沥青混合料劈裂抗拉强度影响因素的研究

Research on the Factors Affecting on the Split Tension Strength of Asphalt Mixes

摘要:

采用室内劈拉强度试验，测试了沥青混合料的劈拉强度；分析了沥青混合料压实空隙率、沥青膜厚度、粉胶比、水的冻融作用等因素对沥青混合料劈拉强度的影响及其作用规律；分析了沥青道路面层松散的原因，并提出了控制沥青混合料质量的建议．

Abstract:

The influence extent and rule of some factors, including the porosity of the asphalt mixes, the thickness of asphalt film, the dust binder ratio and the freeze and thaw of water, affecting on split tension strength of asphalt mixtures were analyzed by results of laboratory split test. The reason of emergence of raveling on the asphalt pavement surface is discussed, and some ideas to control the quality of asphalt mixtures are put forwarded.