关键词: 沥青路面, 改扩建, 拼接工艺

Abstract: The stitching technology of asphalt pavement joints has always been one of the technical problems that deal with asphalt pavement design and construction, and it even does so for the whole road running through the seams of asphalt pavement in Shanghai-Nanjing line extension project. Combined with the hot seam stitching and construction practice in the Shanghai-Nanjing road expansion project, the hot seam stitching technology adopted in Shanghai-Nanjing road expansion project and its key points in construction control are introduced in detail. Furthermore, it is proved that the hot seam stitching is much advantageous than the conventional cold splicing technology either from its internal quality or surface effect, according to the test results and the surface effect of asphalt pavement core samples got from two different technologies.

Key words: asphalt pavement , extension project , stitching technology ;