Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200012 (Istitute of Material Testing of Serbia - IMS, Belgrade)

Link to this page

info:eu-repo/grantAgreement/MESTD/inst-2020/200012/RS//

Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200012 (Istitute of Material Testing of Serbia - IMS, Belgrade) (en)
Ministarstvo prosvete, nauke i tehnološkog razvoja Republike Srbije, Ugovor br. 200012 (Institut za ispitivanje materijala Srbije - IMS, Beograd) (sr_RS)
Министарство просвете, науке и технолошког развоја Републике Србије, Уговор бр. 200012 (Институт за испитивање материјала Србије - ИМС, Београд) (sr)
Authors

Publications

Pile capacity distribution analysis for SLT with reactive system

Božović, Nikola; Ćosić, Mladen; Đoković, Ksenija; Milićević, Rajo; Krstić, Marija

(2023)

TY  - CONF
AU  - Božović, Nikola
AU  - Ćosić, Mladen
AU  - Đoković, Ksenija
AU  - Milićević, Rajo
AU  - Krstić, Marija
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/671
AB  - In the paper, the analysis of the bearing capacity of the pile and the redistribution of the
load on the pile toe and shaft was carried out. The tests were carried out by a static load test (SLT)
incrementally increasing the compressive force on the test pile, and the tension force on the anchor
piles. The test system consisted of one test pile and two anchor piles with a reaction beam. Two
tests were conducted according to the same test program, where the test piles were of the same
length, while the length of the anchor piles in the second test was increased. In the first test, the
anchor pile failed, while in the second test, the test pile failed. Based on the achieved limit values of
settlement of the test and anchor pile, the bearing capacity of the test pile at the toe and shaft was
determined. Subsequently, a CPT test was carried out and the bearing capacity was calculated
according to the LPC-CPT method.
C3  - GEOTECHNICAL ASPECTS OF CIVIL ENGINEERING AND EARTHQUAKE ENGINEERING - Vrnjačka Banja
T1  - Pile capacity distribution analysis for SLT with reactive system
EP  - 288
SP  - 282
UR  - https://hdl.handle.net/21.15107/rcub_rims_671
ER  - 
@conference{
author = "Božović, Nikola and Ćosić, Mladen and Đoković, Ksenija and Milićević, Rajo and Krstić, Marija",
year = "2023",
abstract = "In the paper, the analysis of the bearing capacity of the pile and the redistribution of the
load on the pile toe and shaft was carried out. The tests were carried out by a static load test (SLT)
incrementally increasing the compressive force on the test pile, and the tension force on the anchor
piles. The test system consisted of one test pile and two anchor piles with a reaction beam. Two
tests were conducted according to the same test program, where the test piles were of the same
length, while the length of the anchor piles in the second test was increased. In the first test, the
anchor pile failed, while in the second test, the test pile failed. Based on the achieved limit values of
settlement of the test and anchor pile, the bearing capacity of the test pile at the toe and shaft was
determined. Subsequently, a CPT test was carried out and the bearing capacity was calculated
according to the LPC-CPT method.",
journal = "GEOTECHNICAL ASPECTS OF CIVIL ENGINEERING AND EARTHQUAKE ENGINEERING - Vrnjačka Banja",
title = "Pile capacity distribution analysis for SLT with reactive system",
pages = "288-282",
url = "https://hdl.handle.net/21.15107/rcub_rims_671"
}
Božović, N., Ćosić, M., Đoković, K., Milićević, R.,& Krstić, M.. (2023). Pile capacity distribution analysis for SLT with reactive system. in GEOTECHNICAL ASPECTS OF CIVIL ENGINEERING AND EARTHQUAKE ENGINEERING - Vrnjačka Banja, 282-288.
https://hdl.handle.net/21.15107/rcub_rims_671
Božović N, Ćosić M, Đoković K, Milićević R, Krstić M. Pile capacity distribution analysis for SLT with reactive system. in GEOTECHNICAL ASPECTS OF CIVIL ENGINEERING AND EARTHQUAKE ENGINEERING - Vrnjačka Banja. 2023;:282-288.
https://hdl.handle.net/21.15107/rcub_rims_671 .
Božović, Nikola, Ćosić, Mladen, Đoković, Ksenija, Milićević, Rajo, Krstić, Marija, "Pile capacity distribution analysis for SLT with reactive system" in GEOTECHNICAL ASPECTS OF CIVIL ENGINEERING AND EARTHQUAKE ENGINEERING - Vrnjačka Banja (2023):282-288,
https://hdl.handle.net/21.15107/rcub_rims_671 .

Analiza modela upravljanja kvalitetom ispitivanja šipova

Ćosić, Mladen; Šušić, Nenad; Prica, Marko; Božović, Nikola; Đoković, Ksenija

(2023)

TY  - CONF
AU  - Ćosić, Mladen
AU  - Šušić, Nenad
AU  - Prica, Marko
AU  - Božović, Nikola
AU  - Đoković, Ksenija
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/672
AB  - U radu je prikazan sadržaj predloženog dokumenta Elaborata ispitivanja šipova i jasnije
su razjašnjene aktivnosti koje su obuhvaćene ovim dokumentom. Na primeru objekta Ušće 2
demonstrirana je primena jednog dela rešenja o ispitivanju šipova, a što bi se našlo u samom
elaboratu. Analizirane su količine (obim) ispitivanja šipova po tipovima testova i analizirane su
aktivnosti u okviru svakog pojedinačnog testa. Naglašeno je da je potrebna bolja saradnja na
relaciji projektant, izvođač i nadzora prema ispitivaču šipova.
C3  - GEOTEHNIČKI ASPEKTI GRAĐEVINARSTVA I ZEMLJOTRESNO INŽENJERSTVO - Vrnjačka Banja
T1  - Analiza modela upravljanja kvalitetom ispitivanja šipova
EP  - 581
SP  - 571
UR  - https://hdl.handle.net/21.15107/rcub_rims_672
ER  - 
@conference{
author = "Ćosić, Mladen and Šušić, Nenad and Prica, Marko and Božović, Nikola and Đoković, Ksenija",
year = "2023",
abstract = "U radu je prikazan sadržaj predloženog dokumenta Elaborata ispitivanja šipova i jasnije
su razjašnjene aktivnosti koje su obuhvaćene ovim dokumentom. Na primeru objekta Ušće 2
demonstrirana je primena jednog dela rešenja o ispitivanju šipova, a što bi se našlo u samom
elaboratu. Analizirane su količine (obim) ispitivanja šipova po tipovima testova i analizirane su
aktivnosti u okviru svakog pojedinačnog testa. Naglašeno je da je potrebna bolja saradnja na
relaciji projektant, izvođač i nadzora prema ispitivaču šipova.",
journal = "GEOTEHNIČKI ASPEKTI GRAĐEVINARSTVA I ZEMLJOTRESNO INŽENJERSTVO - Vrnjačka Banja",
title = "Analiza modela upravljanja kvalitetom ispitivanja šipova",
pages = "581-571",
url = "https://hdl.handle.net/21.15107/rcub_rims_672"
}
Ćosić, M., Šušić, N., Prica, M., Božović, N.,& Đoković, K.. (2023). Analiza modela upravljanja kvalitetom ispitivanja šipova. in GEOTEHNIČKI ASPEKTI GRAĐEVINARSTVA I ZEMLJOTRESNO INŽENJERSTVO - Vrnjačka Banja, 571-581.
https://hdl.handle.net/21.15107/rcub_rims_672
Ćosić M, Šušić N, Prica M, Božović N, Đoković K. Analiza modela upravljanja kvalitetom ispitivanja šipova. in GEOTEHNIČKI ASPEKTI GRAĐEVINARSTVA I ZEMLJOTRESNO INŽENJERSTVO - Vrnjačka Banja. 2023;:571-581.
https://hdl.handle.net/21.15107/rcub_rims_672 .
Ćosić, Mladen, Šušić, Nenad, Prica, Marko, Božović, Nikola, Đoković, Ksenija, "Analiza modela upravljanja kvalitetom ispitivanja šipova" in GEOTEHNIČKI ASPEKTI GRAĐEVINARSTVA I ZEMLJOTRESNO INŽENJERSTVO - Vrnjačka Banja (2023):571-581,
https://hdl.handle.net/21.15107/rcub_rims_672 .

Razvoj modela upravljanja kvalitetom ispitivanja šipova

Ćosić, Mladen; Šušić, Nenad; Prica, Marko; Božović, Nikola; Đoković, Ksenija

(2023)

TY  - CONF
AU  - Ćosić, Mladen
AU  - Šušić, Nenad
AU  - Prica, Marko
AU  - Božović, Nikola
AU  - Đoković, Ksenija
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/673
AB  - U radu je ukazano na postojeće probleme koji se pojavljuju prilikom planiranja, u toku i
nakon ispitivanja šipova. U tom smislu, na osnovu iskustava autora rada, predloženi su modeli
upravljanja kvalitetom ispitivanja šipova kojima se efikasnije planiraju i rešavaju sve aktivnosti
ispitivanja šipova i utiče na donošenje odluka koje se u praksi neadekvatno rešavaju. Posebno je
naglašeno uvođenje i primena Elaborata ispitivanja šipova kao nova forma dokumenta u kojem bi
se celokupna aktivnost planiranja, ispitivanja i donošenja odluka nakon ispitivnaja adekvatno
ispratili.
C3  - GEOTEHNIČKI ASPEKTI GRAĐEVINARSTVA I ZEMLJOTRESNO INŽENJERSTVO - Vrnjačka Banja
T1  - Razvoj modela upravljanja kvalitetom ispitivanja šipova
EP  - 570
SP  - 558
UR  - https://hdl.handle.net/21.15107/rcub_rims_673
ER  - 
@conference{
author = "Ćosić, Mladen and Šušić, Nenad and Prica, Marko and Božović, Nikola and Đoković, Ksenija",
year = "2023",
abstract = "U radu je ukazano na postojeće probleme koji se pojavljuju prilikom planiranja, u toku i
nakon ispitivanja šipova. U tom smislu, na osnovu iskustava autora rada, predloženi su modeli
upravljanja kvalitetom ispitivanja šipova kojima se efikasnije planiraju i rešavaju sve aktivnosti
ispitivanja šipova i utiče na donošenje odluka koje se u praksi neadekvatno rešavaju. Posebno je
naglašeno uvođenje i primena Elaborata ispitivanja šipova kao nova forma dokumenta u kojem bi
se celokupna aktivnost planiranja, ispitivanja i donošenja odluka nakon ispitivnaja adekvatno
ispratili.",
journal = "GEOTEHNIČKI ASPEKTI GRAĐEVINARSTVA I ZEMLJOTRESNO INŽENJERSTVO - Vrnjačka Banja",
title = "Razvoj modela upravljanja kvalitetom ispitivanja šipova",
pages = "570-558",
url = "https://hdl.handle.net/21.15107/rcub_rims_673"
}
Ćosić, M., Šušić, N., Prica, M., Božović, N.,& Đoković, K.. (2023). Razvoj modela upravljanja kvalitetom ispitivanja šipova. in GEOTEHNIČKI ASPEKTI GRAĐEVINARSTVA I ZEMLJOTRESNO INŽENJERSTVO - Vrnjačka Banja, 558-570.
https://hdl.handle.net/21.15107/rcub_rims_673
Ćosić M, Šušić N, Prica M, Božović N, Đoković K. Razvoj modela upravljanja kvalitetom ispitivanja šipova. in GEOTEHNIČKI ASPEKTI GRAĐEVINARSTVA I ZEMLJOTRESNO INŽENJERSTVO - Vrnjačka Banja. 2023;:558-570.
https://hdl.handle.net/21.15107/rcub_rims_673 .
Ćosić, Mladen, Šušić, Nenad, Prica, Marko, Božović, Nikola, Đoković, Ksenija, "Razvoj modela upravljanja kvalitetom ispitivanja šipova" in GEOTEHNIČKI ASPEKTI GRAĐEVINARSTVA I ZEMLJOTRESNO INŽENJERSTVO - Vrnjačka Banja (2023):558-570,
https://hdl.handle.net/21.15107/rcub_rims_673 .

