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针对目前沥青混凝土路面的车辙问题,对采用硬沥青AH-30的沥青混合料、SBS改性沥青混合料及一般重交沥青AH-70混合料分别进行了原样沥青、短期老化沥青和长期老化沥青下的车辙试验,并对采用硬沥青AH-30的沥青混合料进行了原样沥青、短期老化沥青和长期老化沥青下的水稳定性和劈裂试验,比较了同级配下3种沥青混合料的高温稳定性性能,分析了沥青类型对沥青混合料抗车辙能力的影响。试验结果表明,采用硬沥青的沥青混合料具有良好的抗车辙能力,同时水稳定性和抗开裂性也能符合我国的规范要求。
Aiming at the current rutting problem of asphalt concrete pavement, asphalt mixture, SBS modified asphalt mixture and general gravity asphalt AH-70 mixture with hard asphalt AH-30 were respectively subjected to asphalt, short-term aging asphalt and long-term aging asphalt The rutting test was carried out. The water stability and splitting test of asphalt mixture with hard asphalt AH-30 was carried out under the conditions of as-received asphalt, short-term aged asphalt and long-term aged asphalt. The high temperature Stability performance, analyzed the impact of asphalt type on rutting resistance of asphalt mixture. The test results show that asphalt mixture with hard asphalt has a good anti-rutting ability, while water stability and cracking resistance can also meet our country’s specification requirements.