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Prikaz rezultata 11-20 od 35
Evaluation of air content on concrete compressive strength with classical approach and neural networks
(Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd, 2012)
Mnogi parametri utiču na karakteristike svežeg i očvrslog betona. Jedan od najvažnijih svakako jeste poroznost betona. Poroznost svežeg betona meri se količinom uvučenog vazduha. Uticaj uvučenog vazduha na beton i njegovu ...
Uticaj polaznog stanja na osobine REL zavarenog spoja čelika 14mov 6 3 / Influence of initial state on properties of mma welded 14mov 6 3 steel
(DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd, 2012)
U radu je ispitan uticaj stanja osnovnog metala na osobine REL zavarenog spoja čelika 14MoV 6 3. Zavarene su tri kombinacije uzoraka: (i) nekorišćen; (ii) korišćen-korišćen; i (iii) korišćen nekorišćen. Korišćeni uzorci ...
Study on impact properties of creep-resistant steel thermally simulated heat affected zone
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2012)
The steam pipe line and steam line material, along with its welded joints, subject to damage that accumulates during operation in coal power plants. As a result of thermal fatigue, dilatation of steam pipe line at an ...
Dehydration investigations of a refractory concrete using DTA method
(Springer, Dordrecht, 2012)
The base mix refractory concrete is corundum-based, containing corundum as refractory aggregate and CAC as hydraulic binder, with a spinel as an additive. The authors investigated the dehydration reactions which occur from ...
Poređenje svojstava određenih nedestruktivnim metodama na betonima na bazi korunda sa i bez dodatka elektrofilterskog pepela / Comparison of properties of corundum based concretes with and without addition of fly ash determined by means of non-destructive methods
(Savez inženjera i tehničara Srbije, Beograd, 2012)
Analiza i određivanje svojstava betona u ovom radu izvršeni su pomoću nedestruktivnih metoda: metode brzine ultrazvuka i metode analize slike. Cilj istraživanja je bio da se utvrdi veza između procesa sinterovanja i konačnih ...
Procena troškova rehabilitacije i rekonstrukcije u sistemima za upravljanje održavanjem puteva / Model development for the preliminary cost estimates of road rehabilitation and reconstruction works
(Srpsko društvo za puteve VIA-VITA, Beograd, 2012)
Prosečni jedinični troškovi radova u projektima rekonstrukcije i rehabilitacije (RiR) puteva se značajno razlikuju među državama, ali i u okviru različitih projekata u istoj državi, i to usled mnogobrojnih faktora. U okviru ...
Process parameters influence on microstructural properties of hypereutectic al-18wt% Si alloys obtained by rheocasting process
(Editura Stiintifica Fmr, Bucharest, 2012)
Hypereutectic Al-18wt%Si alloy was obtained by conventional and rheocasting procedure at cooling rate 0.16 +/- 0.05 degrees Cs-1. Samples of rheocasted alloy were obtained at two stirring speeds 1000 and 1500 rpm. Tests ...
Response surface method as a tool for heavy clay firing process optimization: Roofing tiles
(Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad, 2012)
Heavy clay samples collected in close vicinity of Toplička Mala Plana, Serbia, were surveyed to examine their possible use in heavy clay industry. The representative raw material, which contained the lowest content of clay ...
Osnovni pojmovi kod postupka zavarivanja trenjem sa mešanjem prema AWS D17.3/D17.3M:2010 i ISO 25239-1: 2011 / Basic terms in friction stir welding according to AWS D17.3/D17.3M:2010 i ISO 25239-1: 2011
(DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd, 2012)
Zavarivanje trenjem sa mešanjem - ZTM (eng. Friction Stir Welding - FSW) je relativno mlad postupak zavarivanja u čvrstom stanju nastao na Institutu za zavarivanje (TWI) u Londonu, krajem 1991. godine. Prva primena ZTM ...
Concrete paving blocks and flags made with crushed brick as aggregate
(Construction and Building Materials, 2012)
Demolition of old buildings in urban cores has produced a large amount of waste material. Since they are mostly masonry structures the largest part of the waste material is ceramic waste. Besides that, ceramic waste is ...