沥青路面裂缝成因和预防补救措施

Causes and Precaution as well as remedies of Asphalt Pavement's Cracks

以研究沥青路面裂缝的预防和补救措施为目的,通过分析沥青路面裂缝的类型及成因,结合工作中所遇到的裂缝类型和处理方法,指出青藏高原地区的沥青路面,其裂缝类型主要为低温开裂和水损害开裂两种类型,并给出相应的解决方法。对于低温开裂,可以通过灌乳化沥青来进行补救;对于水损害裂缝,应该以施工阶段的预防为主,通过改变沥青混合料的级配,来增强沥青路面的耐水性、防水性,此外,要完善路面内部的排水系统,就能有效地减少由水损害带来的路面开裂。

The purpose of this artical is to analysis Causes and Precaution as well as remedies of Asphalt Pavement's Cracks,by analyzing the types and causes of asphalt pavement cracks,and combination of the types of fractures and treatment meetde in my work,noted that the asphalt Pavement in Tibetan Plateau,Its main types of cracks is low-temperature cracking cracks and water damage,and point the corresponding solutions. For low-temperature cracking,can be remedied by filling emulsified asphalt; For the water damage cracks,construction phase should be on prevention,by changing the asphalt mixture's gradation to enhance the water resistance of asphalt pavement,In addition,to improve the internal road drainage system,it can effectively reduce the damage caused by the water surface cracking.