Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/46508
Title: Assessment of the corrosion degree of beams subjected to accelerated corrosion based on indirect data
Authors: VEREECKEN, Eline 
Botte, Wouter
Lombaert, Geert
Caspeele, Robby
Issue Date: 2025
Publisher: Fédération Internationale du Béton – International Federation for Structural Concrete
Source: Briffaut, Matthieu; Torrenti, Jean Michel (Ed.). Concrete structures: extend lifetime, limit impacts, Fédération Internationale du Béton – International Federation for Structural Concrete, p. 3326 -3337
Abstract: In the view of circular construction, there should also be a focus on the assessment of existing structures. Their remaining strength and capacity should be determined, taking into account the degradation over their life-time. Often, only indirect measurement data is available to assess the level of degradation. Previous studies have illustrated how strain data from proof-loading and modal data from vibration tests can be used to estimate the corrosion level of reinforced concrete structures. However, most of these studies are based on virtual measurement data, and the use of real-case data will often be accompanied with additional challenges. To get a better insight in the challenges of real-case data, an experimental campaign has been performed in the Magnel-Vandepitte laboratory at Ghent University. Different real-size reinforced concrete beams have been subjected to accelerated corrosion. They have been subjected to 4-point bending tests and vibration tests. Afterwards, the actual corrosion degree was determined based on the mass loss of the reinforcement. The influence of the corrosion degree on the measurement data has been investigated and a Bayesian inference framework has been adopted to estimate the corrosion degree of these beams from the test results. From these analyses, important conclusions can be drawn towards the use of Bayesian inference for assessment of the corrosion degree on real-case structures.
Document URI: http://hdl.handle.net/1942/46508
ISBN: 9782940643295
Rights: © Fédération Internationale du Béton – International Federation for Structural Concrete Every effort has been made to ensure that all published information has been reviewed by suitably qualified professionals and that all information submitted is original, has not been published previously and is not being considered for publication elsewhere. Further, the fib has made every effort to ensure that any and all permissions to quote from other sources has been obtained. The editor and the publisher are not responsible for the statements or opinions expressed in this publication. fib Proceedings are not able to, nor intended to, supplant individual training, responsibility or judgement of the user, or the supplier, of the information presented. Although the Scientific Committee did its best to ensure that all the information presented in this publication is accurate, no liability or responsibility of any kind, including liability for negligence, is accepted in this respect by the organization, its members, employees or agents. All rights reserved. No part of this publication may be reproduced, modified, translated, stored in a retrieval system or transmitted in any form or by any means – electronically, mechanically, through photocopying, recording or otherwise – without prior written permission from the fib.
Category: C1
Type: Proceedings Paper
Appears in Collections:Research publications

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