从化学反应角度看混凝土中的硫酸盐侵蚀

Analysis of Concrete Sulphate Attack from Chemistry Reactions

硫酸盐对混凝土有极大的侵蚀作用,是一个复杂的物理化学过程.以化学反应方程式的形式分析硫酸盐侵蚀的反应机理,得出硫酸盐侵蚀属于膨胀结晶性化学侵蚀,并提出减弱或防止混凝土硫酸盐侵蚀的方法.

Sulphate is easy to attack concrete, and aftereffect is harmful. Sulphate attack is complicated physical chemistry process. The mechanism of concrete sulphate attack is analyzed through its chemistry reactions. The study indicates that sulphate attack is a salt distensible crystal attack. Based on the analysis and discussion, the measures for weakening or avoiding＂ sulphate attack are proposed.