水泥稳定级配碎石振动成型试验研究  

Experimental Research on Vibration Forming of Cement Stabilized Graded Macadam

作　　者：刘俊瑞 刘莎 LIU Jun-rui;LIU Sha(Shanxi Transportation Construction Engineering Quality Inspection Center(Ltd.),Taiyuan 030032,China;China Water Resources Beifang Investigation,Design&Research Co.,Ltd.,Tianjin 300000,China)

机构地区：[1]山西省交通建设工程质量检测中心(有限公司),太原市030032 [2]中水北方勘测设计研究有限责任公司,天津市300000

出　　处：《北方交通》2020年第8期73-75,共3页Northern Communications

摘　　要：依托广东省某高速公路,对比了水泥稳定级配碎石在重型击实和振动击实条件下最大干密度、最佳含水率及无侧限抗压强度的变化。研究结果表明,振动成型能更好地模拟现场的压实,各项指标均优于重型击实条件下成型的试件;在水泥用量4.0%下即可满足基层无侧限抗压强度的要求,通过减少水泥用量,能有效避免温缩裂缝的产生。Based on an expressway in Guangdong province,the changes of the maximum dry density,the optimum moisture content and the unconfined compressive strength of cement stabilized graded macadam under the condition of heavy compaction and vibration compaction are compared. The research results show that,the vibration forming can better simulate the field compaction,and each index is better than that of the test piece formed under the condition of heavy compaction;when the cement content is 4. 0%,it can meet the requirements of the unconfined compressive strength of the base course;reducing the cement content can effectively avoid the generation of temperature shrinkage crack.

关 键 词：水泥稳定级配碎石 振动成型 重型击实 无侧限抗压强度 试验性能 

分 类 号：U416.214[交通运输工程—道路与铁道工程]