城市道路沥青面层的路用水稳定性
韩梅 张宏超
摘 要:城市道路沥青面层的水稳定性与路面的水损坏密切相关.由于施工压实度以及城市道路的特点等因素,我国城市道路沥青路面建成初期的空隙率高于设计值,处于透水临界状态,面临着严重的水损坏危险.该文采用Modified Lottoman 方法试验评价了AK13A和AK13B两种常用半开级配沥青混合料,结果显示其水稳定性随空隙率的增大而减小,路面建成初期的劈裂强度比(TSR)指标小于0.5,极易产生破坏.因此,将空隙率控制在较小水平,有利于控制我国城市道路沥青路面的水损坏.
关键词:城市道路;沥青面层;水稳定性
分类号:U416.217 文献标识码:A
文章编号:1009-7716(2006)05-0021-03
Water Stability of Urban Road Asphalt Surface Course
Han Mei Zhang Hongchao
作者简介:韩梅(1974-),女,江苏无锡人,工程师,从事工程管理工作.
作者单位:韩梅(上海机场建设指挥部,上海市,201202)
张宏超(同济大学,上海市,200092)
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