The influence of reinforcement steel surface condition on initiation of chloride induced corrosion
Artikel i vetenskaplig tidskrift, 2015

This paper describes a part of the work in the development of a “standard” test method for determining chloride threshold values required to initiate corrosion on reinforcement in concrete. The prerequisites of the test set-up are that the test conditions should be reasonably comparable to those in service and the test method should be fairly reproducible and as rapid as possible concerning the slow diffusion nature of the investigated phenomenon. This paper presents the results from a study on the influence of steel bar surface condition on chloride induced corrosion. Various electrochemical techniques were employed in the study to monitor the corrosion behaviour of the embedded bars with three different surface conditions. It is shown that the steel surface condition has a strong effect on the corrosion initiation of reinforcement in concrete, and can likely be the most decisive parameter attributing to the variability in the reported chloride threshold values.

reinforcement steel surface condition

chloride threshold values

chloride-induced corrosion

concrete

Författare

Dimitrios Boubitsas

Lunds universitet

CBI Betonginstitut

Luping Tang

Chalmers, Bygg- och miljöteknik, Byggnadsteknologi

Materials and Structures/Materiaux et Constructions

1359-5997 (ISSN)

Vol. 48 8 2641-2658

Ämneskategorier

Materialteknik

Samhällsbyggnadsteknik

Styrkeområden

Building Futures

Materialvetenskap

DOI

10.1617/s11527-014-0343-2

Mer information

Senast uppdaterat

2018-09-06