Corrosion of Reinforced Concrete

Title :
Aminoalcohol based mixed corrosion inhibitors

Authors :
F. Wombacher, U. Maeder, B. Marazzani

Abstract :

The objective of this paper is to present new results and sum up the behaviour of aminoalcohol based mixed corrosion inhibitors. These organic and mixed (organic/inorganic) inhibitors can be used as concrete admixtures or in repair products to delay the onset of corrosion or to reduce the rate of corrosion of reinforcing steel in concrete structures. The inhibiting properties are documented in solution and in concrete. The interaction mechanism of the inhibitors with a steel surface has been studied using sophisticated surface analytical methods. The penetration of the surface-applied type can be shown. The inhibitors delay the onset of corrosion and reduce the rate of corrosion. Apart from their application as concrete admixture, they can be used as surface-applied-inhibitors on existing concrete structures, in repair mortars or in grouts for rock bolts and anchors.

Keywords :
Adsorption, Amines, Aminoalcohol, Chlorides, Concretes, Corrosion resistance, Penetration, Reinforcing steels

Source :