SMA沥青路面抗车辙性能研究

Research on Anti-rutting Performance of SMA Asphalt Pavement

通过足尺路面加速加载试验系统,对SMA沥青路面的抗车辙能力与普通沥青混凝土路面进行了对比试验。试验结果表明,SMA沥青混合料具有较好的抗车辙能力,而中面层沥青混凝土是沥青路面车辙的主要贡献者,仅仅加铺一层SMA沥青混合料并不能从根本上解决沥青路面的车辙问题,需要加强对各层沥青混合料的综合设计。

Stone Matrix Asphalt （SMA） has been widely used in our country as a good material, This paper studies the anti-rutting perfonnance of SMA asphalt pavement by full-scale Accelerated Loading Facihty （ALF） . The test results proved that SMA asphalt concrete has good ability to anti - rutting, It is also proved that the middle layer asphalt concrete is the main contributor for surface rutting of asphalt pavement. The author suggest it is very necessary to enhance the asphalt concrete material design for every layer.