土工合成材料在沥青修补混凝土路面中的应用

旧混凝土道路在维修改造时,多在旧水泥混凝土路面上加铺一层沥青混凝土面层,加铺后主要存在路面反射裂缝开裂问题。该文针对旧混凝土路面加铺沥青面层后主要存在的反射开裂质量通病,对沥青路面反射裂缝产生的原因、防治措施进行分析。结果表明,采用加铺土工合成材料的方法能有效减少或延缓反射裂缝开裂。土工布和土工格栅各有优缺点,应根据其各自的物理性质、当地的气候、地理环境和投资等选择合适的土工合成材料。

Application of Geotechnical synthetic Material in Asphalt Pavement

There mainly exists the reflection cracking problem in adding the asphalt layer on the old concrete pavement when maintained and modified.Here,the mechanisms and prevention measures of the reflection cracks are discussed and analyzed.The results show that the reflection cracks could be reduced and delayed effectively by adding the geotechnical synthetic materials such as the geotechnical fabric and geotechnical grille,which should be choosed and used according to their respective physical features and under different environment conditions.