文献类型：期刊文献

英文题名：Corrosion Resistance of Carbon Steel Reinforced Solidia Cement Concrete in corrosive waters: An Electrochemical Impedance Spectroscopy Study

作者：Shen, Daoming[1]

第一作者：申道明

通讯作者：Shen, DM[1]

机构：[1]Xinxiang Univ, Sch Civil Engn & Architecture, Xinxiang 453003, Henan, Peoples R China

第一机构：新乡学院土木工程与建筑学院

通讯机构：[1]corresponding author), Xinxiang Univ, Sch Civil Engn & Architecture, Xinxiang 453003, Henan, Peoples R China.|[1107114]新乡学院土木工程与建筑学院;[11071]新乡学院;

年份：2019

卷号：14

期号：7

起止页码：6513-6521

外文期刊名：INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE

收录：;Scopus(收录号：2-s2.0-85071720525);WOS:【SCI-EXPANDED(收录号:WOS:000474380600048)】；

语种：英文

外文关键词：Carbon steel reinforced concrete; Solidia cement concrete; Corrosion resistance; Electrochemical impedance spectroscopy technique

摘要：Corrosion of embedded steel bars is the main factor that reduces the lifespan of concrete structures, as corrosion products produce tensile stresses which crack the concrete cover. In this research, Corrosion resistance of carbon steel reinforced concrete exposed to corrosive water were investigated using electrochemical impedance spectroscopy technique. The electrolyte solution was prepared using a combination of 3 wt% sodium chloride and 5 wt% sodium sulfate. Samples were exposed to mild water revealed activation signs after a very short period of exposure. It seems that primary activation is a combination of pH 8.8 alkaline and rapid water absorption of the concrete. SEM image of the carbon steel surface in reinforced solidia cement (SC) concrete after 2 months of exposure time indicates a homogeneously distribution of oxide layer on the whole steel surface. The corrosion rate values for SC concrete were very low in aggressive water regime. These results indicate that evolutionary changes of the evaluated SC concrete can act as the effective factors in reducing corrosion.