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从1989年京石高速公路半幅48km建成通车,到2003年底,河北省高速公路总里程达1681km,其中98%以上为沥青混凝土路面。经过大体三个阶段的实践探索,河北省高速公路沥青路面技术不断完善,路面的结构耐久性和行车舒适性都有了很大的提高。但是,在高速公路沥青路面中仍旧存在行车道车辙,路面开裂等早期破损等技术问题需要解决。从河北省高速公路路面工程的实践经验出发,结合省外路面技术的最新发展,对进一步提高全省高速公路沥青路面技术提出了初步的建议。
Since 1989, half of Beijing-Shijiazhuang Expressway opened to traffic 48 km, by the end of 2003, Hebei Province, the total mileage of 1681km highway, of which more than 98% of asphalt concrete pavement. After three years of practical exploration, the highway asphalt pavement technology in Hebei Province has been continuously improved, and the pavement durability and driving comfort have been greatly improved. However, technical problems such as roadway rutting, early breakage of pavement cracking and the like still exist in the asphalt pavement of the expressway and need to be solved. Based on the practical experience of expressway pavement engineering in Hebei Province and the latest development of the pavement technology outside the province, some preliminary suggestions are put forward to further improve the asphalt pavement technology of the expressway in the province.