In order to explore the application of ultra-thin wearing course in cement concrete bridge deck treatment,aiming at the maintenance difficulties of poor flatness of bridge deck and limited dead load of bridge,this paper uses three-dimensional detection technology to continuously detect the flatness of bridge deck in different lanes,draws the flatness distribution curve,and innovatively adopts the treatment scheme of"fine milling+ultra-thin wearing course".The results show that the flatness index of the bridge deck before and after the treatment is increased from 69.5 to 93.7,and the skid resistant performance and thickness meet the requirements.Therefore,this scheme can greatly improve the flatness of the bridge deck,and the project has accumulated engineering experience for the popularization and application of this technology.
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