聚酯纤维沥青混凝土在干线公路道口的应用

重载超载车辆在红绿灯控制的平交道口频繁刹车启动，对路面结构层产生很大的横向剪切作用，很容易导致平交道口沥青路面车辙、拥包等早期损坏。针对这一情况，在苏州某通港干线公路平交道口上面层沥青路面混凝土采用添加聚酯纤维的方法来增强路面的抗变形、抗剪切能力。实践证明，该方法不改变施工工艺，不增加施工设备，施工便易，经济合理，具有一定的推广应用价值。

Application of Polyester Fiber Asphalt Concrete in Trunk Road Crossing

Heavy vehicle braking and starting frequently in road crossing with traffic light will have transverse shearing effect on pavement structure. It is easy lead to early damage such as rutting of asphalt pavement. In this paper polyester fiber asphalt concrete was used to enhance the anti-deformation and anti-shearing capacity on trunk road crossing in Suzhou city. Practice has proved that this method does not change the construction process, no additional construction equipment and easily construction and have popularization using value.