纤维沥青碎石封层路用性能研究

Research on Road Performance of Fiber Asphalt Chip Seal

随着公路交通事业的发展,各级公路里程不断增长,交通量和轴载也与日俱增,致使一些沥青路面难堪重负、病害接连发生,急需对这些沥青路面进行养护,否则将会引发更为严重的结构性破坏。纤维沥青碎石作为一种新型养护技术,主要用于沥青路面预防性养护。为了全面评价纤维沥青碎石封层的路用性能,基于大量试验数据,就封层与旧路面的黏结性能、不同动水压力下的防水性能、封层在荷载作用下的疲劳性能进行了系统研究,从而为该技术的推广应用提供借鉴。

With the development of highway transportation, the highway length at all levels, traffic volume and axle load have been continuously increasing, result in diseases of asphalt pavement. It is urgent to maintain the asphalt pavement, or it will cause more serious structural damages. As a novel maintenance technology, the fiber asphalt chip seal is mainly used in the preventive maintenance of asphalt pavement. In order to comprehensively evaluate the road performance of fiber asphalt chip seal, based on massive experimental data, this paper systematically studied the bonding property between the seal and old pavement, the waterproof under different dynamic water pressure, and the fatigue property of the seal under load. The research results can provide reference for the promotion and application of this technology.