环境污染对水泥土力学性能影响的试验研究

Effect of Environmental Pollution on Mechanical Property of Cemented Soil

分别采取清水、生活污水和造纸厂污水与水泥和土搅拌形成水泥土,测试了各种水泥土试块在不同龄期下的无侧限抗压强度.通过分析水泥土的应力-应变曲线,认为生活污水和造纸厂污水没有改变水泥土的弹塑性本质.试验结果表明:水泥土试块的强度均随着龄期的增加而增大,且清水试块强度最高;与清水试块比较,生活污水试块和造纸厂污水试块强度变化率均随着龄期的增长而增大,二者具有类似的劣化规律.

Taking pure water, industrial wastewater and household wastewater to manufacture cemented soil blocks respectively, their unconfined compressive strengths were measured. Compared the σ-ε curves, the conclusion was drawn that the elastic-plastic character of cemented soil was not changed by industrial wastewater and household wastewater. The results show that their strengths are increasing with the increment of age time, among which the strengths of pure water are the highest. Compared with pure water block strength, the strength change rates of industrial wastewater and household wastewater blocks are increased with the increment of age time, but their degradation rules are similar.