粉质土做公路底基层稳定方案及性能试验  

Stabilization Program and Performance Test of Silty Soil for Road Subbase

作　　者：舒玉[1] 严战友[1] 刘红峰 

机构地区：[1]石家庄铁道学院土木工程分院,河北石家庄050043 [2]中铁十七局集团第三工程有限公司,河北石家庄050043

出　　处：《石家庄铁道学院学报（自然科学版）》2009年第4期63-65,70,共4页Journal of Shijiazhuang Railway Institute

摘　　要：通过对粉性土这种特殊类型土用作高等级公路底基层,进行稳定方法研究,通过试验证明,在粉质土中一起加入石灰、粉煤灰、水泥等外加剂,除强度满足设计要求外,其温缩系数与干缩系数比单独加入其他外加剂是最小的,能够减少道路裂缝,延长道路使用寿命,从而为广大使用者提供参考。In this paper, the stabilizing method of silt soil used for high-grade highway-base is studied. Ex- periments show that, adding lime, fly ash, cement and other additives in the silty soil not only makes it meet the design requirements, but the temperature shrinkage coefficient and shrinkage coefficient is the smaller, which can reduce road cracks, extend the road life, and thus provides a reference for the users.

关 键 词：粉性土 路用性能 路面(底)基层 

分 类 号：U416[交通运输工程—道路与铁道工程]