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From defects to causes: pathology of concrete and investigation methods.
Courard, Luc; Van der Wielen, Audrey; Darimont, Anne
2010In Startegjia Izvedbe Sanacij Objektov
Peer reviewed
 

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Keywords :
pathologies; radar (NDT); cracks; strength; porosity; permeability; delamination
Abstract :
[en] The proper planning of investigations before carrying out repair works is important if optimum use is to be made of the test data. A major step needs to be taken from knowing, for example, that chloride is present in the concrete, to select the best methods for repair. Engineers require guidance on both the techniques available for the condition assessment of structures and the methods for data interpretation. Two major stages are usually recommended for such an operation: the first stage is based on a rapid-scan visual assessment, often including limited sampling in areas obviously damaged, from which areas can be selected for more detailed investigations. The second stage contains a detailed diagnostic survey that relies on destructive and non destructive testing techniques. Non destructive techniques are more and more utilized not only for the evaluation of the concrete strength but also for the detection of cracks and delaminations. Moreover, the interest for techniques able to evaluate concrete permeability is rising, due to the importance of this factor for durability evaluation. The paper will discuss the assessment of concrete structures and describe the main destructive and non destructive techniques with regard to specific pathologies.
Disciplines :
Civil engineering
Author, co-author :
Courard, Luc  ;  Université de Liège - ULiège > Département Argenco : Secteur GeMMe > Matériaux de construction non métalliques du génie civil
Van der Wielen, Audrey ;  Université de Liège - ULiège > Département Argenco : Secteur GeMMe > Matériaux de construction non métalliques du génie civil
Darimont, Anne ;  Université de Liège - ULiège > Département Argenco : Secteur GeMMe > Matériaux et maintenance en construction
Language :
English
Title :
From defects to causes: pathology of concrete and investigation methods.
Publication date :
19 May 2010
Event name :
17th Slovenski kolokvij o betonih
Event organizer :
Dr. J. SUSTERCIC
Event place :
Ljubljana, Slovenia
Event date :
19 mai 2010
By request :
Yes
Audience :
International
Main work title :
Startegjia Izvedbe Sanacij Objektov
Publisher :
CIP, Ljubljana, Slovenia
ISBN/EAN :
978_961_91378_6_4
Collection name :
69(082)
Pages :
29-48
Peer reviewed :
Peer reviewed
Funders :
WBI - Wallonie-Bruxelles International [BE]
Available on ORBi :
since 20 May 2010

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