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Is debonding in concrete pavements unavoidable?
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Concrete Structures.ORCID iD: 0000-0002-1526-9331
2016 (English)In: RILEM Bookseries, Springer Netherlands , 2016, p. 599-604Conference paper (Refereed)
Abstract [en]

Concrete overlays constitute one of the most frequent measures to repair and strengthen concrete bridge decks, concrete pavements, and industrial concrete floors. Good, secure, and durable bond between overlay and substrate provides the prerequisite for monolithic action and improves the durability. 30 years of Swedish research on bonded overlays thought beam tests, slab tests, and field measurements shows that a good bond can be obtained if some important demands are fulfilled. The Swedish research also includes long-term studies on repaired concrete bridge decks. These studies show that the bond is of the same magnitude ten years after concrete repair independent of structural system of the bridge, climate zone, traffic volume, or use of de-icing salt. Laboratory studies show that good bond is also able to resist fatigue loading. This paper summarizes these research activities and provides heavy arguments for answering the question in the heading negatively. Debonding is not unavoidable. 

Place, publisher, year, edition, pages
Springer Netherlands , 2016. p. 599-604
Keywords [en]
Bond, Field tests, Laboratory tests, Longterm studies
National Category
Civil Engineering
Identifiers
URN: urn:nbn:se:kth:diva-216857DOI: 10.1007/978-94-024-0867-6_84Scopus ID: 2-s2.0-85029574636OAI: oai:DiVA.org:kth-216857DiVA, id: diva2:1160845
Note

Export Date: 24 October 2017; Article; Correspondence Address: Silfwerbrand, J.L.; Department of Civil and Architectural Engineering, Division of Concrete Structures, KTH Royal Institute of TechnologySweden; email: jsilfwer@kth.se. QC 20171128

Available from: 2017-11-28 Created: 2017-11-28 Last updated: 2017-11-28Bibliographically approved

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