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环境污染导致地下水含有大量腐蚀性污染物,严重影响水泥土地基的强度和耐久性。将水泥土试块浸泡在不同浓度硫酸溶液中不同龄期模拟硫酸污染,通过测试水泥土电阻率、孔隙水电阻率以及无侧限抗压强度,来研究硫酸污染对水泥土电阻率特性的影响。研究表明,水泥土和孔隙水电阻率均随着浓度的增加而减小,均随着龄期的增加而增大;结构因子随着龄期和浓度的增加而增大;无侧限抗压强度随着水泥土电阻率的增加而增大。建立了预测任意溶液浓度和龄期的水泥土电阻率公式。
Environmental pollution causes groundwater to contain a large amount of corrosive pollutants, seriously affecting the strength and durability of the cement-soil foundation. The cement soil samples were soaked in different concentrations of sulfuric acid solution to simulate sulfuric acid pollution at different ages. The effects of sulfuric acid pollution on the resistivity of cement-soil were investigated by testing the resistivity of cement soil, pore water resistivity and unconfined compressive strength . The results showed that the resistivity of cement soil and pore water decreased with the increase of concentration, both increased with the increase of age. The structural factor increased with the increase of age and concentration. The unconfined compressive strength Strength increases with the resistivity of cement soil. A formula for predicting the resistivity of cement soil at any solution concentration and age was established.