%0 Journal Article
%T Comparative Study on Corrosion Protection of Reinforcing Steel by Using Amino Alcohol and Lithium Nitrite Inhibitors
%A Han-Seung Lee
%A Hwa-Sung Ryu
%A Won-Jun Park
%A Mohamed A. Ismail
%J Materials
%P 251-269
%D 2015
%I MDPI AG
%R 10.3390/ma8010251
%X In this study, the ability of lithium nitrite and amino alcohol inhibitors to provide corrosion protection to reinforcing steel was investigated. Two types of specimens¡ªreinforcing steel and a reinforced concrete prism that were exposed to chloride ion levels resembling the chloride attack environment¡ªwere prepared. An autoclave accelerated corrosion test was then conducted. The variables tested included the chloride-ion concentration and molar ratios of anti-corrosion ingredients in a CaOH 2-saturated aqueous solution that simulated a cement-pore solution. A concentration of 25% was used for the lithium nitrite inhibitor LiNO 2, and an 80% solution of dimethyl ethanolamine ((CH 3) 2NCH 2CH 2OH, hereinafter DMEA) was used for the amino alcohol inhibitor. The test results indicated that the lithium nitrite inhibitor displayed anti-corrosion properties at a molar ratio of inhibitor of ¡Ý0.6; the amino alcohol inhibitor also displayed anti-corrosion properties at molar ratios of inhibitor greater than approximately 0.3.
%K reinforced concrete
%K reinforcing steel corrosion
%K amino alcohol inhibitor
%K electrochemical evaluation
%U http://www.mdpi.com/1996-1944/8/1/251