Technical solution for the foundation of the elixire group waste to energy treatment in Prahovo

Krstić, Marija; Božović, Nikola; Milićević, Rajo; Đoković, Ksenija

(2023)

TY  - CONF
AU  - Krstić, Marija
AU  - Božović, Nikola
AU  - Milićević, Rajo
AU  - Đoković, Ksenija
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/675
AB  - The paper presents the technical solution for the foundation of the facilities of the
Boiler House for the energy utilization of waste and chimneys. Next to the boiler house, the
construction of a Bunker for waste storage is planned, which is founded at a depth of 6.0m below
the top of the boiler house's base plate. Based on the conditions of limited settlement, the
foundation of the boiler house was envisioned on drilled piles, while a hidden pile wall was
designed to protect the foundation pit of the bunker, which has the function of preventing large
deformations of the boiler house structure and does not jeopardize its stability. Calculations of the
bearing capacity of the piles based on the soil parameters from the geotechnical study are
presented, as well as the results of the pile tests with axial vertical pressure force.
C3  - GEOTECHNICAL ASPECTS OF CIVIL ENGINEERING AND EARTHQUAKE ENGINEERING - Vrnjačka Banja
T1  - Technical solution for the foundation of the elixire group waste to energy treatment in Prahovo
EP  - 371
SP  - 364
UR  - https://hdl.handle.net/21.15107/rcub_rims_675
ER  - 
@conference{
author = "Krstić, Marija and Božović, Nikola and Milićević, Rajo and Đoković, Ksenija",
year = "2023",
abstract = "The paper presents the technical solution for the foundation of the facilities of the
Boiler House for the energy utilization of waste and chimneys. Next to the boiler house, the
construction of a Bunker for waste storage is planned, which is founded at a depth of 6.0m below
the top of the boiler house's base plate. Based on the conditions of limited settlement, the
foundation of the boiler house was envisioned on drilled piles, while a hidden pile wall was
designed to protect the foundation pit of the bunker, which has the function of preventing large
deformations of the boiler house structure and does not jeopardize its stability. Calculations of the
bearing capacity of the piles based on the soil parameters from the geotechnical study are
presented, as well as the results of the pile tests with axial vertical pressure force.",
journal = "GEOTECHNICAL ASPECTS OF CIVIL ENGINEERING AND EARTHQUAKE ENGINEERING - Vrnjačka Banja",
title = "Technical solution for the foundation of the elixire group waste to energy treatment in Prahovo",
pages = "371-364",
url = "https://hdl.handle.net/21.15107/rcub_rims_675"
}
Krstić, M., Božović, N., Milićević, R.,& Đoković, K.. (2023). Technical solution for the foundation of the elixire group waste to energy treatment in Prahovo. in GEOTECHNICAL ASPECTS OF CIVIL ENGINEERING AND EARTHQUAKE ENGINEERING - Vrnjačka Banja, 364-371.
https://hdl.handle.net/21.15107/rcub_rims_675
Krstić M, Božović N, Milićević R, Đoković K. Technical solution for the foundation of the elixire group waste to energy treatment in Prahovo. in GEOTECHNICAL ASPECTS OF CIVIL ENGINEERING AND EARTHQUAKE ENGINEERING - Vrnjačka Banja. 2023;:364-371.
https://hdl.handle.net/21.15107/rcub_rims_675 .
Krstić, Marija, Božović, Nikola, Milićević, Rajo, Đoković, Ksenija, "Technical solution for the foundation of the elixire group waste to energy treatment in Prahovo" in GEOTECHNICAL ASPECTS OF CIVIL ENGINEERING AND EARTHQUAKE ENGINEERING - Vrnjačka Banja (2023):364-371,
https://hdl.handle.net/21.15107/rcub_rims_675 .

Presence of crack due the constant exploitation of turbine shaft

Aleksić, Vujadin

(2023)

TY  - JOUR
AU  - Aleksić, Vujadin
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/664
AB  - Designing, constructing and putting into operation a hydroelectric power plant includes complex
tasks. Stresses of turbine and hydromechanical equipment of hydro power plants arise during the
production of parts and assembly of equipment (residual stresses), in the process of performing
functional requirements in exploitation and in the disturbed process of exploitation.
After several decades of constant exploitation of the horizontal bulb turbine, which is an integral
part of the hydroelectric power unit, empirically, the formation of a crack occurs in the turbine
shaft due to the influence of corrosion, erosion and cavitation.
Through experimental tests and calculations it has been determined that values of bending stresses
of the turbine, which occur due to the action of fatigue and corrosion, as well as stress
concentration, are bigger than 25 MPa for flanges exposed to water, and in other case bigger than
40 MPa for flanges exposed to `corrosive water` and can cause the occurrence of surface cracks
on the transition radius between the cylindrical part of the shaft and the flange. It has been
determined that stress values in the zone under the influence of bending stresses were bigger than
allowable values, which led to the occurrence of many cracks due to fatigue corrosion. One of
those cracks caused the failure of the shaft and of the whole turbine.
T2  - Advanced Technologies & Materials
T1  - Presence of crack due the constant exploitation of turbine shaft
EP  - 25
IS  - 1
SP  - 21
VL  - 48
DO  - 10.24867/ATM-2023-1-004
ER  - 
@article{
author = "Aleksić, Vujadin",
year = "2023",
abstract = "Designing, constructing and putting into operation a hydroelectric power plant includes complex
tasks. Stresses of turbine and hydromechanical equipment of hydro power plants arise during the
production of parts and assembly of equipment (residual stresses), in the process of performing
functional requirements in exploitation and in the disturbed process of exploitation.
After several decades of constant exploitation of the horizontal bulb turbine, which is an integral
part of the hydroelectric power unit, empirically, the formation of a crack occurs in the turbine
shaft due to the influence of corrosion, erosion and cavitation.
Through experimental tests and calculations it has been determined that values of bending stresses
of the turbine, which occur due to the action of fatigue and corrosion, as well as stress
concentration, are bigger than 25 MPa for flanges exposed to water, and in other case bigger than
40 MPa for flanges exposed to `corrosive water` and can cause the occurrence of surface cracks
on the transition radius between the cylindrical part of the shaft and the flange. It has been
determined that stress values in the zone under the influence of bending stresses were bigger than
allowable values, which led to the occurrence of many cracks due to fatigue corrosion. One of
those cracks caused the failure of the shaft and of the whole turbine.",
journal = "Advanced Technologies & Materials",
title = "Presence of crack due the constant exploitation of turbine shaft",
pages = "25-21",
number = "1",
volume = "48",
doi = "10.24867/ATM-2023-1-004"
}
Aleksić, V.. (2023). Presence of crack due the constant exploitation of turbine shaft. in Advanced Technologies & Materials, 48(1), 21-25.
https://doi.org/10.24867/ATM-2023-1-004
Aleksić V. Presence of crack due the constant exploitation of turbine shaft. in Advanced Technologies & Materials. 2023;48(1):21-25.
doi:10.24867/ATM-2023-1-004 .
Aleksić, Vujadin, "Presence of crack due the constant exploitation of turbine shaft" in Advanced Technologies & Materials, 48, no. 1 (2023):21-25,
https://doi.org/10.24867/ATM-2023-1-004 . .

Connectivity approach in urban protected area management based on soil and vegetation chemical status

Veselinović, Gorica; Štrbac, Snežana; Antić, Nevena; Ferreira, Carla; Dinca, Lucian; Mijatović, Nevenka; Kašanin-Grubin, Milica

(Springer, 2023)

TY  - JOUR
AU  - Veselinović, Gorica
AU  - Štrbac, Snežana
AU  - Antić, Nevena
AU  - Ferreira, Carla
AU  - Dinca, Lucian
AU  - Mijatović, Nevenka
AU  - Kašanin-Grubin, Milica
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/653
AB  - The quality and vitality of cities largely depend on the design, management, and maintenance of green areas, including urban protected areas (UPAs), since they provide multiple benefits for the city. Due to urbanization and higher anthropogenic pressure, green areas are decreasing which directly affects natural habitats and biodiversity. This study aims to assess soil and vegetation chemical status in UPAs in the city of Belgrade, Serbia, and to understand how their distance from pollution hotspots affects soil and vegetation quality. Additionally, this paper considers the inclusion of soil and vegetation conditions in the urban protected areas management as a basis for introducing a connectivity approach to expand green infrastructure throughout the city. Chemical properties, the content of nutrients (C, N, P, and K), and microelements (Cr, Co, Ni, Cu, Zn, As, Cd, Sn, Pb, Zr, U, and Th) in soil and conifer needles were analyzed. Results showed that the distance of pollution hotspots does not affect nutrient and microelements concentrations in soil, i.e., they do not vary significantly between sites and do not exceed remediation intervention values. However, the microelements status of vegetation is affected since Cr, Cu, Zn, Sn, and Pb are higher in needles from trees from the city center. The state of soil and plant composition supports the establishment of a network of green corridors and should become a part of management strategies, thus helping biodiversity protection, climate change mitigation, and human well-being in the cities.
PB  - Springer
T2  - Environmental Geochemistry & Health
T1  - Connectivity approach in urban protected area management based on soil and vegetation chemical status
DO  - 10.1007/s10653-023-01553-4
ER  - 
@article{
author = "Veselinović, Gorica and Štrbac, Snežana and Antić, Nevena and Ferreira, Carla and Dinca, Lucian and Mijatović, Nevenka and Kašanin-Grubin, Milica",
year = "2023",
abstract = "The quality and vitality of cities largely depend on the design, management, and maintenance of green areas, including urban protected areas (UPAs), since they provide multiple benefits for the city. Due to urbanization and higher anthropogenic pressure, green areas are decreasing which directly affects natural habitats and biodiversity. This study aims to assess soil and vegetation chemical status in UPAs in the city of Belgrade, Serbia, and to understand how their distance from pollution hotspots affects soil and vegetation quality. Additionally, this paper considers the inclusion of soil and vegetation conditions in the urban protected areas management as a basis for introducing a connectivity approach to expand green infrastructure throughout the city. Chemical properties, the content of nutrients (C, N, P, and K), and microelements (Cr, Co, Ni, Cu, Zn, As, Cd, Sn, Pb, Zr, U, and Th) in soil and conifer needles were analyzed. Results showed that the distance of pollution hotspots does not affect nutrient and microelements concentrations in soil, i.e., they do not vary significantly between sites and do not exceed remediation intervention values. However, the microelements status of vegetation is affected since Cr, Cu, Zn, Sn, and Pb are higher in needles from trees from the city center. The state of soil and plant composition supports the establishment of a network of green corridors and should become a part of management strategies, thus helping biodiversity protection, climate change mitigation, and human well-being in the cities.",
publisher = "Springer",
journal = "Environmental Geochemistry & Health",
title = "Connectivity approach in urban protected area management based on soil and vegetation chemical status",
doi = "10.1007/s10653-023-01553-4"
}
Veselinović, G., Štrbac, S., Antić, N., Ferreira, C., Dinca, L., Mijatović, N.,& Kašanin-Grubin, M.. (2023). Connectivity approach in urban protected area management based on soil and vegetation chemical status. in Environmental Geochemistry & Health
Springer..
https://doi.org/10.1007/s10653-023-01553-4
Veselinović G, Štrbac S, Antić N, Ferreira C, Dinca L, Mijatović N, Kašanin-Grubin M. Connectivity approach in urban protected area management based on soil and vegetation chemical status. in Environmental Geochemistry & Health. 2023;.
doi:10.1007/s10653-023-01553-4 .
Veselinović, Gorica, Štrbac, Snežana, Antić, Nevena, Ferreira, Carla, Dinca, Lucian, Mijatović, Nevenka, Kašanin-Grubin, Milica, "Connectivity approach in urban protected area management based on soil and vegetation chemical status" in Environmental Geochemistry & Health (2023),
https://doi.org/10.1007/s10653-023-01553-4 . .
1
1

Procedure for correction of bearing capacity of piles examined by the Dynamic Load Test (DLT) according to the Static Load Test (SLT)

Ćosić, Mladen; Šušić, Nenad; Prica, Marko; Đoković, Ksenija

(2023)

