水泥稳定碎石收缩性能试验研究  

Research on shrinkage deformation properties of cement-stabilized macadam

作　　者：郑大为[1] 刘畅[1] 李翱翔[1] ZHENG Dawei LIU Chang LI Aoxiang(College of Civil Engineering and Transportation, Liaoning Technical University, Fuxin 123000, China)

机构地区：[1]辽宁工程技术大学土木与交通学院,辽宁阜新123000

出　　处：《辽宁工程技术大学学报（自然科学版）》2017年第3期292-296,共5页Journal of Liaoning Technical University (Natural Science)

摘　　要：为研究不同水泥掺量水泥稳定碎石收缩性的问题,通过对3%、4%和4.5%(质量分数)3种剂量的水泥稳定碎石进行干缩、温缩室内试验,得到不同水泥掺量水泥稳定碎石的干缩系数、温缩系数和含水率随时间的变化曲线.研究结果表明:水泥掺量是影响基层材料收缩性能的主要因素;水分和温度的控制也能减少收缩,抑制反射裂缝.该结果为防治反射裂缝的研究提供依据.In order to study the shrinkage of cement stabilized macadam under different cement contents, by conducting dry shrinkage and temperature shrinkage indoor experimem on cemem stabilized macadam of three doses--3%, 4% and 4.5% （mass fraction）, the variation curve of moisture content with time and that of dry shrinkage coefficient with time and that of temperature shrinkage coefficient with time of cement stabilized macadam under different cement contents is gained. The result shows the cement content is the main factor which influences the shrinkage performance of base materials and that the control of moisture and temperature can reduce shrinkage and simultaneously restrain reflection cracks, which provides the basis for the research of reflection crack prevention.

关 键 词：收缩 水泥稳定碎石 干缩系数 温缩系数 反射裂缝 基层 

分 类 号：U416[交通运输工程—道路与铁道工程]