Study on Service Condition Evaluation Technology of Waterproofing and Anticorrosive Coating for Urban Sewage Concrete Structures
With regard to the service status of the concrete waterproofing and anticorrosive coating in a municipal sewage plant,the feasibility analysis of the quick evaluation items is carried out.The quick evaluation items of concrete waterproofing and anticorrosive coating in sewage environment are determined to be the appearance,thickness,adhesion,infrared thermal imaging detection and infrared spectrum analysis of the coating.Based on this,a technology system for fast assessment of waterproofing and anticorrosion coating service status of municipal sewage concrete structures is established,and a biological reaction pool of a sewage treatment plant in Shanghai is taken as an example.The results show that the comprehensive evaluation grade of the concrete waterproofing and anticorrosive coating of the pool body is Du grade,which is in failure state and repair measures need to be taken urgently.
sewage concrete structurewaterproofing & anticorrosive coatingservice status evaluationnon-destructive testingfailure analysis