Research on Compressive Performance of Eco-efficient Geopolymer Concrete
This paper comprehensively used recycled coarse aggregate,waste rubber and recycled steel fiber as coarse,fine aggregate and fiber reinforcement,respectively,and proposeda fly ash-slag-based eco-efficient geopolymer concrete(Eco-GC).The axial compressive proper-ties of Eco-GC with different recycled steel fiber content(1%,2%and 3%)and different rubber replacement ratios(5%,20%,35%and 50%)were studied.The effect of recycled steel fiber content and rubber replacement ratio on failure mode,compressive strength,peak strain and elastic modulus were analyzed.The results showed that the compressive strength,peak strain and elastic modulus of Eco-GC was increased with increasing recycled steel fiber content,but the compressive strength,peak strain and elastic modulus was decreased with the increase of rubber replacement ratio.
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