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Bonded Concrete Overlays: A Brief Discussion on Restrained Shrinkage Deformations and Their Prediction Models
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.ORCID iD: 0000-0002-3459-2855
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering. Head of R&D department, BetongIndustri AB, Luleå, Sweden.ORCID iD: 0000-0002-3997-3083
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.ORCID iD: 0000-0001-5187-2552
2019 (English)In: Nordic Concrete Research, ISSN 0800-6377, Vol. 61, no 2, p. 107-129Article in journal (Refereed) Published
Abstract [en]

Bonded concrete overlays (BCO) on bridge decks are beneficial solutions due to their superior properties as compared to the typical asphalt pavement. A significant number of overlays suffer however, from occurrence of cracks and delamination due to poor bond, and restrained shrinkage and thermal dilation. Over the past years different appraisals for estimation of the restrained deformations have been developed, from micro-scale models, based on poromechanics, to empirical equations as given in B3 or B4 models suggested by Baiant. This paper provides a short overview of calculation models along with a brief theoretical explanation of shrinkage mechanism.

Place, publisher, year, edition, pages
Walter de Gruyter, 2019. Vol. 61, no 2, p. 107-129
Keywords [en]
bridge, overlay, concrete, shrinkage, creep
National Category
Infrastructure Engineering
Research subject
Building Materials; Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-95682DOI: 10.2478/ncr-2019-0019ISI: 000508428100007OAI: oai:DiVA.org:ltu-95682DiVA, id: diva2:1738906
Note

Godkänd;2023;Nivå 0;2023-02-23 (hanlid)

Available from: 2023-02-23 Created: 2023-02-23 Last updated: 2023-09-05Bibliographically approved

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Nilsson, MartinEmborg, MatsOhlsson, Ulf

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