Article (Scientific journals)
Essai dérivé de l’essai d’adhérence pour la caractérisation de la cohésion superficielle des supports en béton dans les travaux de réparation : analyse des paramètres d’essai
Courard, Luc; Bissonnette, B.
2004In Materials and Structures, 37 (269), p. 342-350
Peer Reviewed verified by ORBi
 

Files


Full Text
Essai d'adhérence.pdf
Publisher postprint (1.03 MB)
Download

All documents in ORBi are protected by a user license.

Send to



Details



Abstract :
[en] Concrete repair works involve most of the time the removal of the damaged or contaminated surface layer. It is necessary to assess the effect of that operation (tool, procedure, etc) upon the integrity of the residual concrete substrate, prior to the placement of the repair material, since it can affect significantly the adhesion of the repair system. This paper summarizes the findings of a study intended to develop a simple test method for that purpose. After a thorough review of the related scientific documentation, it has been decided to adapt the so-called pull-off test, which is commonly used to determine the bond strength of repair products. An experimental program has been conducted to evaluate the influence of various test parameters on the measured cohesion of a reference concrete surface: transfer plate thickness and diameter, core drilling depth, speed of loading, adhesive type and thickness, and number of tests. A multivaried statistical analysis of the test results clearly shows that the plate diameter and core depth are the most significant parameters, presumably with threshold values, and that there exists a synergetic effect between them. Also, a minimum number of tests can be defined based on the standard deviation and required level of confidence of the results. Overall, the test method shows good potential for a sound quantitative evaluation of a concrete surface mechanical integrity prior to repair, provided that the test parameters are selected properly.
Disciplines :
Civil engineering
Author, co-author :
Courard, Luc  ;  Université de Liège - ULiège > Département Argenco : Secteur GeMMe > Matériaux de construction non métalliques du génie civil
Bissonnette, B.
Language :
French
Title :
Essai dérivé de l’essai d’adhérence pour la caractérisation de la cohésion superficielle des supports en béton dans les travaux de réparation : analyse des paramètres d’essai
Alternative titles :
[en] Adaptation of the pull-off test for the evaluation of the superficial cohesion of concrete substrates in repair works: analysis of the test parameters
Publication date :
June 2004
Journal title :
Materials and Structures
ISSN :
1359-5997
eISSN :
1871-6873
Publisher :
R I L E M Publications, Bagneux, France
Volume :
37
Issue :
269
Pages :
342-350
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 29 July 2009

Statistics


Number of views
212 (12 by ULiège)
Number of downloads
3654 (10 by ULiège)

Scopus citations®
 
14
Scopus citations®
without self-citations
4
OpenCitations
 
2

Bibliography


Similar publications



Contact ORBi