Naslov
Concrete containing steel slag aggregate: performance after high temperature exposure

Autori
Netinger, Ivanka ; Jelčić Rukavina, Marija ; Bjegović, Dubravka ; Mladenovič, Ana

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Concrete Repair, Rehabilitation and Retrofitting III / Alexander, M. et al. - London : Delhi : Taylor & Francis, 2012, 1347-1352

ISBN
978-0-415-89952-9

Skup
Concrete Repair, Rehabilitation and Retrofitting III

Mjesto i datum
Cape Town, Južnoafrička Republika, 03.09.2012. - 05.09.2012

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
concrete aggregate ; electric arc furnace steel slag ; high temperature

Sažetak
Due to the fact that steel slags are made at the temperatures up to 1600°C, utilization in concretes with improved properties after the exposure to high temperatures is considered in this paper. An experimental program was designed and carried out to study properties of four steel slag based concrete mixtures with different types of cement pastes prior and after heating up to 800°C. Dolomite based concrete mixture was studied as a reference mixture. The results obtained have shown that residual mechanical properties of concrete made with steel slag aggregate are comparable to the reference dolomite concrete up to the tempera- ture of ca. 550°C, while at higher temperatures, steel slag exhibits mineral transformation followed by unstable volumetric expansion which reflected negatively on the residual properties of slag based concrete mixtures. This expansion become stable if the slag was previously heated up to 1000°C.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Temeljne tehničke znanosti

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