摘要
为改善软弱地基力学性能,采用水泥掺量为16%,浮石粉掺量为8%,含水量分别为10%、15%、20%、25%的4组浮石粉水泥土试件进行三轴剪切试验,分析了不同含水量下浮石粉水泥土的力学性能。结果表明:随着含水量的增加,浮石粉水泥土的无侧限抗压强度呈抛物线形变化,试件含水量为15%时强度达到峰值,说明泥土中掺入8%的浮石粉加固含水量为15%左右的软弱地基效果最佳。
Take full advantage of local natural resource in order to improve the construction process of the soft sub-grade foundation status,with pumice powder cement soil specimens,had a different cement content,different pumice-volume of cement composite Triaxial shear test,further analysis on the cement of the mechanical properties of soil,by triaxial shear test different confining pressure cement composite soil stress-strain curve.Test results indicate that： With the increase in cement content,pumice powder cement shear strength increases,but after 16% of cement content,the rate of increase of shear strength reduction,consideration of economic factors in the premise there is an optimum cement content value of 16%.Pumice in cement powder can be improved by adding mechanical properties of cement,high early strength cement with pumice ash increased soil strength increases.
出处
《人民黄河》
CAS
北大核心
2011年第7期130-131,134,共3页
Yellow River
基金
国家自然科学基金资助项目(51069008)
内蒙古自治区高等学校科学研究项目(NJ09046)
关键词
三轴试验
抗压强度
含水量
天然浮石粉
水泥复合土
triaxial test
compression strength
water capacity
natural pumice powder
cement composite soil
