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在沥青混合料中掺加中空聚酯纤维,改善了沥青混合料的性能。室内试验表明:加入中空聚酯纤维后,沥青混合料的最佳油石比增大,稳定度、流值增大,劈裂强度增大,冻融循环后劈裂强度比及车辙试验动稳定度明显增加。中空聚酯纤维改善了沥青与集料的粘附性,使沥青混合料的路用性能得到明显改善,而其性能价格比明显优于普通沥青混合料。特别适用于季节性冰冻地区。
Addition of hollow polyester fibers to the asphalt mixture improves the performance of the asphalt mixture. The indoor tests show that the best ratio of asphalt to asphalt is increased, the stability and flow value increase, the splitting strength increases, the splitting strength ratio after freeze-thaw cycle and the dynamic stability of rutting test obviously increase. Hollow polyester fiber to improve the adhesion of asphalt and aggregate, the road performance of asphalt mixture has been significantly improved, and its cost performance is obviously better than ordinary asphalt mixture. Especially suitable for seasonal freezing areas.