Original scientific paper

Steel slag as a valuable material for concrete production

Ivanka Netinger ; Sveučilište J. J. Strossmayera u Osijeku, Građevinski fakultet Osijek, Zavod za materijale i konstrukcije, Crkvena 21, 31 000 Osijek, Croatia
Marija Jelčić Rukavina ; Sveučilište u Zagrebu, Građevinski fakultet, Zavod za materijale, Kačićeva 26, 10000 Zagreb, Croatia
Marijana Serdar ; Sveučilište u Zagrebu, Građevinski fakultet, Zavod za materijale, Kačićeva 26, 10000 Zagreb, Croatia
Dubravka Bjegović ; Sveučilište u Zagrebu, Građevinski fakultet, Zavod za materijale, Kačićeva 26, 10000 Zagreb, Croatia

Abstract

This paper aims to investigate the possibility of utilizing steel slags locally produced in Croatian plants as a concrete aggregate. Therefore, eight concrete mixtures were prepared with coarse slag fractions and different binders whose hardened state properties (compressive strength, static modulus of elasticity, volume changes and corrosion susceptibility) were then compared with the properties of reference concrete made of commonly used natural aggregate materials, dolomite. According to the obtained test results it can be concluded that concrete containing slag possesses acceptable mechanical properties and volume changes for its structural use but could represent a risk in terms of corrosion of reinforcement in case of slag with higher amount of sulphur in its chemical composition.

Keywords

concrete; compressive strength; corrosion susceptibility; static modulus of elasticity; steel slag aggregate; volume changes; waste management

Hrčak ID:

129094

URI

https://hrcak.srce.hr/129094

Publication date:

29.10.2014.

Article data in other languages: croatian

Visits: 3.828 *