干湿循环作用下硫酸盐和氯离子在混凝土中的侵蚀及预防措施

Erosion of sulfate and chloride ions in concrete under dry-wet cycle condition and preventative measures

本文论述了干湿循环作用及其对混凝土的破坏机理;介绍了干湿循环作用下硫酸盐侵入混凝土的作用机理及影响因素;综述了混凝土中氯离子传输方式及侵入机理;并给出了提高混凝土抗干湿循环和硫酸盐、氯离子侵蚀的途径。

In this paper,the effect of dry-wet cycle and the failure mechanism of sulfate attack on concrete are discussed,the mechanism and influence factors of sulfate intrusion under the dry-wet cycle condition are described,the transmission and intrusive mechanism of chloride ions in concrete are reviewed,the ways to improve the resistance of dry-wet cycle and sulfate,chloride ions erosion in concrete are given.