Chloride Analysis And Service Life Prediction Of Marine Concrete After Prolonged Exposure

At present, the durability of the reinforced concrete structure has been domesticand foreign civil engineering and academic circles attach great importance to. Largeharbor, bridge, tunnel and coastal engineering construction make the number of theconcrete structure in coastal area grow rapidly, but also the properties of concretematerials faced challenge with the harsh marine environment.Now a lot of studies on marine concrete chloride ion penetration may be associatedwith the field test, results will have certain disparity, or as a result of the exposure timeof concrete is short, the test result has its limitations.This topic in the field of exposure15years of concrete core, study marine concretecarbonation and chloride ion penetration, can compensate for laboratory research andlack of exposure time of concrete, the study of the durability of concrete for oceanconstruction is of great significance.The topic determines the specimen at different depths of the chlorine ion content,uses software for the fitting of the chloride diffusion coefficient of concrete and otherrelated parameters, analyzes the concrete chloride ion diffusion coefficient influencefactors, through the study of marine concrete in a high humidity environment ofchloride ion penetration, analyzes the local environmental conditions’ effect on chlorideion penetration, discusses the chloride ion penetration’ effect on the durability ofconcrete for ocean construction. In addition, according to the test results discussed inRizhao sea the prediction method of engineering concrete’ service life, calculated thecoal wharf of Rizhao Port remaining life, and maked evaluation on the works of thestructure durability from the overall analysis.