道路沥青是一种性能优良的筑路材料,其产量约占全部沥青产品的2/3。沥青路面与砂石路面相比有许多优点:可以提高车速,降低噪音,降低油耗,降低运输成本,延长轮胎行驶里程和节省养路费、材料费、易于维护等,因此,道路沥青已成为国际大都市的主流路面建设材料。 Road asphalt is a road building material with excellent performance, and its output accounts for about two-thirds of all asphalt products. Asphalt pavement has many advantages compared to gravel roads: it can increase the speed of vehicles, reduce noise, reduce fuel consumption, reduce transportation costs, extend the mileage of tires, save road maintenance fees, material fees, and ease of maintenance. As a result, road asphalt has become an international leader. Urban mainstream pavement construction materials.