摘要
通过扫描电子电镜观察掺细废旧料的水泥稳定碎石微观结构形态,研究RAP水泥稳定碎石柔化抗裂机理,并通过不同水泥用量、不同RAP掺量的无侧限抗压强度、干温缩试验、冲刷实验、疲劳试验等研究了掺RAP水泥稳定碎石的力学性能、收缩性能和耐久性能,得出RAP柔化后的水泥稳定碎石可以有效减少裂缝病害的发生。
The micro-structure and morphology of cement stabilized macadam mixed with fine waste materials were observed by scanning electron microscope to study the softening and anti-cracking mechanism of RAP cement stabilized macadam.The mechanical properties,shrinkage properties and durability properties of RAP cement stabilized macadam were studied by shrinkage test,scour test and fatigue test.Through the research,it is concluded that the cement stabilized crushed stone softened by RAP can effectively reduce the occurrence of crack diseases.
作者
刘明
李昊
LIU Ming;LI Hao(Qingdao Academy of Transportation Sciences,Shandong Qingdao 266075 China;Qingdao Transportation Planning and Design Institute Co.,Ltd.,Shandong Qingdao 266102 China)
关键词
RAP
抗裂机理
力学性能
耐久性
RAP
crack resistance mechanism
mechanical properties
durability