TY  - JOUR
AU  - Ćosić, Mladen
AU  - Šušić, Nenad
AU  - Prica, Marko
AU  - Đoković, Ksenija
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/493
AB  - The paper shows the comparative analysis of behavior and bearing capacity of piles examined using the Dynamic Load Test (DLT) according to Static Load Test (SLT) results. The pile testing methodology is based on the existing ASTM standards and experiences of the authors of the paper. The pile tests were carried out using counterweights, reactive system, dynamic testing equipment, hardware and software for SLT and DLT. The data obtained by testing were statis-tically processed, and also a regression analysis of the linear function was conducted, resulting in the creation of the model for the change of mobilized static bearing capacity from DLT according to SLT. In addition, a procedure for correcting the solution of mobilized static bearing capacity from DLT according to SLT, is made by observing provisions of standard EN 1997-1:2004, so the average deviation of solutions from DLT according to SLT is reduced. Apart from that, through iterations, the value of correlation factor ξ5 is determined, taking into consideration solutions presented by SLT and DLT of piles of the real structures.
T2  - Structural Integrity and Life, Special Issue
T1  - Procedure for correction of bearing capacity of piles examined by the Dynamic Load Test (DLT) according to the Static Load Test (SLT)
EP  - 68
SP  - 53
VL  - 23
UR  - https://hdl.handle.net/21.15107/rcub_rims_493
ER  - 
@article{
author = "Ćosić, Mladen and Šušić, Nenad and Prica, Marko and Đoković, Ksenija",
year = "2023",
abstract = "The paper shows the comparative analysis of behavior and bearing capacity of piles examined using the Dynamic Load Test (DLT) according to Static Load Test (SLT) results. The pile testing methodology is based on the existing ASTM standards and experiences of the authors of the paper. The pile tests were carried out using counterweights, reactive system, dynamic testing equipment, hardware and software for SLT and DLT. The data obtained by testing were statis-tically processed, and also a regression analysis of the linear function was conducted, resulting in the creation of the model for the change of mobilized static bearing capacity from DLT according to SLT. In addition, a procedure for correcting the solution of mobilized static bearing capacity from DLT according to SLT, is made by observing provisions of standard EN 1997-1:2004, so the average deviation of solutions from DLT according to SLT is reduced. Apart from that, through iterations, the value of correlation factor ξ5 is determined, taking into consideration solutions presented by SLT and DLT of piles of the real structures.",
journal = "Structural Integrity and Life, Special Issue",
title = "Procedure for correction of bearing capacity of piles examined by the Dynamic Load Test (DLT) according to the Static Load Test (SLT)",
pages = "68-53",
volume = "23",
url = "https://hdl.handle.net/21.15107/rcub_rims_493"
}
Ćosić, M., Šušić, N., Prica, M.,& Đoković, K.. (2023). Procedure for correction of bearing capacity of piles examined by the Dynamic Load Test (DLT) according to the Static Load Test (SLT). in Structural Integrity and Life, Special Issue, 23, 53-68.
https://hdl.handle.net/21.15107/rcub_rims_493
Ćosić M, Šušić N, Prica M, Đoković K. Procedure for correction of bearing capacity of piles examined by the Dynamic Load Test (DLT) according to the Static Load Test (SLT). in Structural Integrity and Life, Special Issue. 2023;23:53-68.
https://hdl.handle.net/21.15107/rcub_rims_493 .
Ćosić, Mladen, Šušić, Nenad, Prica, Marko, Đoković, Ksenija, "Procedure for correction of bearing capacity of piles examined by the Dynamic Load Test (DLT) according to the Static Load Test (SLT)" in Structural Integrity and Life, Special Issue, 23 (2023):53-68,
https://hdl.handle.net/21.15107/rcub_rims_493 .

Dispersive Soils: Properties, Identification, Classification and Stabilization

Đoković, Ksenija; Šušić, Nenad; Ćosić, Mladen

(2023)

TY  - JOUR
AU  - Đoković, Ksenija
AU  - Šušić, Nenad
AU  - Ćosić, Mladen
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/492
AB  - The application of dispersive soil can result in various types of damage, and even the collapse of embanked build-ings if it is not identified. Dispersive soils cannot be uniquely identified by visual identification in the field, or by usual standard methods used for soil identification in the geo-mechanical laboratory. The paper presents the results of laboratory geomechanical tests aimed at identifying and classifying erodible dispersive fine-grained soil. The tests were carried out using the crumb test, the double hydrometer test (SCS), and the pinhole test on samples: sandy clay embankment dams of ‘Rovni’, loess from different locations (Zemun, Novi Beograd, Titel, Kelebija, Srbobran, Slanka-men, Ruma, Mali Iđoš) and kaolinite sandy clay deposits Grabež - Aranđelovac. The possibility of improving disper-sive soil by adding fly ash was also analyzed. Pinhole tests on dispersive soil samples with the addition of 10, 30 and 50 % ash showed that there was a decrease in dispersivity of natural soil for one to two dispersion classes.
T2  - Integritet i vek konstrukcija, specijalno izdanje
T1  - Dispersive Soils: Properties, Identification, Classification and Stabilization
EP  - 52
SP  - 47
VL  - 23
UR  - https://hdl.handle.net/21.15107/rcub_rims_492
ER  - 
@article{
author = "Đoković, Ksenija and Šušić, Nenad and Ćosić, Mladen",
year = "2023",
abstract = "The application of dispersive soil can result in various types of damage, and even the collapse of embanked build-ings if it is not identified. Dispersive soils cannot be uniquely identified by visual identification in the field, or by usual standard methods used for soil identification in the geo-mechanical laboratory. The paper presents the results of laboratory geomechanical tests aimed at identifying and classifying erodible dispersive fine-grained soil. The tests were carried out using the crumb test, the double hydrometer test (SCS), and the pinhole test on samples: sandy clay embankment dams of ‘Rovni’, loess from different locations (Zemun, Novi Beograd, Titel, Kelebija, Srbobran, Slanka-men, Ruma, Mali Iđoš) and kaolinite sandy clay deposits Grabež - Aranđelovac. The possibility of improving disper-sive soil by adding fly ash was also analyzed. Pinhole tests on dispersive soil samples with the addition of 10, 30 and 50 % ash showed that there was a decrease in dispersivity of natural soil for one to two dispersion classes.",
journal = "Integritet i vek konstrukcija, specijalno izdanje",
title = "Dispersive Soils: Properties, Identification, Classification and Stabilization",
pages = "52-47",
volume = "23",
url = "https://hdl.handle.net/21.15107/rcub_rims_492"
}
Đoković, K., Šušić, N.,& Ćosić, M.. (2023). Dispersive Soils: Properties, Identification, Classification and Stabilization. in Integritet i vek konstrukcija, specijalno izdanje, 23, 47-52.
https://hdl.handle.net/21.15107/rcub_rims_492
Đoković K, Šušić N, Ćosić M. Dispersive Soils: Properties, Identification, Classification and Stabilization. in Integritet i vek konstrukcija, specijalno izdanje. 2023;23:47-52.
https://hdl.handle.net/21.15107/rcub_rims_492 .
Đoković, Ksenija, Šušić, Nenad, Ćosić, Mladen, "Dispersive Soils: Properties, Identification, Classification and Stabilization" in Integritet i vek konstrukcija, specijalno izdanje, 23 (2023):47-52,
https://hdl.handle.net/21.15107/rcub_rims_492 .

Rection to fire - SBI test

Ilić, Snežana; Laban, Mirjana; Džolev, Igor

(2023)

TY  - CONF
AU  - Ilić, Snežana
AU  - Laban, Mirjana
AU  - Džolev, Igor
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/599
AB  - The fire reaction represents the behavior of materials during a fire event, i.e., how much the material contributes to the fire development. The importance of determining the fire reaction class stems from the need to provide sufficient time for the individuals inside a building to evacuate safely in the event of a fire. The fire reaction class is determined through a series of tests, depending on the material, with the most significant test in this group being the SBI (Single Burning Item) test. The paper describes the preparation method of test samples, the testing procedure itself, as well as the output data used for determination of the fire resistance class for tested material. According to the SRPS EN 13823 standard, a sample of a multilayered facade system with mineral wool was tested. The testing process itself, as well as the processed results, are stated in the conclusionof the study.
C3  - Engineering Conference, Bečići, Crna Gora, Proceedings
T1  - Rection to fire - SBI test
UR  - https://hdl.handle.net/21.15107/rcub_rims_599
ER  - 
@conference{
author = "Ilić, Snežana and Laban, Mirjana and Džolev, Igor",
year = "2023",
abstract = "The fire reaction represents the behavior of materials during a fire event, i.e., how much the material contributes to the fire development. The importance of determining the fire reaction class stems from the need to provide sufficient time for the individuals inside a building to evacuate safely in the event of a fire. The fire reaction class is determined through a series of tests, depending on the material, with the most significant test in this group being the SBI (Single Burning Item) test. The paper describes the preparation method of test samples, the testing procedure itself, as well as the output data used for determination of the fire resistance class for tested material. According to the SRPS EN 13823 standard, a sample of a multilayered facade system with mineral wool was tested. The testing process itself, as well as the processed results, are stated in the conclusionof the study.",
journal = "Engineering Conference, Bečići, Crna Gora, Proceedings",
title = "Rection to fire - SBI test",
url = "https://hdl.handle.net/21.15107/rcub_rims_599"
}
Ilić, S., Laban, M.,& Džolev, I.. (2023). Rection to fire - SBI test. in Engineering Conference, Bečići, Crna Gora, Proceedings.
https://hdl.handle.net/21.15107/rcub_rims_599
Ilić S, Laban M, Džolev I. Rection to fire - SBI test. in Engineering Conference, Bečići, Crna Gora, Proceedings. 2023;.
https://hdl.handle.net/21.15107/rcub_rims_599 .
Ilić, Snežana, Laban, Mirjana, Džolev, Igor, "Rection to fire - SBI test" in Engineering Conference, Bečići, Crna Gora, Proceedings (2023),
https://hdl.handle.net/21.15107/rcub_rims_599 .

Određivanje koeficijenta prolaza toplote i otpornosti prema požaru zida izrađenog od giter-blokova

Kijanović, Aleksandar; Ilić, Snežana; Mirković-Marjanović, Milica

(2023)

TY  - JOUR
AU  - Kijanović, Aleksandar
AU  - Ilić, Snežana
AU  - Mirković-Marjanović, Milica
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/490
AB  - Unazad par godina, sve više pažnje se posvećuje poboljša-nju energetske efikasnosti zgrada. Iz tog razloga se posebna pažnja obraća na dokazivanje što boljih performansi proiz-voda koji se ugrađuju u objekte. U radu je urađena numerička i eksperimentalna analiza za dobijanje koeficijenta prolaženja toplote. Analiziran je giter-blok ispunjen kamenom vunom. Eksperimentalna analiza za dobijanje koeficijenta prolaženja toplote je urađena u skladu sa standardom SRPS U. J5.060, dok je numerička analiza izvršena primenom softvera THERM, čiji se proračun bazira na standardu ISO 15099. U radu je prikazana uporedna analiza rezultata dobijenih eksperimentalnim i numeričkim putem. Eksperimentalnim putem je dobijena vrednost za otpornost prema požaru za zid izrađen od šupljih giter-blokova. Zid je ispitan u skladu sa standardom SRPS EN 1364-1.
T2  - Integritet i vek konstrukcija, specijalno izdanje
T1  - Određivanje koeficijenta prolaza toplote i otpornosti prema požaru zida izrađenog od giter-blokova
EP  - 40
SP  - 35
VL  - 23
UR  - https://hdl.handle.net/21.15107/rcub_rims_490
ER  - 
@article{
author = "Kijanović, Aleksandar and Ilić, Snežana and Mirković-Marjanović, Milica",
year = "2023",
abstract = "Unazad par godina, sve više pažnje se posvećuje poboljša-nju energetske efikasnosti zgrada. Iz tog razloga se posebna pažnja obraća na dokazivanje što boljih performansi proiz-voda koji se ugrađuju u objekte. U radu je urađena numerička i eksperimentalna analiza za dobijanje koeficijenta prolaženja toplote. Analiziran je giter-blok ispunjen kamenom vunom. Eksperimentalna analiza za dobijanje koeficijenta prolaženja toplote je urađena u skladu sa standardom SRPS U. J5.060, dok je numerička analiza izvršena primenom softvera THERM, čiji se proračun bazira na standardu ISO 15099. U radu je prikazana uporedna analiza rezultata dobijenih eksperimentalnim i numeričkim putem. Eksperimentalnim putem je dobijena vrednost za otpornost prema požaru za zid izrađen od šupljih giter-blokova. Zid je ispitan u skladu sa standardom SRPS EN 1364-1.",
journal = "Integritet i vek konstrukcija, specijalno izdanje",
title = "Određivanje koeficijenta prolaza toplote i otpornosti prema požaru zida izrađenog od giter-blokova",
pages = "40-35",
volume = "23",
url = "https://hdl.handle.net/21.15107/rcub_rims_490"
}
Kijanović, A., Ilić, S.,& Mirković-Marjanović, M.. (2023). Određivanje koeficijenta prolaza toplote i otpornosti prema požaru zida izrađenog od giter-blokova. in Integritet i vek konstrukcija, specijalno izdanje, 23, 35-40.
https://hdl.handle.net/21.15107/rcub_rims_490
Kijanović A, Ilić S, Mirković-Marjanović M. Određivanje koeficijenta prolaza toplote i otpornosti prema požaru zida izrađenog od giter-blokova. in Integritet i vek konstrukcija, specijalno izdanje. 2023;23:35-40.
https://hdl.handle.net/21.15107/rcub_rims_490 .
Kijanović, Aleksandar, Ilić, Snežana, Mirković-Marjanović, Milica, "Određivanje koeficijenta prolaza toplote i otpornosti prema požaru zida izrađenog od giter-blokova" in Integritet i vek konstrukcija, specijalno izdanje, 23 (2023):35-40,
https://hdl.handle.net/21.15107/rcub_rims_490 .

