沥青路面预防性养护中的封层技术研究

Research on the Seal Coat Technique of Bituminous Pavement Preventative Maintenance

对沥青混凝土路面预防性养护中封层技术进行了分析,阐述了封层技术的特点和作用,说明封层技术在养护工程中的地位和优势,重点对雾封层、石屑封层、稀浆封层各自的特征和适用范围、技术要求做了详细介绍。根据山西沂州公路实体工程,通过公路使用性能评价确定选择稀浆封层处理,检测结果显示整治后路面平整度提高0.5倍,抗滑性能提高44.4%。实践证明,封层技术对改善路面使用状况具有良好的效果。

The seal coat technique of bituminous pavement preventative maintenance is analyzed, the feature and function of seal coat technique is elaborated, explain the seal coat technique position and superiority in the maintenance engineering, the features, applicantion scope and technical requirements of fog seal, screening seal coat, slurry seal are detail introduced respectively, base on the highway entity engineering of Shanxi Yizhou, select slurry seal for treating as per the evaluation of highway usability is determined, inspection result shows that surface evenness improve 0. 5 time after the regulation, anti - slide performance improve 44. 4% , practice has proved, seal coat technique is provided with favorable result for improving pavement service condition.