As the service life increases,the restoration and renewal of the anti-corrosion ability of steel structures in urban bridges is an important task in bridge maintenance.This article studies the steel structure of urban cross river bridges,which has a high-performance aluminum zinc primer.The intermediate and topcoat layers in the composite coating are aged.Under extremely high environmental requirements,after analysis and experimental verification,the op-timal maintenance coating scheme is obtained.It not only protects the original aluminum zinc primer,but also restores the anti-corrosion performance of bridge steel structures.
aluminum zinc base coatingsteel structures for urban cross river bridgesrepair paintingcon-struction technology
万方数据
维普
