CARACTÉRISATION DE L’ADHERENCE DES RÉPARATIONS EN BÉTON ÉVALUATION ET FACTEURS D’INFLUENCE
B. Bissonnette , Andrzej Garbacz , L. Courard
AbstractRepair and strengthening of existing concrete structures are among the biggest challenges civil engineers are facing today and will have to face in the years to come. Present concerns of sustainable development emphasizing repair instead of new construction will only strengthen this trend. Concerted efforts towards improving the durability of concrete repairs are still needed from scientists and engineers. One of the critical aspects of durability of concrete repairs and overlays is lasting and sufficient interfacial bond between repair material and existing concrete substrate. This paper summarizes some of the findings of a collaborative study devoted to the most significant factors influencing bond in repairs (roughness, degree of saturation and carbonation of the substrate) and its field evaluation (type of loading, device misalignment). Based on the test results collected in different test programs, guideline-type recommendations for surface preparation prior to repair were issued in a USBR guideline in the USA
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Garbacz Andrzej, Courard L. (eds.): Symposium 3R: Reduce, reuse, recykling in constructions. 15 Years of cooperation between Warsaw University of Tchnology & University of Liege, 2016, Warsaw, Warsaw University of Liege, 64 p.
Symposium 3R.pdf / No licence information (file archived - login or check accessibility on faculty)
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