定边二号隧洞混凝土腐蚀原因的初探

Study on Causes of Concrete Corrosion in 2# Tunnel of Dingbian

通过现场探查和室内试验 ,对定边供水工程二号隧洞衬砌混凝土腐蚀的原因进行了初步的试验研究 ,认为由于环境水中含有大量的硫酸根离子和镁离子 。

This paper presents the results of a great deal of outdoor and indoor tests. The causes of concrete corrosion are that the around water has higher contents of SO 4 2- and Mg 2+ ions which can cause the double corrosion of sulphate and magnesium to destroy concrete.