Impact of the corrosion inhibitors in the durability of concrete structures

Abstract

The phenomenon of chloride corrosion represents one of the most significant deterioration processes in reinforced concrete structures located mainly in marine environments. The effects of corrosion can mean high maintenance and repair costs. Therefore, the need arises to use mechanisms that mitigate the consequences of corrosion such as corrosion inhibitors and thus extend the useful life of structures. Aim of the present paper is to analyze the economic impact of the use of corrosion inhibitor additives on the durability of reinforced concrete structures. To achieve this, a life cycle cost analysis of different case studies with and without corrosion inhibitors was performed using software. Obtaining a higher costbenefit ratio throughout the useful life of the structures with corrosion inhibitors for each case study, especially those that have a water / cement ratio lower than 0.5 where greater efficiency of the inhibitors is evidenced.