土凝岩稳定黏性土的路用性能研究

Research on Road Performance of Soil Curing Agent to Stabilize Clay

通过击实试验、无侧限抗压强度试验、水稳定性试验以及抗疲劳性能试验,验证土凝岩稳定黏性土的力学性能及耐久性。试验结果表明:土壤固化剂稳定黏性土的最佳含水率随土壤固化剂掺量的增加而增加。土壤固化剂稳定黏性土的7d无侧限抗压强度均随着固化剂掺量的增加而增加。水稳定性试验表明土凝岩稳定黏性土的早期水稳定性系数略优于水泥稳定黏性土,水化后期两种土壤固化剂稳定黏性土的水稳定系数相当。抗疲劳性能试验表明土凝岩稳定黏性土的劈裂强度和经100次循环载荷作用下的劈裂强度比水泥稳定黏性土分别提高10.53%和15.1%,表现出优良的耐久性。

The mechanical properties and durability of the stabilized clay of soil curing agent are verified by compaction test,unconfined compressive strength test,water stability test and fatigue resistance test.The test results show that the optimum moisture content of soil curing agent stabilized clay increases with the increase of soil solidifying agent content.The 7 dunconfined compressive strength of the soil curing agent stabilized clay increases with the adding volume of the curing agent.The water stability test shows that the early water stability coefficient of the stabilized cohesive soil is slightly better than that of the cement stabilized clay.The water stability coefficient of the two clay stabilizers in the later stage of hydration is equivalent.The anti-fatigue performance test shows that the splitting strength of the stabilized clay soil of the soil condensate and the splitting strength under the 100-cycle load are 10.33%and 15.1%higher than that of the cement stabilized clay respectively.