Heavyweight Ultra-High-Performance Concrete with Micro-Reinforcement

Janković, Ksenija; Stanković, Srboljub; Bojović, Dragan; Stojanović, Marko; Antić Aranđelović, Lana; Terzić, Anja

(2023)

TY  - CONF
AU  - Janković, Ksenija
AU  - Stanković, Srboljub
AU  - Bojović, Dragan
AU  - Stojanović, Marko
AU  - Antić Aranđelović, Lana
AU  - Terzić, Anja
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/575
AB  - The impacts of nano-silica addition, steel micro-reinforcement, and aggregate type on the mechanical properties and durability of ultra-high-performance concrete (UHPC) were studied. As aggregates, quartz and barite were used. The amounts of steel fibers and nano-silica were alternated. Six concrete mixes were produced with quartz sand, and the remaining six concrete mixes were designed with barite sand. Fibers made about 3-5% of the concrete composition’s mass. In a 2-5% concentration, nano-silica was used as a cement replacement. The inclusion of nano-silica significantly boosted the compressive strength of UHPC. The compressive and flexural strengths were also positively impacted by fiber supplementation ranging from 3% to 5%. The amount of fiber utilized proved to be more influential than the aggregate used. The UHPC concrete's durability was increased as all samples were highly resistant to freezing and thawing cycles. UHPC designed with barite aggregate demonstrated good X and gamma ray absorption at energies below 300 keV.
C3  - Serbian Ceramic Society Conference “Advanced Ceramic and Application XI – New frontiers in multifunctional material science and processing”, Book of Abstracts, Belgrade, Serbia
T1  - Heavyweight Ultra-High-Performance Concrete with Micro-Reinforcement
SP  - 83
UR  - https://hdl.handle.net/21.15107/rcub_rims_575
ER  - 
@conference{
author = "Janković, Ksenija and Stanković, Srboljub and Bojović, Dragan and Stojanović, Marko and Antić Aranđelović, Lana and Terzić, Anja",
year = "2023",
abstract = "The impacts of nano-silica addition, steel micro-reinforcement, and aggregate type on the mechanical properties and durability of ultra-high-performance concrete (UHPC) were studied. As aggregates, quartz and barite were used. The amounts of steel fibers and nano-silica were alternated. Six concrete mixes were produced with quartz sand, and the remaining six concrete mixes were designed with barite sand. Fibers made about 3-5% of the concrete composition’s mass. In a 2-5% concentration, nano-silica was used as a cement replacement. The inclusion of nano-silica significantly boosted the compressive strength of UHPC. The compressive and flexural strengths were also positively impacted by fiber supplementation ranging from 3% to 5%. The amount of fiber utilized proved to be more influential than the aggregate used. The UHPC concrete's durability was increased as all samples were highly resistant to freezing and thawing cycles. UHPC designed with barite aggregate demonstrated good X and gamma ray absorption at energies below 300 keV.",
journal = "Serbian Ceramic Society Conference “Advanced Ceramic and Application XI – New frontiers in multifunctional material science and processing”, Book of Abstracts, Belgrade, Serbia",
title = "Heavyweight Ultra-High-Performance Concrete with Micro-Reinforcement",
pages = "83",
url = "https://hdl.handle.net/21.15107/rcub_rims_575"
}
Janković, K., Stanković, S., Bojović, D., Stojanović, M., Antić Aranđelović, L.,& Terzić, A.. (2023). Heavyweight Ultra-High-Performance Concrete with Micro-Reinforcement. in Serbian Ceramic Society Conference “Advanced Ceramic and Application XI – New frontiers in multifunctional material science and processing”, Book of Abstracts, Belgrade, Serbia, 83.
https://hdl.handle.net/21.15107/rcub_rims_575
Janković K, Stanković S, Bojović D, Stojanović M, Antić Aranđelović L, Terzić A. Heavyweight Ultra-High-Performance Concrete with Micro-Reinforcement. in Serbian Ceramic Society Conference “Advanced Ceramic and Application XI – New frontiers in multifunctional material science and processing”, Book of Abstracts, Belgrade, Serbia. 2023;:83.
https://hdl.handle.net/21.15107/rcub_rims_575 .
Janković, Ksenija, Stanković, Srboljub, Bojović, Dragan, Stojanović, Marko, Antić Aranđelović, Lana, Terzić, Anja, "Heavyweight Ultra-High-Performance Concrete with Micro-Reinforcement" in Serbian Ceramic Society Conference “Advanced Ceramic and Application XI – New frontiers in multifunctional material science and processing”, Book of Abstracts, Belgrade, Serbia (2023):83,
https://hdl.handle.net/21.15107/rcub_rims_575 .

An augmented approach for the determination of the particle size effect on energy dispersive X-ray fluorescence analysis outcomes for alumina-based refractory materials

Mijatović, Nevenka; Vasić, Milica; Terzić, Anja; Radomirović, Milena; Miličić, Ljiljana

(2023)

TY  - JOUR
AU  - Mijatović, Nevenka
AU  - Vasić, Milica
AU  - Terzić, Anja
AU  - Radomirović, Milena
AU  - Miličić, Ljiljana
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/577
AB  - The chemical compositions of refractory materials, such as high-alumina concrete, bricks, and putty, were analyzed using an energy-dispersive X-ray spectrometer (EDXRF). An improved methodology for investigating the effect of particle size on the outcomes of EDXRF chemical analysis is presented. Eight independent refractory samples (refractory concrete, brick, and putty) were pulverized utilizing seven milling times (30, 60, 120, 180, 240, 300, and 360 s) and compared to non-pulverized samples. Thus, sixty-four refractory samples were obtained and analyzed using EDXRF. The method for measuring the fundamental EDXRF characteristics was then tested with ten certified reference materials. The acquired data were compared using inductively coupled plasma atomic emission spectrometry (ICP-OES). Univariate and multivariate statistics are used to evaluate EDXRF data. The particle size of the tested samples affected the z-scores of SiO2, Al2O3, Fe2O3, TiO2, CaO, MgO, Na2O, K2O, and P2O5 concentration measurements. Grinding times for refractory concrete, brick, and putty samples were determined in order to validate the robustness of the EDXRF technique and provide reliable chemical analyses. The ideal milling times for the samples studied ranged from 180 to 360 s, depending on the type of refractory material.
T2  - Spectrochimica Acta Part B: Atomic Spectroscopy
T1  - An augmented approach for the determination of the particle size effect on energy dispersive X-ray fluorescence analysis outcomes for alumina-based refractory materials
IS  - 106796
VL  - 209
DO  - 10.1016/j.sab.2023.106796
ER  - 
@article{
author = "Mijatović, Nevenka and Vasić, Milica and Terzić, Anja and Radomirović, Milena and Miličić, Ljiljana",
year = "2023",
abstract = "The chemical compositions of refractory materials, such as high-alumina concrete, bricks, and putty, were analyzed using an energy-dispersive X-ray spectrometer (EDXRF). An improved methodology for investigating the effect of particle size on the outcomes of EDXRF chemical analysis is presented. Eight independent refractory samples (refractory concrete, brick, and putty) were pulverized utilizing seven milling times (30, 60, 120, 180, 240, 300, and 360 s) and compared to non-pulverized samples. Thus, sixty-four refractory samples were obtained and analyzed using EDXRF. The method for measuring the fundamental EDXRF characteristics was then tested with ten certified reference materials. The acquired data were compared using inductively coupled plasma atomic emission spectrometry (ICP-OES). Univariate and multivariate statistics are used to evaluate EDXRF data. The particle size of the tested samples affected the z-scores of SiO2, Al2O3, Fe2O3, TiO2, CaO, MgO, Na2O, K2O, and P2O5 concentration measurements. Grinding times for refractory concrete, brick, and putty samples were determined in order to validate the robustness of the EDXRF technique and provide reliable chemical analyses. The ideal milling times for the samples studied ranged from 180 to 360 s, depending on the type of refractory material.",
journal = "Spectrochimica Acta Part B: Atomic Spectroscopy",
title = "An augmented approach for the determination of the particle size effect on energy dispersive X-ray fluorescence analysis outcomes for alumina-based refractory materials",
number = "106796",
volume = "209",
doi = "10.1016/j.sab.2023.106796"
}
Mijatović, N., Vasić, M., Terzić, A., Radomirović, M.,& Miličić, L.. (2023). An augmented approach for the determination of the particle size effect on energy dispersive X-ray fluorescence analysis outcomes for alumina-based refractory materials. in Spectrochimica Acta Part B: Atomic Spectroscopy, 209(106796).
https://doi.org/10.1016/j.sab.2023.106796
Mijatović N, Vasić M, Terzić A, Radomirović M, Miličić L. An augmented approach for the determination of the particle size effect on energy dispersive X-ray fluorescence analysis outcomes for alumina-based refractory materials. in Spectrochimica Acta Part B: Atomic Spectroscopy. 2023;209(106796).
doi:10.1016/j.sab.2023.106796 .
Mijatović, Nevenka, Vasić, Milica, Terzić, Anja, Radomirović, Milena, Miličić, Ljiljana, "An augmented approach for the determination of the particle size effect on energy dispersive X-ray fluorescence analysis outcomes for alumina-based refractory materials" in Spectrochimica Acta Part B: Atomic Spectroscopy, 209, no. 106796 (2023),
https://doi.org/10.1016/j.sab.2023.106796 . .

