自加工多孔玄武岩沥青混合料水稳定性研究

Research on Water Stability of Self-processed Porous Basalt Asphalt Mixture

在水煮法评价集料粘附性的基础上,采用煮沸状态下集料表面沥青剥落时间为指标来有效表征自加工多孔玄武岩集料与沥青之间的粘附作用,通过浸水马歇尔试验和冻融劈裂试验验证自加工多孔玄武岩沥青混合料的抗水损害能力,并借鉴橡胶沥青混合料膨胀率指标,测试混合料试件恒温水浴条件下高度膨胀规律,分析评价自加工多孔玄武岩沥青混合料在水损害条件下的体积稳定性。

On the basis of the boiling state for fixation of asphalt material surface spalling time indicators to effectively characterize the processing between porous basalt aggregate and asphalt adhesion effect, by immersing Marshall test and freeze-thaw splitting test since the processing of porous basalt water damage resistance of asphalt mixture, and rubber asphalt mixture inflation indicators, To test the height expansion law of the mixture specimen under constant temperature water bath condition, and analyze and evaluate the volume stability of self-processed porous basalt asphalt mixture under water damage condition.