Browse > Article
http://dx.doi.org/10.5345/JKIBC.2014.14.5.397

Anti-Corrosion Property of Geopolymer Evaluated by an Impressed Current Cathodic Protection Method, Exposed to Marine Environment  

Lee, Hae-Seung (Department of Architecture and Ocean Space, College of Ocean Science and Technology, Korea and Ocean University)
Cho, Ggu-Hwan (Department of Architecture and Ocean Space, College of Ocean Science and Technology, Korea and Ocean University)
Park, Dong-Cheon (Department of Architecture and Ocean Space, College of Ocean Science and Technology, Korea and Ocean University)
Publication Information
Journal of the Korea Institute of Building Construction / v.14, no.5, 2014 , pp. 397-405 More about this Journal
Abstract
There are many literatures reporting that the service life of re-bars in concrete structures is reduced in the oceanic environment due to chloride attack. To solve this problem, this study used geo-polymer as a mix material for concrete to increase its resistance to salt damage, and the external voltage method, one of the electric methods, is was applied to evaluate the likelihood of re-bars in the oceanic structure being exposed to the extreme salt environment. The items evaluated include the natural potential of re-bars and the corrosion rate. The results of the tests showed that in all of the salt environmental conditions (submerged zone, tidal zone, and crack), the tested materials were remarkably effective compared with ordinary concrete. The corrosion protective property was found not only in the evaluation of the natural potential but also in the evaluation of the corrosion rate, suggesting that the external voltage method can be used stably for geo-polymer RC structures in an extreme salt environment.
Keywords
cathodic protection; impressed current cathodic protection; geopolymer concrete; half-cell method; corrosion rate;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Moon HY, Kim SS, Kim SH. Effect of Impressed Current System for Corrosion Protection of Rebars in Concrete. Journal of the Korea Concrete Institute. 1999 October 31;11(2):221-30.   과학기술학회마을
2 Lee JH, Lee JB, Kim SS, Uhm SH. Furnace Slag and Fly Ash in Concrete Utilizing Study on Salt Resistance. Journal of Korea Recycled Construction Resource Institute. 2013 November 30;13(22):164-6.
3 Sin KS, Kim GY, Lee BG, Cho BS, Lee HH. Evaluation on the Salt damage Resistance of Concrete using Blast-furnace Slag. Journal of Korea Recycled Construction Resource Institute. 2012 November 30;12(2):44-6.
4 Song JK, Yang JH. Trends of Geopolymer Concrete Development. Journal of Architectural Institute of Korea. 2010 February 18;54(2):26-9.
5 Lee KP, Do YS, Lee SS, Song HY. A Study on Optimum Mixing Derivation of the Environment-Friendly High Performance Geopolymer Paste. Journal of The Korea Institute of Building Construction. 2009 November;9(2):107-11.
6 Lee SG. The Study on the Anti-Corrosive Methods of Reinforced Concrete Exposed to Salt damage Environment [master's thesis]. [Seoul Korea]: Chung-Ang University; 2002. 68 p.
7 Moon HS. Research of Corrosion Protection System for Reinforced Concrete Steel Exposed to Chloride Environments [master's thesis]. [Seoul Korea]: Chung-Ang University; 2001. 73 p.
8 Kim EG, Sin CB, Cho WI, Lee YH. An Experimental Study on the Transport of Chloride Ions and the Corrosion of Reinforcing Steel in Coastal Concrete Structures. Journal of Korean Society of Civil Engineers. 1998 July 31;18(1-4):447-55.   과학기술학회마을
9 LEE GS, Chloride Attack Protection Cases of Reinforced Concrete Structures in Foreign Countries. Journal of the Korea Institute for Structural Maintenance Inspection. 2000 July 31;4(3):30-8.
10 Bennet J, Turk T. Criteria for the Cathodic Protection of Reinforced Concrete Bridge Elements. SHRP-S-359, SHRP, US. 1994; 3-14.
11 Jung JA. Corrosion and Cathodic Protection Monitoring of Reinforced Concrete Structure [Doctorate thesis]. [Busan Korea]: Busan University; 2013. 162 p.
12 Kwon TS. Effects of Alkali-Activatiors on Compressive Strength of Blast Furnace Slag Concrete [master's thesis]. [Seoul Korea]: HanYang University; 2002. 51 p.
13 LEE JG, Choo YS, Jung SJ. Status and Prospect of Geopolymer. The Korean Journal of Ceramics. 2006 June 30;9(3):44-9.
14 Kim CM. A Study on the Ways of Practically using Geopolymer Concrete [master's thesis]. [Jeon Nam Korea]: Jeon Nam University; 2009. 45 p.
15 Song JG, Yang GH, Kim GW, Kim BJ. Properties of Sodium Alkali-Activated Ground Granulated Blast-Furnace Slag(GGBS) Mortar. Journal of Architectural Institute of Korea. 2010 June 30;26(6):61-8.   과학기술학회마을
16 Choi DS. Characteristics of Chloride Ion Diffusion in Concrete Containing GGBS [master's thesis]. [Seoul Korea]: Hang Yang Univsity; 2001. 56 p.
17 Choi SS. The Property of Chloride Ion Migration in Concrete According to Method of Fly-Ash Mixtures [master's thesis]. [Busan Korea]: Dong-Eui University; 2012. 82 p.
18 Kim SS. Study on the Deterioration of Concrete and the Corrosion and Protection of Reinforcing Steel in Concrete under the Seawater Environment [master's thesis]. [Seoul Korea]: Hanyang University; 1994. 175 p.