一种新型软土固化剂及其固化机理研究  

Research on a New Type of Stabilizer and Its Stabilization Mechanism for Soft Soil

作　　者：李悦[1] 李学辉[1] 张务民[2] 潘凤文[3] 王立伟[2] 李战国[1] 

机构地区：[1]北京工业大学建筑工程学院,北京100124 [2]唐山市交通局,河北唐山063000 [3]唐山市公路技校,河北唐山063000

出　　处：《市政技术》2010年第4期142-144,共3页Journal of Municipal Technology

基　　金：河北省交通运输厅重点科技计划项目(Y-090117)

摘　　要：目前常用的土壤固化剂(如水泥)加固软土时存在强度低、水稳性能差等不足,因此自制一种包含胶凝组分、碱性组分及表面活性组分的软土固化剂固化软土,并测试了固化土无侧限抗压强度、劈裂强度、水稳性能,其结果均好于水泥和商品固化剂A,且通过对固化土微观结构的观察,初步探讨了其固化机理,并研究了固化剂自身强度对固化土强度的影响。When the soil is stabilized with common soil stabilizer （such as cement）, the strength of stabilized soil is low and the water-stable performance is poor. So in this paper a new type of stabilizer was prepared with cementitous component, alkaline component and surface-active component, and unconfined compressive strength, splitting strength and water-stable performance were tested, the results indicate the effect of which is better than that of cement and commercial stabilizer A. Through observation of microstructure of stabilized soil,the stabilization mechanism was discussed preliminary and the effect of the strength of stabilizer on the stabilized soil strength was studied.

关 键 词：软土 固化剂 无侧限抗压强度 劈裂强度 水稳系数 

分 类 号：TU447[建筑科学—岩土工程]