Research On Constructing Technique Of Synchronous Chip Seal

Synchronous chip seal is one of the most economical techniques used in road maintenance. It is to distribute the asphalt and aggregate on the old pavement or the grass roads, form one kind of wearing course after the compaction of tire-roller or vehicles. Synchronous chip seal can repair pavement distress, restore the service performance, extend the service life. In 2002, Synchronous chip seal technology enter china, which is mainly used in lower seal, but not the pavement maintance, because there is little studying on construction technology, materials, the theory and applied technology of chipsealer. In this paper, the materials, such as asphalt, aggregate, the adhesivity between them and the climatic influencing on the materials choice is studied; Based on the study of actuality, structure, and operating principle of chipsealer, machines model selection and combine method in chip seal is advised; Following the operation procedure, the construction technology is studied. Method based on fiducial probability is advised to be used in evaluating the construction quality, after summing up the methods used at present time.