Concrete containing steel slag aggregate: Performance after high temperature exposure

Author(s): I. Netinger, M. Jelčić Rukavina, D. Bjegović, A. Mladenovič
Paper category: Conference
Book title: Concrete Repair, Rehabilitation and Retrofitting III (ICCRRR)
Editor(s): M.G. Alexander, H.-D. Beushausen, F. Dehn, P. Moyo
Print ISBN: 978-0-415-89952-9
Publisher: Taylor & Francis Group
Pages: 482- 483
Total Pages: 2
Language: English

Abstract: 
Due to the fact that steel slags are made at the temperatures up to 1600°C, utilisation 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 temperature 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.

Online publication: 2014
Publication Type: abstract_only
Public price (Euros): 0.00