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Abstract To use glass solid waste materials effectively, waste glass powder was used as cement admixture to prepare waste glass powder concrete (WGPC). The principle of replacing cement with waste glass powder was analyzed through mechanical properties test of WGPC. Based on the failure mechanism of WGPC, the variation rules of each mechanical properties were discussed. The random damage constitutive relationship was compared with the segmented constitutive relationship to discuss the stress-strain constitutive relationship of WGPC. Deformation properties such as damage evolution and brittleness index of the WGPC were also analyzed. The test results indicated that: with the increase of the substitution rate, the brittleness index of the WGPC will decrease slightly, and the reduction of its cubic compressive strength and axial compressive strength was larger than that of the elastic modulus and splitting tensile strength. The initial damage stage of the WGPC will last shorter, and the crack growth rate was relatively stable, especially in strain of 1×10-3~6×10-3. The calculation results of the segmental constitutive relationship and the random damage constitutive relationship were consistent with the experimental results. Instead of cement, waste glass powder possesses a good application prospect in concrete materials.
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Received: 07 May 2022
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2022, Vol. 35 
