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延长沥青面层的使用寿命,是提高公路经济效益的有效途径。然而,沥青混合料面层的沥青膜的剥离则是影响其使用寿命的主要因素之一。为了寻求沥青膜剥离的原因及控制的指标,本文通过对非洲南回归线偏北的一东海岸湿热带气候,极潮湿地区的沥青混合料面层百余公里进行全面的野外观测和大量的室内试验,提出了沥青混合料的几项水稳性指标及试验手段,以供同行参考。
Extending the service life of asphalt surface is an effective way to improve the economic benefits of the highway. However, the stripping of bitumen membranes in bituminous mixes is one of the major factors affecting their service life. In order to find out the cause and control index of asphalt film stripping, this paper conducted a comprehensive field observation and a large number of laboratory tests on an east coast wet tropical climate to the north of the Tropic of Cancer in South China, a hundred kilometers of asphalt mixture in an extremely humid area , Put forward several asphalt mixture stability index and test means for peer reference.