Abstract
Ultra-Thin Whitetopping has been studied and applied abroad as an emerging asphalt pavement overlay and pavement surface layer structure. UTW has the advantages of economy, durability and energy saving, and has broad prospects in urban road asphalt pavement maintenance, rural road surface, airport road surface and so on. For the UTW structure, the bonding condition between the board and the base layer has an important influence on the performance and life of the UW structure. The destruction of the interface between the layers is one of the important reasons for UTW damage. In this paper, the self-developed test piece forming mold was used to carry out the overlap test and the split test of the test piece to carry out the UTW interlayer adhesion performance test. The best interlaminar material and interlaminar treatment is obtained by drilling and engraving the interlayer polymer paste.
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