Influence of coal ashes on fired clay brick quality: Random forest regression and artifcial neural networks modeling

Vasić, Milica; Jantunen, Heli; Mijatović, Nevenka; Nelo, Mikko; Munoz Velasco, Pedro

(Elsevier Ltd, 2023)

TY  - JOUR
AU  - Vasić, Milica
AU  - Jantunen, Heli
AU  - Mijatović, Nevenka
AU  - Nelo, Mikko
AU  - Munoz Velasco, Pedro
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/516
AB  - Finding a solution to the problem of the large buildup of coal ashes is a vital necessity. Although the use of coal
ashes in fired clay bricks has been thoroughly investigated, there is insuffcient information on their industrial
utilization and researchers do not agree on whether or not this addition improves the quality of the fnal
products. Therefore, a database has gathered 20 years of research containing key factors related to the quality of
the bricks (i.e., chemical composition, fring temperature, soaking time, open porosity, water absorption and
compressive strength). Then, random forest regression and artifcial neural networks (ANN) modeling were used
to separately predict the parameters concerning the quality of the fnal products. The overall conclusions were
that the compressive strengths were the highest when using fly ashes and that class F ashes were highly suitable
to be used in the brick industry as a replacement material for brick clay. In addition, the ANN models showed
higher coeffcients of determination and an overall better fit to the experimental data. By changing the chemical
makeup of the initial materials and their proportions, the particle size of the ashes, the firing temperature and
soaking time, as well as the size of a product, the created models can be used to estimate the quality of the brick
containing coal ash. That is crucial because the inconsistent chemical composition of ash is generally the main
obstacle to its utilization. The local sensitivity analysis revealed the highest influence of the content of the alkali
oxides in the initial clay on the fired clay bricks due to their fluxing effect. In the case of ash-clay bricks, the
decisive factors were the type of furnace used, the ashes’ class, the Na2O content in raw clay, and the K2O
introduced with the ash. The F class ashes containing about 2–3% of K2O and <5% of CaO gave the highest
compressive strength in bricks fred at 1000–1100 ◦C.
Additional analyzes were made for 50% pond ash and 50% clay bricks to test the best-suited model and fill in
the knowledge gap. The results obtained in this study are important for supporting the decision in the selection of
materials and process parameter values that will increase the quality of the ash-clay-fired bricks.
PB  - Elsevier Ltd
T2  - Journal of Cleaner Production
T1  - Influence of coal ashes on fired clay brick quality: Random forest regression and artifcial neural networks modeling
VL  - 407
DO  - 10.1016/j.jclepro.2023.137153
ER  - 
@article{
author = "Vasić, Milica and Jantunen, Heli and Mijatović, Nevenka and Nelo, Mikko and Munoz Velasco, Pedro",
year = "2023",
abstract = "Finding a solution to the problem of the large buildup of coal ashes is a vital necessity. Although the use of coal
ashes in fired clay bricks has been thoroughly investigated, there is insuffcient information on their industrial
utilization and researchers do not agree on whether or not this addition improves the quality of the fnal
products. Therefore, a database has gathered 20 years of research containing key factors related to the quality of
the bricks (i.e., chemical composition, fring temperature, soaking time, open porosity, water absorption and
compressive strength). Then, random forest regression and artifcial neural networks (ANN) modeling were used
to separately predict the parameters concerning the quality of the fnal products. The overall conclusions were
that the compressive strengths were the highest when using fly ashes and that class F ashes were highly suitable
to be used in the brick industry as a replacement material for brick clay. In addition, the ANN models showed
higher coeffcients of determination and an overall better fit to the experimental data. By changing the chemical
makeup of the initial materials and their proportions, the particle size of the ashes, the firing temperature and
soaking time, as well as the size of a product, the created models can be used to estimate the quality of the brick
containing coal ash. That is crucial because the inconsistent chemical composition of ash is generally the main
obstacle to its utilization. The local sensitivity analysis revealed the highest influence of the content of the alkali
oxides in the initial clay on the fired clay bricks due to their fluxing effect. In the case of ash-clay bricks, the
decisive factors were the type of furnace used, the ashes’ class, the Na2O content in raw clay, and the K2O
introduced with the ash. The F class ashes containing about 2–3% of K2O and <5% of CaO gave the highest
compressive strength in bricks fred at 1000–1100 ◦C.
Additional analyzes were made for 50% pond ash and 50% clay bricks to test the best-suited model and fill in
the knowledge gap. The results obtained in this study are important for supporting the decision in the selection of
materials and process parameter values that will increase the quality of the ash-clay-fired bricks.",
publisher = "Elsevier Ltd",
journal = "Journal of Cleaner Production",
title = "Influence of coal ashes on fired clay brick quality: Random forest regression and artifcial neural networks modeling",
volume = "407",
doi = "10.1016/j.jclepro.2023.137153"
}
Vasić, M., Jantunen, H., Mijatović, N., Nelo, M.,& Munoz Velasco, P.. (2023). Influence of coal ashes on fired clay brick quality: Random forest regression and artifcial neural networks modeling. in Journal of Cleaner Production
Elsevier Ltd., 407.
https://doi.org/10.1016/j.jclepro.2023.137153
Vasić M, Jantunen H, Mijatović N, Nelo M, Munoz Velasco P. Influence of coal ashes on fired clay brick quality: Random forest regression and artifcial neural networks modeling. in Journal of Cleaner Production. 2023;407.
doi:10.1016/j.jclepro.2023.137153 .
Vasić, Milica, Jantunen, Heli, Mijatović, Nevenka, Nelo, Mikko, Munoz Velasco, Pedro, "Influence of coal ashes on fired clay brick quality: Random forest regression and artifcial neural networks modeling" in Journal of Cleaner Production, 407 (2023),
https://doi.org/10.1016/j.jclepro.2023.137153 . .
1
4

Effective removal of the heavy metal ion Cd2+ from the structure of cementitious materials with mineral additives

Mijatović, Nevenka; Terzić, Anja; Miličić, Ljiljana

(2023)

TY  - JOUR
AU  - Mijatović, Nevenka
AU  - Terzić, Anja
AU  - Miličić, Ljiljana
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/488
AB  - Natural zeolite and bentonite were used as mineral addi-tions to create cement-based building materials that are safe for the environment. This research focuses on the adsorptive qualities of these two clay raw materials, i.e., their propen-sity to immobilize heavy metal ions like Cd2+. The acquired results were examined using kinetic models of pseudo-first and pseudo-second order. The isotherms of Langmuir and Freundlich were examined. Zeolite and bentonite had differ-ent adsorption affinities for Cd2+ cations. Seven cement binders with various mineral additions (fly ash, zeolite, bentonite) underwent a leaching test. The adsorption and hydration mechanisms that immobilized heavy metals within cementitious composites caused leachates obtained on cement samples with the addition of fly ash and clay (either zeolite or bentonite) to contain lower concentrations of Cd2+ ions than leachates obtained on cement samples with fly ash alone.
T2  - Structural Integrity and Life, Special Issue
T1  - Effective removal of the heavy metal ion Cd2+ from the structure of cementitious materials with mineral additives
EP  - 24
SP  - 19
VL  - 23
UR  - https://hdl.handle.net/21.15107/rcub_rims_488
ER  - 
@article{
author = "Mijatović, Nevenka and Terzić, Anja and Miličić, Ljiljana",
year = "2023",
abstract = "Natural zeolite and bentonite were used as mineral addi-tions to create cement-based building materials that are safe for the environment. This research focuses on the adsorptive qualities of these two clay raw materials, i.e., their propen-sity to immobilize heavy metal ions like Cd2+. The acquired results were examined using kinetic models of pseudo-first and pseudo-second order. The isotherms of Langmuir and Freundlich were examined. Zeolite and bentonite had differ-ent adsorption affinities for Cd2+ cations. Seven cement binders with various mineral additions (fly ash, zeolite, bentonite) underwent a leaching test. The adsorption and hydration mechanisms that immobilized heavy metals within cementitious composites caused leachates obtained on cement samples with the addition of fly ash and clay (either zeolite or bentonite) to contain lower concentrations of Cd2+ ions than leachates obtained on cement samples with fly ash alone.",
journal = "Structural Integrity and Life, Special Issue",
title = "Effective removal of the heavy metal ion Cd2+ from the structure of cementitious materials with mineral additives",
pages = "24-19",
volume = "23",
url = "https://hdl.handle.net/21.15107/rcub_rims_488"
}
Mijatović, N., Terzić, A.,& Miličić, L.. (2023). Effective removal of the heavy metal ion Cd2+ from the structure of cementitious materials with mineral additives. in Structural Integrity and Life, Special Issue, 23, 19-24.
https://hdl.handle.net/21.15107/rcub_rims_488
Mijatović N, Terzić A, Miličić L. Effective removal of the heavy metal ion Cd2+ from the structure of cementitious materials with mineral additives. in Structural Integrity and Life, Special Issue. 2023;23:19-24.
https://hdl.handle.net/21.15107/rcub_rims_488 .
Mijatović, Nevenka, Terzić, Anja, Miličić, Ljiljana, "Effective removal of the heavy metal ion Cd2+ from the structure of cementitious materials with mineral additives" in Structural Integrity and Life, Special Issue, 23 (2023):19-24,
https://hdl.handle.net/21.15107/rcub_rims_488 .

Biomimetics Design of Tooth Root Zone at Cylindrical Gears Profile

Atanasovska, Ivana; Momčilović, Dejan; Lazović, Tatjana; Marinković, Aleksandar; Soldat, Nataša

(2023)

TY  - JOUR
AU  - Atanasovska, Ivana
AU  - Momčilović, Dejan
AU  - Lazović, Tatjana
AU  - Marinković, Aleksandar
AU  - Soldat, Nataša
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/538
AB  - During the last few decades, the requirements for modern machine elements in terms of size
reduction, increasing the energy efficiency, and a higher load capacity of standard and non-standard
gears have been very prevalent issues. Within these demands, the main goals are the optimization
of the gears’ tooth profiles, as well as the investigation of new tooth profile designs. The presented
design idea is based on the optimal solutions inspired by nature. Special attention is paid to the new
design of the tooth root zones of spur gears in order to decrease the stress concentration values and
increase the tooth root fatigue resistance. The finite element method is used for stress and strain
state calculations, and the particular gear pair is modeled and optimized for these purposes. For
tooth root strength analysis, the estimations are based on the theory of critical distances and the
stress gradients obtained through finite element analysis. The obtained stress gradients have shown
important improvements in the stress distribution in the transition zone optimized by biomimetics.
An analysis of the material variation influence is also performed. Based on the investigations of a
particular gear pair, a significant stress reduction of about 7% for steel gears and about 10.3% for cast iron gears is obtained for tooth roots optimized by bio-inspired design.
T2  - Biomimetics
T1  - Biomimetics Design of Tooth Root Zone at Cylindrical Gears Profile
IS  - 3
VL  - 8
DO  - 10.3390/biomimetics8030308
ER  - 
@article{
author = "Atanasovska, Ivana and Momčilović, Dejan and Lazović, Tatjana and Marinković, Aleksandar and Soldat, Nataša",
year = "2023",
abstract = "During the last few decades, the requirements for modern machine elements in terms of size
reduction, increasing the energy efficiency, and a higher load capacity of standard and non-standard
gears have been very prevalent issues. Within these demands, the main goals are the optimization
of the gears’ tooth profiles, as well as the investigation of new tooth profile designs. The presented
design idea is based on the optimal solutions inspired by nature. Special attention is paid to the new
design of the tooth root zones of spur gears in order to decrease the stress concentration values and
increase the tooth root fatigue resistance. The finite element method is used for stress and strain
state calculations, and the particular gear pair is modeled and optimized for these purposes. For
tooth root strength analysis, the estimations are based on the theory of critical distances and the
stress gradients obtained through finite element analysis. The obtained stress gradients have shown
important improvements in the stress distribution in the transition zone optimized by biomimetics.
An analysis of the material variation influence is also performed. Based on the investigations of a
particular gear pair, a significant stress reduction of about 7% for steel gears and about 10.3% for cast iron gears is obtained for tooth roots optimized by bio-inspired design.",
journal = "Biomimetics",
title = "Biomimetics Design of Tooth Root Zone at Cylindrical Gears Profile",
number = "3",
volume = "8",
doi = "10.3390/biomimetics8030308"
}
Atanasovska, I., Momčilović, D., Lazović, T., Marinković, A.,& Soldat, N.. (2023). Biomimetics Design of Tooth Root Zone at Cylindrical Gears Profile. in Biomimetics, 8(3).
https://doi.org/10.3390/biomimetics8030308
Atanasovska I, Momčilović D, Lazović T, Marinković A, Soldat N. Biomimetics Design of Tooth Root Zone at Cylindrical Gears Profile. in Biomimetics. 2023;8(3).
doi:10.3390/biomimetics8030308 .
Atanasovska, Ivana, Momčilović, Dejan, Lazović, Tatjana, Marinković, Aleksandar, Soldat, Nataša, "Biomimetics Design of Tooth Root Zone at Cylindrical Gears Profile" in Biomimetics, 8, no. 3 (2023),
https://doi.org/10.3390/biomimetics8030308 . .
1

Determination of the effects of the rebar-cement bond parameters variation in UHPFRC using FA and ANN

Bojović, Dragan; Terzić, Anja; Nikolić, Dragan; Janković, Ksenija

(2023)

