水泥稳定碎石基层材料干缩及影响因素分析  

Research on Dry Shrinkage Deformation Properties of Cement-Stabilized Macadam Base Course Materials

作　　者：孙兆辉[1] 许志鸿[1] 王铁斌[2] 曹卫东[1] 

机构地区：[1]同济大学道路与交通工程教育部重点试验室,上海200092 [2]辽宁省交通高等专科学校道路与桥梁工程系,辽宁沈阳110122

出　　处：《建筑材料学报》2006年第2期166-171,共6页Journal of Building Materials

摘　　要：针对水泥稳定碎石基层在湿度变化时易产生干缩裂缝的缺陷,进行了一次和二次循环干燥收缩试验,对水泥稳定碎石基层材料的干缩变形特性及影响因素进行了分析研究,为完善水泥稳定碎石基层材料的级配组成,改善其收缩性能,减少其干缩量奠定了基础.The paper deals with the problem of cracking of cement-stabilized macadam base course,coming forth easily under the condition of moisture changing in the south area of Suzhou. Ohe and two cycles experiments of dry shrinkage were done. Dry shrinkage deformation properlies of cement-stabilized macadam and influencing factors were analyzed. Test result offers foundation for improving the gradation composition of cement-stabilized macadam, improving its shrinkage properties.

关 键 词：水泥稳定碎石 级配组成 干燥收缩 干缩应变 失水率 

分 类 号：TU521.25[建筑科学—建筑技术科学]