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Приказ резултата 11-20 од 452
Assessment of Efficiency of Rare Earth Elements Recovery from Lignite Coal Combustion Ash via Five-Stage Extraction
(Međunarodni Institut za nauku o sinterovanju, Beograd, 2021)
Rare earth elements (REE) are frequently referred to as ingredients for enhancements in modem industry, as they are extensively applied in many industrial branches due to their accented electro-magnetic and optical properties. ...
Study on the addition effect of metakaolin and mechanically activated kaolin on cement strength and microstructure under different curing conditions
(Elsevier Sci Ltd, Oxford, 2017)
The effects of thermally (MK) or mechanically activated kaolin (AK) on the compressive strength of mortars and microstructure of pastes were investigated. Mortar mixtures, in which 10%, 20% and 30% of ordinary Portland ...
Mechanically activated coal ash as refractory bauxite shotcrete microfiller: Thermal interactions mechanism investigation
(Elsevier Sci Ltd, Oxford, 2014)
A growing demand for refractory castables with advanced properties has given rise to a continuous technological evolution and highlighted the necessity for secondary raw materials reapplication even in refractory industry. ...
The influence of nano-silica and barite aggregate on properties of ultra high performance concrete
(Elsevier Sci Ltd, Oxford, 2016)
The development of building materials with improved characteristics and their application for increasing structure durability and sustainability is one of the goals in construction sector. The main objective of this paper ...
Methodological approach to recovery of the cracks on the turbine-shaft at hydroelectric power plant djerdap II
(Springer Netherlands, 2013)
In present paper, the methodological approach to analysis of the causes of failures and recovery of the damages has been presented using the example of the damage of the turbine-shafts construction. This approach can be ...
Experimental and Discrete Element Model Investigation of Limestone Aggregate Blending Process in Vertical Static and/or Conveyor Mixer for Application in the Concrete Mixture
(MDPI, Basel, 2021)
The numerical model of the granular flow within an aggregate mixture, conducted in the vertical static and/or the conveyor blender, was explored using the discrete element method (DEM) approach. The blending quality of ...
Procena ponašanja zavarenog spoja HSLA čelika opterećenog na zamor primenom parametara mehanike loma / Assessment of the behaviour of fatigue loaded HSLA steel welded joint by applying fracture mechanics parameters
(Institut za ispitivanje materijala, Beograd, 2012)
U zavarenim spojevima, sa gledišta mehanike loma, se pretpostavlja prisustvo prslina, gde se onda vek s obzirom na zamor takvih konstrukcija sa prslinama procenjuje vremenom rasta prsline pod promenljivim opterećenjem. ...
Određivanje koeficijenta prenosa toplote prilikom sušenja opekarskih proizvoda / Determination of the heat transfer coefficient during drying of heavy clay products
(Udruženje inženjera građevinarstva, geotehnike, arhitekture i urbanista "Izgradnja", Beograd, 2011)
Određivanje koeficijenata prenosa toplote prilikom sušenja opekarskih proizvoda izvršena su na uzorcima pločica od gline sa lokaliteta 'Banatski Karlovac' dimenzija (120 x 50 x 14 mm). Ispitivanja su sprovedena u laboratorijskoj ...
Nova ispitna metoda e za ispitivanje otpornosti prema mrazu crepova od gline - EN 539-2: 2009 / New testing method e for frost resistance determination of roofling clay tiles according to standard EN 539-2: 2009
(Udruženje inženjera građevinarstva, geotehnike, arhitekture i urbanista "Izgradnja", Beograd, 2011)
Ispitne metode za određivanje otpornosti crepova od gline prikazane u novom evropskom standardu EN 539-2 iz 2009 se veoma malo razlikuju od ispitnih metoda u postojećem važećem standardu EN 539-2 iz 2005 godine, sa izuzetkom ...
Transport and storage of heavy metals in the Sava River Basin in Serbia
(Srpsko hemijsko društvo, Beograd, 2014)
Selected heavy metals (Cu, Zn, Pb and Cd) in the water and sediment of the Sava River in Serbia were investigated from three locations in the vicinity of industrial and urban settlements (Sabac, Obrenovac and Belgrade) ...