Research on the basic mechanical properties of high volume waste glass concrete under compression
The incorporation of waste glass into concrete helps to solve the problem of environmental pollution caused by direct landfill of waste glass,and has the effect of improving the performance of concrete.In the experiment,the waste glass particles with a particle size of 1 072 μm and waste glass powder with a particle size of 13 μm were selected to replace sand and cement in concrete in large a-mounts to prepare waste glass fine aggregate concrete and waste glass admixture concrete,and the flowability and compressive strength of the two types of concrete were tested to study the variation law and failure mode of the stress-strain relationship under uniaxial compression of waste glass con-crete.The failure process of two kinds of waste glass concrete prisms under compression is simulated by ABAQUS finite element software.The research results indicate that the flowability of both waste glass fine aggregate concrete and waste glass admixture concrete increases with the increase of substi-tution rate of waste glass.The mechanical properties of waste glass fine aggregate concrete reach their optimum when the waste glass substitution rate is 15%;as the substitution rate increases,the com-pressive performance of waste glass admixture concrete significantly weakens.The stress-strain rela-tionship curves of two types of concrete under uniaxial compression calculated by using the Zhenhai model are in good agreement with the experimental curves,and the uniaxial compression failure process of two waste glass concrete prisms is simulated by the finite element model.
concrete with large amount of waste glasscompression propertystress-strain curvefailure modenumerical simulation
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