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Peeling/Flacking Prediction Model

 Peeling/Flacking Prediction Model
Auteur(s): , ,
Présenté pendant IABSE Symposium: Engineering for Progress, Nature and People, Madrid, Spain, 3-5 September 2014, publié dans , pp. 3023-3030
DOI: 10.2749/222137814814069741
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Occurrence of peeling/flacking (P/F) of concrete is a typical deterioration phenomenon in a concrete structure. From the point of view of structural safety and third party damage, it is necessary ...
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Détails bibliographiques

Auteur(s):


Médium: papier de conférence
Langue(s): anglais
Conférence: IABSE Symposium: Engineering for Progress, Nature and People, Madrid, Spain, 3-5 September 2014
Publié dans:
Page(s): 3023-3030 Nombre total de pages (du PDF): 8
Page(s): 3023-3030
Nombre total de pages (du PDF): 8
Année: 2014
DOI: 10.2749/222137814814069741
Abstrait:

Occurrence of peeling/flacking (P/F) of concrete is a typical deterioration phenomenon in a concrete structure. From the point of view of structural safety and third party damage, it is necessary to evaluate the risk of P/F accurately and to cope with P/F. In this study, authors propose the methodology to predict on P/F of concrete in consideration of uncertainty. Concretely, a Weibull hazard model is formulated to express a corrosion of reinforcement with progress of time and an increase of the number of P/F, and is extended to a spatial Weibull hazard model by considering a spatial chain. By doing so, the proposed model expresses a partial increase of the number of P/F caused by a corrosion of reinforcement. Finally, the appropriateness of the proposed method is discussed through the empirical analysis of the visual inspection data on RC handrails in the railway bridge.