Concrete corrosion and control practices ‐ an overview

Abstract

Concrete forms a major component of the national infrastructure. Corrosion of reinforced steels embedded in concrete has recently received wide attention in R&D programmes. Different cases have been reported showing failures of concrete structures which means huge loss. An attempt has been made to identify the different factors affecting the corrosion of embedded steel. Comparative evaluation of different protective schemes use of additives in concrete admixtures and the application of the cathodic protection technique has been discussed.

Corrosion Resistance of Mild Steel in Simulated Concrete Pore Solution in Presence of Chloride Ions - An Overview

“…In order to improve the durability of reinforced concrete, various technologies and methods were applied [4], e.g. patch repairs [5], coatings [6], sealing and membranes for concrete surface [7], special steel bar (stainless steel bar, epoxy coated steel reinforcement, et al) [8][9], electrochemical protection (including cathodic protection, electrochemical realkalization and electrochemical chloride extraction (ECE) [10][11][12][13][14] and corrosion inhibitors [15][16][17][18]). Due to its excellent inhibition performance, low cost and labor saving, corrosion inhibitor is considered as one of the most effective, long-term corrosion protection methods for steel reinforcement [19].…”