论文部分内容阅读
我国二、三级公路一般采用半刚性基层和较薄的沥青混凝土面层。半刚性基层承载能力强,但是容易产生裂缝,并会逐渐在沥青混凝土面层上形成反射裂缝。面层裂缝是我国沥青混凝土路面的主要病害,也是引起沥青混凝土路面早期损坏的主要原因,二、三级公路面层较薄,反射裂缝更为严重。因此,研究半刚性基层的薄层沥青混凝土路面裂缝防治方法,对于提高低等级公路路面使用性能、延长公路使用寿命具有十分重要的意义。本文着重介绍“薄层沥青混凝土路面裂缝防治措施研究”科研项目的主要内容、观测结果和主要研究结论。
China’s second and third class roads generally use semi-rigid base and thin asphalt concrete surface layer. Semi-rigid base bearing capacity, but prone to cracks, and gradually formed in the asphalt concrete surface reflection cracks. Surface cracks is the main disease of asphalt concrete pavement in our country, which is also the main cause of early damage of asphalt concrete pavement. The surface of second and third grade roads is thin and the reflection cracks are more serious. Therefore, it is of great significance to study the method of preventing and controlling cracks in thin asphalt concrete pavement of semi-rigid base for improving the serviceability of pavement and extending the service life of highway. This article focuses on the main contents of the “Research on Prevention and Control Measures of Cracks in Thin Asphalt Pavements”, the observation results and the main conclusions.