摘要:沈大高速公路改扩建工程是东北地区的重要交通建设项目.该路段重载车辆多,交通量大,温度变化大,极易出现车辙、拥包等路面病害,因此路面结构的中、上面层及主线坡度大于1.5%的上坡路段,下面层全部采用沥青马蹄脂碎石混合料SMA-16型(简称SMA-16),并采用SBS改性沥青.
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