Please use this identifier to cite or link to this item:
The Application of Cathodic Protection on the Chlorine Reinforced Concrete
Wern-Jier Tseng;Jiang-Jhy Chang;W. C. Yeih
|Contributors: ||NTOU:Department of Harbor and River Engineering|
|Keywords: ||Reinforced concrete;Cathodic protection;Chlorides|
|Issue Date: ||2011-10-20T08:11:28Z
abstract:Failure of reinforced concrete structures exposing to marine environments occur frequently due to steel corrosions induced by intrusion of chlorides. To find the physical solutions of protecting such kinds of structures from aggravation corrosions and extending its lifetime, specimens of reinforce concrete containing with chlorides are prepared and a series of laboratory experiments are performed in this study. Adopting the cathodic protection technique, both of the optimization density of the impressed current and effects of steel polarization are measured and chloride ion titrate, the de-chloride efficiency is evaluated as well. Tested results show that the residual content of chloride in specimens decreasing and converging to a certain limitation as increasing both of the impressed current density and the desalination time. The regions where appeared with the most significant de-chloride effects are found neighboring to the steel. Moreover, it is found that the higher ratio of water/cement in specimens, the better the de-chloride effects are. Synthetically speaking, for steel corrosion control the impressed optimum current density of about 10 mA/m^2~20 mA/m^2 is proposed.
|Relation: ||19(4), pp.509-521|
|Appears in Collections:||[河海工程學系] 期刊論文|
Files in This Item:
All items in NTOUR are protected by copyright, with all rights reserved.