沥青混合料抗冻性能的研究

Research of freeze-resistance performance of asphalt mixture

以长平高速公路试验数据为依据、沥青混合料稳定度—冻融循环次数关系为基础,按照道路使用性能的基本要求,提出了以寒冷地区高速公路沥青表层的容许空隙率来评价沥青混合料的抗冻性能。

Based on the test data from Changchun-Siping expressuay and on the relation ship between the stability and freezing-melting recycling frequencies of asphalt mixture discussion is made on the provision of porosity available for the asphalt surface of highways in cold re-gions,aiming at evaluating the freeze-resistance performame of it.