大粒径沥青混合料的路用性能研究

Study on Pavement Performance of LSAM

通过对大粒径沥青混合料(LSAM)、普通密级配沥青混凝土进行的一系列路用性能试验研究,包括高温变形特性、低温抗裂性、水稳性、抗疲劳特性试验,结果表明大粒径沥青混合料具有优良的路用性能。经石黄高速公路上的试验路使用1年多的验证,结果表明LSAM具有良好的使用效果,可延长路面使用寿命,因而具有较好的经济和社会效益。

A series of test are carried out to analyze the characteristics of high temperature rutting,low temperature crack resistance,water stability,fatigue resistance of large stone asphalt mixes(LSAM) and dense graded asphalt concreteThe results show that the pavement performance of large stone asphalt mixes(LSAM)is super to the dense graded asphalt concreteFinally the experimental section in Shijiazhuang is built on the basis of laboratory study,the application results showed that its service life has been prolonged with great socio?economic benefits