Efficiency of Amino Alcohols as Corrosion Inhibitors in Reinforced Concrete

Ioannis Vyrides, Eleni Rakanta, Theodosia Zafeiropoulou, George Batis

Department of Chemical Engineering and Chemical Technology, Imperial College, London, UK.
School of Chemical Engineering, National Technical University of Athens, Athens, Greece.

DOI: 10.4236/ojce.2013.32A001                

Abstract

The objective of this paper is to investigate the behaviour of amino alcohol corrosion inhibitors when they are used in reinforced cement mortars either as admixtures in the cement paste or as coating applications on the surface of the rebars. The reinforced cement mortars were exposed to both partial and full immersion in 3.5 wt% NaCl solution. Electrochemical measurements such as half-cell potential and linear polarization technique, as well as weight loss of the embedded rebars were performed in order to obtain information on the corrosion behaviour of the reinforcing steel in cement mortar. Results demonstrate that the amino alcohol corrosion inhibitors offer protection against rebar corrosion in cement mortars.

Keywords

Steel Corrosion; Concrete Durability; Amino Alcohols; Corrosion Inhibitors; Cement Mortars

Conflicts of Interest

The authors declare no conflicts of interest.

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