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Experimental validation of a novel method for estimating the severity of plastic shrinkage cracking in concrete
Luossavaara-Kiirunavaara Aktiebolag (LKAB), Luleå, Sweden.ORCID iD: 0000-0001-8586-2651
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering. Betongindustri AB, 100 74, Stockholm, Sweden.ORCID iD: 0000-0002-3997-3083
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering. Skanska Sverige AB, Gothenburg, Sweden.
Department of Construction And Energy Engineering, Halmstad University, Halmstad, Sweden.ORCID iD: 0000-0003-2567-5891
2022 (English)In: Construction and Building Materials, ISSN 0950-0618, E-ISSN 1879-0526, Vol. 339, article id 127794Article in journal (Refereed) Published
Abstract [en]

Plastic shrinkage cracking in cementitious materials is caused mainly by rapid and excessive moisture loss during mixture’s early ages, before sufficient tensile strength is gained. A novel model has been previously developed by the authors to estimate the severity of plastic shrinkage cracking in concrete. This paper presents findings of a series of full-scale experiments carried out to validate the accuracy of the proposed model. The experiments included investigating the impact of cement type, water-cement ratio (w/c), and admixtures (i.e., accelerator, retarder, and superplasticizer). The tests were performed in three rounds under similar ambient conditions using 3 slabs (3 m × 2 m) and 3 ring test moulds at each round. The results confirm the accuracy of the model in anticipating/comparing the cracking severity of the tested concretes.

Place, publisher, year, edition, pages
Elsevier, 2022. Vol. 339, article id 127794
Keywords [en]
Shrinkage, Cracking, Modelling, Cement type, W/c ratio, Admixtures
National Category
Applied Mechanics Other Civil Engineering
Research subject
Building Materials
Identifiers
URN: urn:nbn:se:ltu:diva-90823DOI: 10.1016/j.conbuildmat.2022.127794ISI: 000804098100002Scopus ID: 2-s2.0-85130409267OAI: oai:DiVA.org:ltu-90823DiVA, id: diva2:1662228
Funder
Svenska Byggbranschens Utvecklingsfond (SBUF)
Note

Validerad;2022;Nivå 2;2022-05-31 (joosat);

Available from: 2022-05-31 Created: 2022-05-31 Last updated: 2022-06-20Bibliographically approved

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Emborg, MatsHedlund, Hans

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