高分子材料改良盐渍土的压缩性能试验研究

Experimental Research on Compressive Properties of Saline Soil Improved by Polymer Materials

盐渍土具有的盐胀性、溶陷性和腐蚀性等工程特性影响其作为路基填料的工程性能。利用新型亲水性丙烯酸酯共聚乳液对盐渍土进行改良,探讨固化条件对其压缩性能的影响。试验结果表明,与素盐渍土相比,新型亲水性丙烯酸酯共聚乳液可以较大程度地提高盐渍土的抵抗压缩变形的能力。固化盐渍土的压缩性随着共聚乳液掺量的增加而降低,随着养护龄期的增加而提高。

The behavior of saline soil used as subgrade filler is seriously affected by its salt expansion,collapsibility and corrosivity.This paper discusses the influences of the curing condition on the compressive properties of saline soil improved by being mixed with a new material,Methacrylate Copolymer Emulsion(ZM).The experimental results show that the improved saline soil,compared to the native one,to a large extent functions well in resisting deformation caused by compression.The compressibility of the cured saline soil is reduced with the increasing dosage of ZM,but rises with the increase of curing age.