Monitoring of the effect of water repellent coatings on the corrosion rate of steel in carbonated concrete

Author(s): J.S. Mattila, M. J. Pentti
Paper category: Workshop
Book title: International RILEM Workshop on Integral Service Life Modelling of Concrete Structures
Editor(s): R.M. Ferreira, J. Gulikers, C. Andrade
Print ISBN: 978-2-35158-058-5
e-ISBN: 978-2-35158-090-5
Publisher: RILEM Publications SARL
Pages: 185 - 192
Total Pages: 8
Language: English

Abstract: 
Carbonation induced reinforcement corrosion affects many kinds of outdoor concrete structures which are not exposed to saline environment. Due to insufficient cover depths there may be large amounts of corroding reinforcement in carbonated zone without any visual sign.
A suitable water repellent treatment is a potential inexpensive option to lower the moisture content of concrete and retard the rate of active corrosion to increase the residual service life if concrete structures. However, it is not simple to prove the efficiency of these treatments.
This paper describes the utilisation of a special type of corrosion monitoring device to evaluate the efficiency of water repellent coating to decrease the corrosion rate of reinforcement in carbonated concrete.

Keywords: Concrete, Reinforcement, Corrosion, Coating, Durability, Service life

Online publication: 2013
Publication Type: full_text
Public price (Euros): 0.00