冷拌沥青混合料透水铺装材料路用性能研究

Research on Pavement Performance of Permeable Pavement Materials with Cold Asphalt Mixture

采用高性能改性乳化沥青,配制3种空隙率的冷拌大孔隙开级配沥青混合料并进行透水性能试验、马歇尔试验、车辙试验、浸水马歇尔试验等室内试验评价其路用性能,结果表明冷拌大孔隙开级配沥青混合料排水性能、力学性能、水稳定性良好,高温稳定性略低,可作为"海绵城市"建设中一种节能环保型透水铺装材料。

High-performance modified emulsified asphalt is used to prepare the asphalt mixture withthree kinds of void percentage, and water permeability test, Marshall test, rutting test and immersion Marshall test are conducted to evaluate the road performance. The results show that the drainage performance, mechanical properties, water stability and high temperature stability of cold mix asphalt mixture are good, and the high temperature stability of asphalt mixture is slightly lower. Therefore it can be used as a kind of energy saving and environmental friendly water permeable paving material in the construction of ＂sponge city＂.