混凝土的硫酸盐侵蚀机理及其影响因素

Mechanism and affecting factors of sulphate erosion in concrete

通过分析混凝土硫酸盐侵蚀反应类型,阐明了混凝土硫酸盐侵蚀机理;通过对混凝土组分、混凝土内部孔隙类型及其分布、侵蚀溶液及混凝土所处的工作环境的研究,探讨了影响混凝土硫酸盐侵蚀的因素,并在此基础上从降低混凝土组分与硫酸盐反应的活性和改善混凝土的孔隙结构等方面提出了提高混凝土抗硫酸侵蚀能力的思路和途径.

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.