TY  - JOUR
AU  - Bojović, Dragan
AU  - Terzić, Anja
AU  - Nikolić, Dragan
AU  - Janković, Ksenija
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/503
AB  - The experimental study included the design and production of ultra-high-performance steel fiber-reinforced concrete (UHPFRC). The physical and mechanical properties of UHPFRC were investigated in a laboratory setting. To investigate the properties of UHPFR concrete, three types of concrete and over 70 samples were used. Following that, samples were created to test the anchors' load-bearing performance. Six concrete slabs with a total of 108 pre-installed anchor samples and six concrete slabs with 108 post-installed chemical anchor samples were created. The analysis of the test findings comprised all individual results as well as the definition of the relationship between the anchor's tensile load capacity and other parameters. To accurately determine the individual influence of the investigated factors as well as their combined impact, a factorial experiment, and artificial neural networks were used in addition to normal statistical numerical studies. It was determined that both approaches offer advantages. The results obtained show matches in certain parts. Due to the way data is processed in different ways, there are also significant differences between them.
T2  - Science of Sintering 2023 OnLine-First Issue 00
T1  - Determination of the effects of the rebar-cement bond parameters variation in UHPFRC using FA and ANN
DO  - 10.2298/SOS230420029B
ER  - 
@article{
author = "Bojović, Dragan and Terzić, Anja and Nikolić, Dragan and Janković, Ksenija",
year = "2023",
abstract = "The experimental study included the design and production of ultra-high-performance steel fiber-reinforced concrete (UHPFRC). The physical and mechanical properties of UHPFRC were investigated in a laboratory setting. To investigate the properties of UHPFR concrete, three types of concrete and over 70 samples were used. Following that, samples were created to test the anchors' load-bearing performance. Six concrete slabs with a total of 108 pre-installed anchor samples and six concrete slabs with 108 post-installed chemical anchor samples were created. The analysis of the test findings comprised all individual results as well as the definition of the relationship between the anchor's tensile load capacity and other parameters. To accurately determine the individual influence of the investigated factors as well as their combined impact, a factorial experiment, and artificial neural networks were used in addition to normal statistical numerical studies. It was determined that both approaches offer advantages. The results obtained show matches in certain parts. Due to the way data is processed in different ways, there are also significant differences between them.",
journal = "Science of Sintering 2023 OnLine-First Issue 00",
title = "Determination of the effects of the rebar-cement bond parameters variation in UHPFRC using FA and ANN",
doi = "10.2298/SOS230420029B"
}
Bojović, D., Terzić, A., Nikolić, D.,& Janković, K.. (2023). Determination of the effects of the rebar-cement bond parameters variation in UHPFRC using FA and ANN. in Science of Sintering 2023 OnLine-First Issue 00.
https://doi.org/10.2298/SOS230420029B
Bojović D, Terzić A, Nikolić D, Janković K. Determination of the effects of the rebar-cement bond parameters variation in UHPFRC using FA and ANN. in Science of Sintering 2023 OnLine-First Issue 00. 2023;.
doi:10.2298/SOS230420029B .
Bojović, Dragan, Terzić, Anja, Nikolić, Dragan, Janković, Ksenija, "Determination of the effects of the rebar-cement bond parameters variation in UHPFRC using FA and ANN" in Science of Sintering 2023 OnLine-First Issue 00 (2023),
https://doi.org/10.2298/SOS230420029B . .

Application of coal combustion byproducts in self-compacting concrete: influence on flowability

Janković, Ksenija; Stojanović, Marko; Bojović, Dragan; Terzić, Anja; Stanković, Srboljub

(University of Belgrade, Technical Faculty in Bor, 2023)

TY  - CONF
AU  - Janković, Ksenija
AU  - Stojanović, Marko
AU  - Bojović, Dragan
AU  - Terzić, Anja
AU  - Stanković, Srboljub
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/502
AB  - Compared to traditional concrete, self-compacting concrete (SCC) demonstrates greater flowability, which is achieved by including an extra high percentage of ultra-fine particles. As a result, the required high paste content is obtained while the cement content is strictly limited. The coal combustion byproduct (fly ash) is one of the most efficient SCC fillers because it extends the lifecycle of SCC by improving its microstructural properties, strength, and durability. In this study, the amounts of fly ash in SCC compositions varied. The changes in physical and mechanical characteristics of fresh SCC samples related to variations in the water/binder ratio were monitored.
PB  - University of Belgrade, Technical Faculty in Bor
C3  - XI International Mineral Processing & Recycling Conference – IMPRC Proceedings
T1  - Application of coal combustion byproducts in self-compacting concrete: influence on flowability
EP  - 584
SP  - 579
UR  - https://hdl.handle.net/21.15107/rcub_rims_502
ER  - 
@conference{
author = "Janković, Ksenija and Stojanović, Marko and Bojović, Dragan and Terzić, Anja and Stanković, Srboljub",
year = "2023",
abstract = "Compared to traditional concrete, self-compacting concrete (SCC) demonstrates greater flowability, which is achieved by including an extra high percentage of ultra-fine particles. As a result, the required high paste content is obtained while the cement content is strictly limited. The coal combustion byproduct (fly ash) is one of the most efficient SCC fillers because it extends the lifecycle of SCC by improving its microstructural properties, strength, and durability. In this study, the amounts of fly ash in SCC compositions varied. The changes in physical and mechanical characteristics of fresh SCC samples related to variations in the water/binder ratio were monitored.",
publisher = "University of Belgrade, Technical Faculty in Bor",
journal = "XI International Mineral Processing & Recycling Conference – IMPRC Proceedings",
title = "Application of coal combustion byproducts in self-compacting concrete: influence on flowability",
pages = "584-579",
url = "https://hdl.handle.net/21.15107/rcub_rims_502"
}
Janković, K., Stojanović, M., Bojović, D., Terzić, A.,& Stanković, S.. (2023). Application of coal combustion byproducts in self-compacting concrete: influence on flowability. in XI International Mineral Processing & Recycling Conference – IMPRC Proceedings
University of Belgrade, Technical Faculty in Bor., 579-584.
https://hdl.handle.net/21.15107/rcub_rims_502
Janković K, Stojanović M, Bojović D, Terzić A, Stanković S. Application of coal combustion byproducts in self-compacting concrete: influence on flowability. in XI International Mineral Processing & Recycling Conference – IMPRC Proceedings. 2023;:579-584.
https://hdl.handle.net/21.15107/rcub_rims_502 .
Janković, Ksenija, Stojanović, Marko, Bojović, Dragan, Terzić, Anja, Stanković, Srboljub, "Application of coal combustion byproducts in self-compacting concrete: influence on flowability" in XI International Mineral Processing & Recycling Conference – IMPRC Proceedings (2023):579-584,
https://hdl.handle.net/21.15107/rcub_rims_502 .

The influence of the 2020 crisis on the demand for traditional and novel construction and building materials in Serbia

Vasić, Milica; Živković, Slavica; Trivunić, Milan

(Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, 2023)

TY  - JOUR
AU  - Vasić, Milica
AU  - Živković, Slavica
AU  - Trivunić, Milan
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/501
AB  - Even though the specific COVID-19 consequences for sales have been extensively
discussed, no academic research has been done on how the pandemic has affected
consumer choice and purchases of construction and building products by private
individuals. This research was conducted to fill in the gaps in the body of knowledge
and advance understanding of how the crisis has impacted wages, market prices,
and material usage in the construction industry in a developing country. The data
are collected through the use of a questionnaire survey. The respondents shared
their experiences between the period before 2020 and after the beginning of the
crisis up until the end of 2022 and showed that purchases of these products
decreased during the lockdown and afterward. The obtained results were analyzed
using statistical tools, namely frequencies, descriptive statistics, and constructs.
This study reveals a high interest in using novel materials but also a desire to be
more informed on the details and their potential benefits. The results present a first of-
a-kind approach that will help further development in this branch of the industry
by following the needs of potential private customers in a developing country.
Further studies would need to include not only contextual but also personal factors
that influence environmentally friendly choices.
PB  - Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije
T2  - Građevinski materijali i konstrukcije / Building Materials and Structures
T1  - The influence of the 2020 crisis on the demand for traditional and novel construction and building materials in Serbia
VL  - 66
DO  - 10.5937/GRMK2300007V
ER  - 
@article{
author = "Vasić, Milica and Živković, Slavica and Trivunić, Milan",
year = "2023",
abstract = "Even though the specific COVID-19 consequences for sales have been extensively
discussed, no academic research has been done on how the pandemic has affected
consumer choice and purchases of construction and building products by private
individuals. This research was conducted to fill in the gaps in the body of knowledge
and advance understanding of how the crisis has impacted wages, market prices,
and material usage in the construction industry in a developing country. The data
are collected through the use of a questionnaire survey. The respondents shared
their experiences between the period before 2020 and after the beginning of the
crisis up until the end of 2022 and showed that purchases of these products
decreased during the lockdown and afterward. The obtained results were analyzed
using statistical tools, namely frequencies, descriptive statistics, and constructs.
This study reveals a high interest in using novel materials but also a desire to be
more informed on the details and their potential benefits. The results present a first of-
a-kind approach that will help further development in this branch of the industry
by following the needs of potential private customers in a developing country.
Further studies would need to include not only contextual but also personal factors
that influence environmentally friendly choices.",
publisher = "Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije",
journal = "Građevinski materijali i konstrukcije / Building Materials and Structures",
title = "The influence of the 2020 crisis on the demand for traditional and novel construction and building materials in Serbia",
volume = "66",
doi = "10.5937/GRMK2300007V"
}
Vasić, M., Živković, S.,& Trivunić, M.. (2023). The influence of the 2020 crisis on the demand for traditional and novel construction and building materials in Serbia. in Građevinski materijali i konstrukcije / Building Materials and Structures
Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije., 66.
https://doi.org/10.5937/GRMK2300007V
Vasić M, Živković S, Trivunić M. The influence of the 2020 crisis on the demand for traditional and novel construction and building materials in Serbia. in Građevinski materijali i konstrukcije / Building Materials and Structures. 2023;66.
doi:10.5937/GRMK2300007V .
Vasić, Milica, Živković, Slavica, Trivunić, Milan, "The influence of the 2020 crisis on the demand for traditional and novel construction and building materials in Serbia" in Građevinski materijali i konstrukcije / Building Materials and Structures, 66 (2023),
https://doi.org/10.5937/GRMK2300007V . .

