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The influence of reinforcement steel surface condition on initiation of chloride induced corrosion
RISE., SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB. Lund University, Sweden.
RISE., SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB. Chalmers University of Technology, Sweden.
2015 (Engelska)Ingår i: Materials and Structures, ISSN 1359-5997, E-ISSN 1871-6873, Vol. 48, nr 8, s. 2641-2658Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

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.

Ort, förlag, år, upplaga, sidor
2015. Vol. 48, nr 8, s. 2641-2658
Nyckelord [en]
Chloride threshold values, Chloride-induced corrosion, Concrete, Reinforcement steel surface condition
Nationell ämneskategori
Annan materialteknik
Identifikatorer
URN: urn:nbn:se:ri:diva-2698DOI: 10.1617/s11527-014-0343-2Scopus ID: 2-s2.0-84938981787Lokalt ID: 4685OAI: oai:DiVA.org:ri-2698DiVA, id: diva2:960301
Tillgänglig från: 2016-09-07 Skapad: 2016-09-07 Senast uppdaterad: 2020-12-01Bibliografiskt granskad

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Materials and Structures
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