滨海地区水泥改良盐渍土强度特性及其机理研究

从滨海地区盐渍土的工程应用角度出发,利用水泥对其进行改良。通过试验研究,分析探讨了改良盐渍土抗剪、抗压强度随改良剂含量、龄期、饱水条件的变化规律,并利用电镜对改良盐渍土的强度发展机理进行了研究。试验结果表明,滨海地区盐渍土经水泥固化处理后,其抗剪、抗压强度和水稳性能得到较大程度的提高,能用作公路路基填料。

Intensity Property and Mechanism of Cement-Modified Saline Soil in Coastal Area

In view of the engineering application of coastal saline soil,it is modified by cement.Through experiments,the rule of the change of shear strength and compressive strength of modified saline soil with the change of modifying agent content,age and water-saturated condition is analyzed,and the developing mechanism of modified saline soil is studied using electron microscope.The tests results show that the shear strength,compressive strength and water stability of modified saline soil solidified by cement are advanced obviously,which can be used as subgrade filler of highway.