Assessing technological properties and environmental impact of fired bricks made by partially adding bottom ash from an industrial approach

Munoz, Pedro; Letelier, Viviana; Munoz, Luis; Gencel, Osman; Sutcu, Mucahit; Vasić, Milica

(Elsevier Ltd, 2023)

TY  - JOUR
AU  - Munoz, Pedro
AU  - Letelier, Viviana
AU  - Munoz, Luis
AU  - Gencel, Osman
AU  - Sutcu, Mucahit
AU  - Vasić, Milica
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/500
AB  - Over the past few decades, the fired clay brick industry has searched for industrial wastes to substitute raw clay deposits and lessen their impact on the environment. Despite several investigations showing positive results, industrial applicability is still scarce, mainly due to differences between industrial and laboratory procedures and the usage of certain wastes that already have added value in other circular economy chains. In addition, the assessment of such proposals commonly misses the environmental impact issue which is merely assumed to be positive. For these reasons this study, for the first time, has assessed together technological properties and the environmental impact of bricks made by strictly following industrial procedures. Hence, biomass bottom ash (BBA) was added at 9 replacement ratios, ranging from 2.5 to wt. 20.0% for making extruded bricks subjected to industrial drying and firing curves. Physical, thermal and mechanical properties of fired products were properly assessed and compared with the requirements set forth by Chilean standards. In addition, a life cycle impact assessment was developed to compare the ecological footprint among series. Although mechanical and water-proof requirements may limit the replacement ratio for exposed bricks, the feasibility of using BBA at industrial scale has been successfully demonstrated. Regarding the environmental impact, the raw clay may be replaced without adversely causing toxicity levels to exceed mandatory limits. However, this study demonstrated that the incorporation of BBA increases CO2 emissions due to the decomposition of contained carbonates during the firing process which compromise the results in terms of global warming potential and water consumption which highly impact on human health and ecosystems quality.
PB  - Elsevier Ltd
T2  - Construction and Building Materials
T1  - Assessing technological properties and environmental impact of fired bricks made by partially adding bottom ash from an industrial approach
VL  - 396
DO  - 10.1016/j.conbuildmat.2023.132338
ER  - 
@article{
author = "Munoz, Pedro and Letelier, Viviana and Munoz, Luis and Gencel, Osman and Sutcu, Mucahit and Vasić, Milica",
year = "2023",
abstract = "Over the past few decades, the fired clay brick industry has searched for industrial wastes to substitute raw clay deposits and lessen their impact on the environment. Despite several investigations showing positive results, industrial applicability is still scarce, mainly due to differences between industrial and laboratory procedures and the usage of certain wastes that already have added value in other circular economy chains. In addition, the assessment of such proposals commonly misses the environmental impact issue which is merely assumed to be positive. For these reasons this study, for the first time, has assessed together technological properties and the environmental impact of bricks made by strictly following industrial procedures. Hence, biomass bottom ash (BBA) was added at 9 replacement ratios, ranging from 2.5 to wt. 20.0% for making extruded bricks subjected to industrial drying and firing curves. Physical, thermal and mechanical properties of fired products were properly assessed and compared with the requirements set forth by Chilean standards. In addition, a life cycle impact assessment was developed to compare the ecological footprint among series. Although mechanical and water-proof requirements may limit the replacement ratio for exposed bricks, the feasibility of using BBA at industrial scale has been successfully demonstrated. Regarding the environmental impact, the raw clay may be replaced without adversely causing toxicity levels to exceed mandatory limits. However, this study demonstrated that the incorporation of BBA increases CO2 emissions due to the decomposition of contained carbonates during the firing process which compromise the results in terms of global warming potential and water consumption which highly impact on human health and ecosystems quality.",
publisher = "Elsevier Ltd",
journal = "Construction and Building Materials",
title = "Assessing technological properties and environmental impact of fired bricks made by partially adding bottom ash from an industrial approach",
volume = "396",
doi = "10.1016/j.conbuildmat.2023.132338"
}
Munoz, P., Letelier, V., Munoz, L., Gencel, O., Sutcu, M.,& Vasić, M.. (2023). Assessing technological properties and environmental impact of fired bricks made by partially adding bottom ash from an industrial approach. in Construction and Building Materials
Elsevier Ltd., 396.
https://doi.org/10.1016/j.conbuildmat.2023.132338
Munoz P, Letelier V, Munoz L, Gencel O, Sutcu M, Vasić M. Assessing technological properties and environmental impact of fired bricks made by partially adding bottom ash from an industrial approach. in Construction and Building Materials. 2023;396.
doi:10.1016/j.conbuildmat.2023.132338 .
Munoz, Pedro, Letelier, Viviana, Munoz, Luis, Gencel, Osman, Sutcu, Mucahit, Vasić, Milica, "Assessing technological properties and environmental impact of fired bricks made by partially adding bottom ash from an industrial approach" in Construction and Building Materials, 396 (2023),
https://doi.org/10.1016/j.conbuildmat.2023.132338 . .
1
4

Raw Kaolinitic Clays from Serbia and their Potential in the Production of Extruded Ceramic Tiles

Vasić, Milica; Radojević, Zagorka

(2023)

TY  - JOUR
AU  - Vasić, Milica
AU  - Radojević, Zagorka
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/486
AB  - The present study analyses the usage possibility of the 7
raw kaolinitic clays from Serbia. The characterization of
raw materials is done by using instrumental techniques to
determine chemical and mineralogical compositions, particle
size distribution and behavior during firing (changes in
mass, temperature of the system and dimensions). Additionally,
refractoriness is determined for each of the materials.
The samples are shaped by the extrusion process and fired
in a 1000-1250 °C range. The ceramic and technological
characteristics of the fired samples are determined, and
micromorphology is recorded. It is concluded that most of
the tested clays can be used to produce cream-colored
extruded ceramic tiles with water absorption between 0.20
and 5.28 % by firing at 1250 °C. The majority of the samples
can be used as ceramic tiles for flooring purposes after
firing at 1200 °C. Additionally, all samples are found suitable
for special purpose roofing tiles production after firing
at 1100 °C.
T2  - Structural Integrity and Life, Special Issue
T1  - Raw Kaolinitic Clays from Serbia and their Potential in the Production of Extruded Ceramic Tiles
EP  - 18
SP  - 13
VL  - 23
UR  - https://hdl.handle.net/21.15107/rcub_rims_486
ER  - 
@article{
author = "Vasić, Milica and Radojević, Zagorka",
year = "2023",
abstract = "The present study analyses the usage possibility of the 7
raw kaolinitic clays from Serbia. The characterization of
raw materials is done by using instrumental techniques to
determine chemical and mineralogical compositions, particle
size distribution and behavior during firing (changes in
mass, temperature of the system and dimensions). Additionally,
refractoriness is determined for each of the materials.
The samples are shaped by the extrusion process and fired
in a 1000-1250 °C range. The ceramic and technological
characteristics of the fired samples are determined, and
micromorphology is recorded. It is concluded that most of
the tested clays can be used to produce cream-colored
extruded ceramic tiles with water absorption between 0.20
and 5.28 % by firing at 1250 °C. The majority of the samples
can be used as ceramic tiles for flooring purposes after
firing at 1200 °C. Additionally, all samples are found suitable
for special purpose roofing tiles production after firing
at 1100 °C.",
journal = "Structural Integrity and Life, Special Issue",
title = "Raw Kaolinitic Clays from Serbia and their Potential in the Production of Extruded Ceramic Tiles",
pages = "18-13",
volume = "23",
url = "https://hdl.handle.net/21.15107/rcub_rims_486"
}
Vasić, M.,& Radojević, Z.. (2023). Raw Kaolinitic Clays from Serbia and their Potential in the Production of Extruded Ceramic Tiles. in Structural Integrity and Life, Special Issue, 23, 13-18.
https://hdl.handle.net/21.15107/rcub_rims_486
Vasić M, Radojević Z. Raw Kaolinitic Clays from Serbia and their Potential in the Production of Extruded Ceramic Tiles. in Structural Integrity and Life, Special Issue. 2023;23:13-18.
https://hdl.handle.net/21.15107/rcub_rims_486 .
Vasić, Milica, Radojević, Zagorka, "Raw Kaolinitic Clays from Serbia and their Potential in the Production of Extruded Ceramic Tiles" in Structural Integrity and Life, Special Issue, 23 (2023):13-18,
https://hdl.handle.net/21.15107/rcub_rims_486 .

Application of pyrophyllite in high-temperature treated building materials

Terzić, Anja; Vasić, Milica; Stojanović, Jovica; Pavlović, Vladimir; Radojević, Zagorka

(2023)

TY  - JOUR
AU  - Terzić, Anja
AU  - Vasić, Milica
AU  - Stojanović, Jovica
AU  - Pavlović, Vladimir
AU  - Radojević, Zagorka
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/485
AB  - Phyllosilicate mineral pyrophyllite is predominantly used in the ceramic industry because it exhibits high refractoriness. Due to its thermal transformation into mullite, pyrophyllite is stable at elevated temperatures, making it a suitable mineral additive for refractory non-shaped materials and various ceramic shaped products. In this study, pyrophyllite is employed as 50 % clay replacement in the ceramics and up to 30 % cement replacement in mortars. Physico-mechanical properties were investigated. The firing shrinkage in the ceramics treated at 1200°C was reduced by pyrophyllite addition. Pyrophyllite acted as additional pozzolana during cement hydration. Within the microstructure, it formed micro-reinforcement in the shape of crystalline folia, which improves the mechanical properties of ordinary Portland cement, high aluminate cement, and blended cement mortars. The investigation proved the efficiency and suitability of pyrophyllite employed as a substitution for clay in ceramics and a cement replacement in mortars.
T2  - Science of Sintering 2023 OnLine-First Issue 00
T1  - Application of pyrophyllite in high-temperature treated building materials
SP  - 14
DO  - 10.2298/SOS220610014T
ER  - 
@article{
author = "Terzić, Anja and Vasić, Milica and Stojanović, Jovica and Pavlović, Vladimir and Radojević, Zagorka",
year = "2023",
abstract = "Phyllosilicate mineral pyrophyllite is predominantly used in the ceramic industry because it exhibits high refractoriness. Due to its thermal transformation into mullite, pyrophyllite is stable at elevated temperatures, making it a suitable mineral additive for refractory non-shaped materials and various ceramic shaped products. In this study, pyrophyllite is employed as 50 % clay replacement in the ceramics and up to 30 % cement replacement in mortars. Physico-mechanical properties were investigated. The firing shrinkage in the ceramics treated at 1200°C was reduced by pyrophyllite addition. Pyrophyllite acted as additional pozzolana during cement hydration. Within the microstructure, it formed micro-reinforcement in the shape of crystalline folia, which improves the mechanical properties of ordinary Portland cement, high aluminate cement, and blended cement mortars. The investigation proved the efficiency and suitability of pyrophyllite employed as a substitution for clay in ceramics and a cement replacement in mortars.",
journal = "Science of Sintering 2023 OnLine-First Issue 00",
title = "Application of pyrophyllite in high-temperature treated building materials",
pages = "14",
doi = "10.2298/SOS220610014T"
}
Terzić, A., Vasić, M., Stojanović, J., Pavlović, V.,& Radojević, Z.. (2023). Application of pyrophyllite in high-temperature treated building materials. in Science of Sintering 2023 OnLine-First Issue 00, 14.
https://doi.org/10.2298/SOS220610014T
Terzić A, Vasić M, Stojanović J, Pavlović V, Radojević Z. Application of pyrophyllite in high-temperature treated building materials. in Science of Sintering 2023 OnLine-First Issue 00. 2023;:14.
doi:10.2298/SOS220610014T .
Terzić, Anja, Vasić, Milica, Stojanović, Jovica, Pavlović, Vladimir, Radojević, Zagorka, "Application of pyrophyllite in high-temperature treated building materials" in Science of Sintering 2023 OnLine-First Issue 00 (2023):14,
https://doi.org/10.2298/SOS220610014T . .

Proračun ugiba grednih struktura na osnovu izmerenih vrednosti dilatacija

Flajs, Željko; Janković, Ksenija; Stojanović, Marko; Bojović, Dragan

(2023)

TY  - JOUR
AU  - Flajs, Željko
AU  - Janković, Ksenija
AU  - Stojanović, Marko
AU  - Bojović, Dragan
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/495
AB  - Ponašanje struktura pod delovanjem različitih vrsta opterećenja
određene su njenim deformacionim karakteristikama,
globalnim deformacionim karakteristikama – pomeranjima
i rotacijama i lokalnim deformacionim karakteristikama
- dilatacijama u materijalu strukture. Poznavanjem
globalnih i lokalnih deformacionih karakteristika strukture
ostvarujemo mogućnost da pratimo ponašanje strukture u
celini ili nekog njenog segmenta. Osnovni cilj ovog istraživanja
je provera algoritma proračuna za dobijanje vertikalnih
pomeranja - ugiba strukture, na osnovu poznatih vrednosti
dilatacija u materijalu strukture, pri delovanju opterećenja.
Provera algoritma sprovodi se poređenjem numeričkih i eksperimentalnih rezultata.
T2  - Integritet i vek konstrukcija, specijalno izdanje
T1  - Proračun ugiba grednih struktura na osnovu izmerenih vrednosti dilatacija
EP  - 78
SP  - 73
VL  - 23
UR  - https://hdl.handle.net/21.15107/rcub_rims_495
ER  - 
@article{
author = "Flajs, Željko and Janković, Ksenija and Stojanović, Marko and Bojović, Dragan",
year = "2023",
abstract = "Ponašanje struktura pod delovanjem različitih vrsta opterećenja
određene su njenim deformacionim karakteristikama,
globalnim deformacionim karakteristikama – pomeranjima
i rotacijama i lokalnim deformacionim karakteristikama
- dilatacijama u materijalu strukture. Poznavanjem
globalnih i lokalnih deformacionih karakteristika strukture
ostvarujemo mogućnost da pratimo ponašanje strukture u
celini ili nekog njenog segmenta. Osnovni cilj ovog istraživanja
je provera algoritma proračuna za dobijanje vertikalnih
pomeranja - ugiba strukture, na osnovu poznatih vrednosti
dilatacija u materijalu strukture, pri delovanju opterećenja.
Provera algoritma sprovodi se poređenjem numeričkih i eksperimentalnih rezultata.",
journal = "Integritet i vek konstrukcija, specijalno izdanje",
title = "Proračun ugiba grednih struktura na osnovu izmerenih vrednosti dilatacija",
pages = "78-73",
volume = "23",
url = "https://hdl.handle.net/21.15107/rcub_rims_495"
}
Flajs, Ž., Janković, K., Stojanović, M.,& Bojović, D.. (2023). Proračun ugiba grednih struktura na osnovu izmerenih vrednosti dilatacija. in Integritet i vek konstrukcija, specijalno izdanje, 23, 73-78.
https://hdl.handle.net/21.15107/rcub_rims_495
Flajs Ž, Janković K, Stojanović M, Bojović D. Proračun ugiba grednih struktura na osnovu izmerenih vrednosti dilatacija. in Integritet i vek konstrukcija, specijalno izdanje. 2023;23:73-78.
https://hdl.handle.net/21.15107/rcub_rims_495 .
Flajs, Željko, Janković, Ksenija, Stojanović, Marko, Bojović, Dragan, "Proračun ugiba grednih struktura na osnovu izmerenih vrednosti dilatacija" in Integritet i vek konstrukcija, specijalno izdanje, 23 (2023):73-78,
https://hdl.handle.net/21.15107/rcub_rims_495 .

