The Influence of Common Construction Errors on Concrete Structure Durability under Chloride Ion Erosion Environment
HE Ya
WU Haijun
Abstract：In order to reveal the influence of common construction errors on concrete structure durability, six forecast models of concrete structure service life under chloride ion erosion environment are compared and major influential factors of durability are analyzed. The common construction errors under typical environment such as concrete bridge structure, protective coating thickness and water-binder ratio are chosen. The results indicate that anticipated service life of concrete structure is significantly influenced by protective coating thickness and water-binder ratio. The influence degree of durability depends on the magnitude of deviation, design parameters and choice of the forecast model. A-5 mm deviation in protective coating thickness would lead to chloride erosion and a 20% ~40% drop in forecasted service life. A+2% deviation in water-binder ratio would lead to a 15% ~25% drop in forecasted service life. Consequently, quality control of the common construction errors is significant to structure resisting chloride ion penetration. Strengthening quality control on key parameters of concrete service life deserves serious attention.
Keywords：concrete structuresdurabilitychloride ion erosioncomputing modelconstruction errorprotective coating thicknesswater-binder ratio
Publication Date：2016-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：6( 67-72 )