摘要
以国道324线罗梅公路的水泥混凝土路面大修工程为依托,将碎石化后的结构层移至室内进行筛分、抗压强度、抗压回弹模量、水稳定性以及冲刷、排水等一系列的物理力学性能试验研究。结果表明:碎石化后混凝土结构层的饱水试件抗压回弹模量为134.8 MPa,标准差7.46,变异系数0.06,冲刷系数为0.0277 m^3/(m^2·万次),渗透系数为2.34 cm/s。
Based on the repair engineering on the cement concrete pavement of National Road 324（ Luomei Section）,the structural layer of rubblization was transferred to laboratory for a series of physical and mechanical tests,such as screening,compression strength,and compressive modulus of resilience,water stability,scouring and drainage. The results show that,for the concrete structural layer of rubblization,its saturated specimen has the following parameters： compressive modulus of resilience： 134. 8 MPa,with the standard deviation of 7. 46 and the variation coefficient of 0. 06; scouring coefficient： 0. 027 7 m3/（ m2·ten thousand times）; and permeability coefficient： 2. 34 cm / s.
出处
《路基工程》
2015年第6期84-89,共6页
Subgrade Engineering
基金
广东省交通运输厅科技项目:旧水泥砼路面多锤头碎石化后性能及加铺水泥砼面层技术研究(2009-02-004)
关键词
道路工程
碎石化
室内试验
物理力学性能
冲刷
排水
road engineering
rubblization
laboratory test
physical and mechanical performance
scouring
drainage