Izbor komponentnih materijala za beton sa aspekta trajnosti

Janković, Ksenija; Bojović, Dragan; Stojanović, Marko

(2023)

TY  - JOUR
AU  - Janković, Ksenija
AU  - Bojović, Dragan
AU  - Stojanović, Marko
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/489
AB  - Betonske konstrukcije su često u eksploataciji izložene spoljašnjim uticajima. Preporuke koje definiše evropski stan-dard SRPS EN 206 za korišćenje betona u pojedinim klasa-ma izloženosti nisu dovoljne i iz tog razloga je usvojen i standard SRPS U.M1.206 koji predstavlja nacionalni doda-tak za njegovu primenu. Dejstvo mraza značajno utiče na trajnost betonske konstrukcije jer može da dovede do raza-ranja strukture betona. Zaštita se postiže dodavanjem hemij-skih dodataka koji uvlače vazduh u svež beton. U radu je prikazana mogućnost primene novog dodatka Sika Aer Solid. Ispitivana je otpornost betona na dejstvo mraza, mraza u prisustvu soli za odmrzavanje, prodiranje vode pod pritiskom i koeficijent migracije hlorida u laboratorijskim uslovima i uzorcima izvađenim iz betonskih prefabrikovanih elemenata. Betoni sa Sika Aer Solid su za istu klasu konzistencije u odnosu na aerirane betone imali bolja svojstva i u svežem i u očvrslom stanju.
T2  - Integritet i vek konstrukcija
T1  - Izbor komponentnih materijala za beton sa aspekta trajnosti
EP  - 34
SP  - 25
VL  - 23
UR  - https://hdl.handle.net/21.15107/rcub_rims_489
ER  - 
@article{
author = "Janković, Ksenija and Bojović, Dragan and Stojanović, Marko",
year = "2023",
abstract = "Betonske konstrukcije su često u eksploataciji izložene spoljašnjim uticajima. Preporuke koje definiše evropski stan-dard SRPS EN 206 za korišćenje betona u pojedinim klasa-ma izloženosti nisu dovoljne i iz tog razloga je usvojen i standard SRPS U.M1.206 koji predstavlja nacionalni doda-tak za njegovu primenu. Dejstvo mraza značajno utiče na trajnost betonske konstrukcije jer može da dovede do raza-ranja strukture betona. Zaštita se postiže dodavanjem hemij-skih dodataka koji uvlače vazduh u svež beton. U radu je prikazana mogućnost primene novog dodatka Sika Aer Solid. Ispitivana je otpornost betona na dejstvo mraza, mraza u prisustvu soli za odmrzavanje, prodiranje vode pod pritiskom i koeficijent migracije hlorida u laboratorijskim uslovima i uzorcima izvađenim iz betonskih prefabrikovanih elemenata. Betoni sa Sika Aer Solid su za istu klasu konzistencije u odnosu na aerirane betone imali bolja svojstva i u svežem i u očvrslom stanju.",
journal = "Integritet i vek konstrukcija",
title = "Izbor komponentnih materijala za beton sa aspekta trajnosti",
pages = "34-25",
volume = "23",
url = "https://hdl.handle.net/21.15107/rcub_rims_489"
}
Janković, K., Bojović, D.,& Stojanović, M.. (2023). Izbor komponentnih materijala za beton sa aspekta trajnosti. in Integritet i vek konstrukcija, 23, 25-34.
https://hdl.handle.net/21.15107/rcub_rims_489
Janković K, Bojović D, Stojanović M. Izbor komponentnih materijala za beton sa aspekta trajnosti. in Integritet i vek konstrukcija. 2023;23:25-34.
https://hdl.handle.net/21.15107/rcub_rims_489 .
Janković, Ksenija, Bojović, Dragan, Stojanović, Marko, "Izbor komponentnih materijala za beton sa aspekta trajnosti" in Integritet i vek konstrukcija, 23 (2023):25-34,
https://hdl.handle.net/21.15107/rcub_rims_489 .

Influence of Temperature on Impact Toughness of HSLA Steels

Bulatović, Srđan; Aleksić, Vujadin; Mladenović, Mladen

(2023)

TY  - JOUR
AU  - Bulatović, Srđan
AU  - Aleksić, Vujadin
AU  - Mladenović, Mladen
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/498
AB  - The aim of this paper is to present the influence of differ-ent temperatures on the impact toughness of welded joint of high strength low-alloy steel. The results of impact tests for all three constituents of the manual arc welded joint of NN-70 steel at temperatures range from 20 °C to -100 °C are presented. It has been shown that impact tests of high-strength low-alloy (HSLA) steels at room and lower tem-peratures indicate that temperature significantly affects the toughness of high-strength low-alloy steels in the context that lowering the test temperature leads to creation of brittle fracture in the form of a successive decrease in total impact energy. This indicator is very important in the further design and exploitation of welded steel structures.
T2  - Structural Integrity and Life, Special Issue
T1  - Influence of Temperature on Impact Toughness of HSLA Steels
EP  - 94
SP  - 91
VL  - 23
UR  - https://hdl.handle.net/21.15107/rcub_rims_498
ER  - 
@article{
author = "Bulatović, Srđan and Aleksić, Vujadin and Mladenović, Mladen",
year = "2023",
abstract = "The aim of this paper is to present the influence of differ-ent temperatures on the impact toughness of welded joint of high strength low-alloy steel. The results of impact tests for all three constituents of the manual arc welded joint of NN-70 steel at temperatures range from 20 °C to -100 °C are presented. It has been shown that impact tests of high-strength low-alloy (HSLA) steels at room and lower tem-peratures indicate that temperature significantly affects the toughness of high-strength low-alloy steels in the context that lowering the test temperature leads to creation of brittle fracture in the form of a successive decrease in total impact energy. This indicator is very important in the further design and exploitation of welded steel structures.",
journal = "Structural Integrity and Life, Special Issue",
title = "Influence of Temperature on Impact Toughness of HSLA Steels",
pages = "94-91",
volume = "23",
url = "https://hdl.handle.net/21.15107/rcub_rims_498"
}
Bulatović, S., Aleksić, V.,& Mladenović, M.. (2023). Influence of Temperature on Impact Toughness of HSLA Steels. in Structural Integrity and Life, Special Issue, 23, 91-94.
https://hdl.handle.net/21.15107/rcub_rims_498
Bulatović S, Aleksić V, Mladenović M. Influence of Temperature on Impact Toughness of HSLA Steels. in Structural Integrity and Life, Special Issue. 2023;23:91-94.
https://hdl.handle.net/21.15107/rcub_rims_498 .
Bulatović, Srđan, Aleksić, Vujadin, Mladenović, Mladen, "Influence of Temperature on Impact Toughness of HSLA Steels" in Structural Integrity and Life, Special Issue, 23 (2023):91-94,
https://hdl.handle.net/21.15107/rcub_rims_498 .

Application of Artificial Neural Networks in Performance Prediction of Cement Mortars with Various Mineral Additives

Terzić, Anja; Pezo, Milada; Pezo, Lato

(2023)

TY  - JOUR
AU  - Terzić, Anja
AU  - Pezo, Milada
AU  - Pezo, Lato
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/499
AB  - The machine learning technique for prediction and optimization of building material performances became an essential feature in the contemporary civil engineering. The Artificial Neural Network (ANN) prognosis of mortar behavior was conducted in this study. The model appraised the design and characteristics of seventeen either building or high-temperature mortars. Seven different cement types were employed. Seventeen mineral additives of primary and secondary origin were embedded in the mortar mixtures. Cluster Analysis and Principal Component Analysis designated groups of similar mortars assigning them a specific purpose based on monitored characteristics. ANN foresaw the quality of designed mortars. The impact of implemented raw materials on the mortar quality was assessed and evaluated. ANN outputs highlighted the high suitability level of anticipation, i.e., 0.999 during the training period, which is regarded appropriate enough to correctly predict the observed outputs in a wide range of processing parameters. Due to the high predictive accuracy, ANN can replace or be used in combination with standard destructive tests thereby saving the construction industry time, resources, and capital. Good performances of altered cement mortars are positive sign for widening of economical mineral additives application in building materials and making progress towards achieved carbon neutrality by reducing its emission.
T2  - Science of Sintering
T1  - Application of Artificial Neural Networks in Performance Prediction of Cement Mortars with Various Mineral Additives
EP  - 27
IS  - 1
SP  - 11
VL  - 55
DO  - 10.2298/SOS2301011T
ER  - 
@article{
author = "Terzić, Anja and Pezo, Milada and Pezo, Lato",
year = "2023",
abstract = "The machine learning technique for prediction and optimization of building material performances became an essential feature in the contemporary civil engineering. The Artificial Neural Network (ANN) prognosis of mortar behavior was conducted in this study. The model appraised the design and characteristics of seventeen either building or high-temperature mortars. Seven different cement types were employed. Seventeen mineral additives of primary and secondary origin were embedded in the mortar mixtures. Cluster Analysis and Principal Component Analysis designated groups of similar mortars assigning them a specific purpose based on monitored characteristics. ANN foresaw the quality of designed mortars. The impact of implemented raw materials on the mortar quality was assessed and evaluated. ANN outputs highlighted the high suitability level of anticipation, i.e., 0.999 during the training period, which is regarded appropriate enough to correctly predict the observed outputs in a wide range of processing parameters. Due to the high predictive accuracy, ANN can replace or be used in combination with standard destructive tests thereby saving the construction industry time, resources, and capital. Good performances of altered cement mortars are positive sign for widening of economical mineral additives application in building materials and making progress towards achieved carbon neutrality by reducing its emission.",
journal = "Science of Sintering",
title = "Application of Artificial Neural Networks in Performance Prediction of Cement Mortars with Various Mineral Additives",
pages = "27-11",
number = "1",
volume = "55",
doi = "10.2298/SOS2301011T"
}
Terzić, A., Pezo, M.,& Pezo, L.. (2023). Application of Artificial Neural Networks in Performance Prediction of Cement Mortars with Various Mineral Additives. in Science of Sintering, 55(1), 11-27.
https://doi.org/10.2298/SOS2301011T
Terzić A, Pezo M, Pezo L. Application of Artificial Neural Networks in Performance Prediction of Cement Mortars with Various Mineral Additives. in Science of Sintering. 2023;55(1):11-27.
doi:10.2298/SOS2301011T .
Terzić, Anja, Pezo, Milada, Pezo, Lato, "Application of Artificial Neural Networks in Performance Prediction of Cement Mortars with Various Mineral Additives" in Science of Sintering, 55, no. 1 (2023):11-27,
https://doi.org/10.2298/SOS2301011T . .