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将废弃玻璃粉碎过筛后替代常规混凝土中的细集料（细集料替代率分别为25%、50%、75%和100%），探究室温条件下废玻璃混凝土的力学性能，并开展了冻融循环试验和高温煅烧试验，探讨其在两种不同温度条件下的耐久性能，结果表明，随着冻融循环次数和替代率的增加，常规混凝土的质量损失率低于含废弃玻璃集料的混凝土。其中，常规混凝土的质量损失率最低，而用玻璃完全替代细集料的混凝土的质量损失率最高。随着煅烧温度的升高（煅烧温度分别为200、400、600、800℃），普通混凝土的质量损失率高于含废弃玻璃集料的混凝土，且结果与冻融循环试验呈相反。同时，玻璃混凝土的抗压强度随着细集料替代率的增大、冻融循环次数的增多和煅烧温度的增加而降低，其强度衰减速度比常规混凝土更缓和，结果表明，在混凝土中掺入废弃玻璃作为细集料的替代品，可有效提高材料的抗冻融性能和耐高温性能，证明了其在两种不同温度环境下的应用潜力。
Abstract：The mechanical properties of waste glass concrete were investigated by replacing fine aggregates in conventional concrete by crushed and sieved waste glass(the replacement rates of fine aggregates were 25%, 50%, 75% and 100% respectively), and freeze-thaw cycling test and high temperature calcination test were carried out to investigate the durability of the waste glass concrete under two different temperature conditions. The test results show that with the increase of the number of freeze-thaw cycles and the substitution rate, the mass loss rate of the conventional concrete is lower than that of the concrete with waste glass aggregate, among which the mass loss rate of the conventional concrete is the lowest, and that of the concrete with the glass completely substituting the fine aggregate is the highest. With the increase of calcination temperature(200, 400,600 and 800℃ respectively), the mass loss rate of normal concrete was higher than that of concrete with waste glass aggregate, and the results were opposite to those of freeze-thaw cycle tests. Meanwhile, the compressive strength of glass concrete decreased with the increase of fine aggregate substitution rate, the increase of freeze-thaw cycles and the increase of calcination temperature, and its strength decay rate was more moderate than that of conventional concrete. This test result indicates that the incorporation of waste glass as a substitute for fine aggregate in concrete can effectively improve the freeze-than resistance and high temperature resistance of the material. The potential of its application in two different temperature environments was demonstrated.
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基本信息:
DOI：10.20203/j.cnki.2095-8919.2025.03.005
中图分类号:TU528
引用信息:
[1]李响,牛雷,赵自祺,等.废弃玻璃混凝土在冻融与高温条件下的力学性能研究[J].吉林建筑大学学报,2025,42(03):31-36.DOI:10.20203/j.cnki.2095-8919.2025.03.005.
基金信息:
吉林省科技厅重点研发项目(20220203063SF)
2025-06-15
2025-06-15