Effect of fly ash on the strength of porous concrete using recycled coarse aggregate to replace low-quality natural coarse aggregate

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Eva Arifi, Evi Nur Cahya, N. Christin Remayanti

2017 AIP Conference Proceedings Vol. 1887 Conference paper Cited by 8 Quartile

Abstract

The performance of porous concrete made of recycled coarse aggregate was investigated. Fly ash was used as cement partial replacement. In this study, the strength of recycled aggregate was coMPared to low quality natural coarse aggregate which has high water absorption. Compression strength and tensile splitting strength test were conducted to evaluate the performance of porous concrete using fly ash as cement replacement. Results have shown that the utilization of recycled coarse aggregate up to 75% to replace low quality natural coarse aggregate with high water absorption increases compressive strength and splitting tensile strength of porous concrete. Using fly ash up to 25% as cement replacement improves compressive strength and splitting tensile strength of porous concrete. © 2017 Author(s).

Affiliations

Civil Engineering Department, Brawijaya University, Malang, Indonesia; Water Resources Engineering Department, Brawijaya University, Malang, Indonesia