DAH改良剂与石灰混合溶液改良膨胀土的试验

Test for Expansive Soil Improved by Mixing DAH Amendment and Lime

为了研究DAH改良剂与石灰混合溶液改良膨胀土性能的效果,以广西水南路部分路段膨胀土为样本,将多种固化剂混合并采用不同剂量进行试验。通过对试验前后土样的胀缩性、击实特性、承载比和抗剪性能的分析,表明膨胀土的胀缩性显著降低,力学性质得到明显改善。

In order to study the expansive soil’s performances improved by mixing DAH amendment and lime,based on the soil sample from Shuina Road in Guangxi,a variety of curing agents are mixed and tested by using different dose.Through analysing the swell-shrink characteristics,compaction properties,bearing ratio and shear behavior about the sample,the tests show that the expansive soil’s swell-shrink characteristics have been significantly reduced,and the mechanical properties have been improved obviously.