Models for environmental actions on reinforced concrete structures – Consequences for the initiation of chloride induced reinforcement corrosion

Title: Models for environmental actions on reinforced concrete structures – Consequences for the initiation of chloride induced reinforcement corrosion
Author(s): Anders Lindvall
Paper category : conference
Book title: International RILEM Symposium on Concrete Science and Engineering: A Tribute to Arnon Bentur
Editor(s): J. Weiss, K. Kovler, J. Marchand, and S. Mindess
Print-ISBN: None
e-ISBN: 2912143926
Publisher: RILEM Publications SARL
Publication year: 2004
Nb references: 23
Language: English

Abstract: In the current paper the influence from the exposure conditions on the initiation of chloride induced reinforcement corrosion is described, modelled and quantified. The focus is on environments where chlorides are present, i.e. marine environments and along roads where deicing salt is spread. The environmental actions on concrete structures in general and structures in environments where chlorides are present in particular are described in the paper. Models for environmental actions on concrete structures, subjected to chloride-induced reinforcement corrosion are presented in the paper. The models also consider the influence from some concrete properties (following from concrete composition and curing conditions). The principal with the models is to measure concrete properties in the laboratory and transfer them to the actual exposure conditions with a number of sub parameters. As a first approach these sub parameters have been assumed uncorrelated. The consequences of the models for environmental actions are exemplified with service life predictions, where the influence from the exposure conditions and some concrete properties are described with the models. The sub parameters in the models are quantified with data from literature and field studies. The results show that the exposure conditions have large influence on the service life predictions.

Online publication: 2004-03-25
Classification: Applications
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2912143926.073