Abstract:Currently, the most common treatment method of waste glass is landfill disposal, which both causes pollution to the environment and wastes resources. As a result, realizing the re-utilization of solid waste and recycling economy becomes the important parts of sustainable development strategy. To improve the utilization rate of waste glass, waste glass powder was taken to replace part of the cement in concrete as supplementary cementitious material, while waste glass was applied to replace part of the stone and river sand as coarse and fine aggregate. In this way, the effect of its compounding method on the compressive strength of recycled concrete could be studied, thus determining optimal blending method. After that, the mechanical properties of recycled concrete with waste glass were further studied by conducting different experiments, such as splitting tensile, anti-flexural and axial compressive tests. Simultaneously, the effect of waste glass on the high temperature resistance of concrete was also discussed in detail. According to the results, the compressive strength of recycled concrete reached the maximum value of 53.43 MPa with 0, 25% and 25% (mass ratio) of waste glass powder, waste glass coarse aggregate and waste glass fine aggregate respectively, and the splitting tensile strength was 8.52% higher than that of ordinary concrete, the flexural strength was 1.47% higher than that of ordinary concrete, and the axial compressive strength was 19.17% lower than that of ordinary concrete; the strength of recycled concrete retention rate decreased with the growing of heated temperature, and the incorporation of waste glass had a significant improvement on the strength preservation of concrete after high temperature from 500 ℃ to 900 ℃.