Mechanism and affecting factors of sulphate erosion in concrete

Abstract：The mechanism of sulphate erosion in concrete is elucidated through analyzing its reaction types.The factors affecting the sulphate erosion reaction, such as the components of concrete, the porosity type and its distribution in concrete, the erosive solution, and the working environments of concrete are discussed.Based on the analysis and discussion, the methods for promoting the anti-sulphate erosion ability of concrete, such as reducing the reaction activity of concrete's components with sulphate, or ameliorating the porosity structure of concrete are proposed.

Keyword：concrete;sulphate erosion;mechanism;affecting factors;