Study on Ability of Resistance to Steel Corrosion of Air Entraining Concrete Under Freezethaw Environment(PDF)
《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]
- Issue:
- 2014年03期
- Page:
- 85-89
- Research Field:
- Publishing date:
Info
- Title:
- Study on Ability of Resistance to Steel Corrosion of Air Entraining Concrete Under Freezethaw Environment
- Author(s):
- MA Zhi-ming; ZHAO Tie-jun; BA Guang-zhong; GUAN Ting
- Department of Building Engineering, Tongji University
- Keywords:
- concrete; air entraining agent; freezethaw cycle; steel corrosion; antifreeze property; corrosion current density
- PACS:
- -
- DOI:
- -
- Abstract:
- The freezethaw cycle tests of the ordinary concrete specimen and the air entraining concrete specimen with steel were carried out, and the chloride corrosion tests under different freezethaw damage degrees were done. The potential values and corrosion current density of steel in concrete specimens were determined under different freezethaw cycle times by using halfcell potential method and linear polarization method, then the steel corrosion condition in concrete was qualitatively determined. The study results show that adding air entraining agent can improve the antifreeze property of concrete, promote the ability of resistance to steel corrosion, and prolong the durability of concrete structure. After specimen splitting test, the actual steel corrosion condition has the same result with the result by chemical approach.
Last Update: 2014-09-30