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芯样空隙率与路面水损害的影响规律

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摘要 该文通过取芯检测沥青混合料的空隙率,采用高温浸水条件下的多轮车辙试验研究空隙率和沥青含量对路面水损害的影响规律。结果表明,行车带处上、中面层车辙深度明显大于路肩处的上、中面层的车辙深度;随着空隙率(空洞)的增大车辙深度有较为明显的增大;基于上、中面层空隙率的养护措施选择原则为:空隙率6%~8%,采用"中"强度养护措施;空隙率8%~12%时,采用"强"强度的养护措施;空隙率大于12%时,建议采用矫正性养护措施。研究成果为运营期沥青路面内部缺陷的判别及养护措施的制定提供了重要依据。
出处 《科技创新导报》 2015年第9期26-29,共4页 Science and Technology Innovation Herald
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