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Effects of variable curing temperatures on autogenous deformation of blended cement concretes
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.
Skanska Sverige AB.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.ORCID iD: 0000-0001-6287-2240
2017 (English)In: Construction and Building Materials, ISSN 0950-0618, E-ISSN 1879-0526, Vol. 149, 474-480 p.Article in journal (Refereed) Published
Abstract [en]

Shrinkage tests have been performed on blended Portland cement based early-age concrete with different w/c ratios, undergoing variable temperature curing. Results showed presence of induced non-negligible autogenous swelling which could mitigate part of the stresses related to shrinkage at very young concrete age. Recorded swelling was higher at higher curing temperatures and longer duration, especially pronounced for the low w/c mix. The swelling continued for several days after the temperature stabilized. Although not investigated directly, evidence to the nonlinear nature of the thermal expansion coefficient in young concrete has also been provided

Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 149, 474-480 p.
National Category
Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-63597DOI: 10.1016/j.conbuildmat.2017.05.143ISI: 000405536800044Scopus ID: 2-s2.0-85019772715OAI: oai:DiVA.org:ltu-63597DiVA: diva2:1103337
Note

Validerad;2017;Nivå 2;2017-05-29 (andbra)

Available from: 2017-05-30 Created: 2017-05-30 Last updated: 2017-11-24Bibliographically approved

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Orosz, KatalinCwircen, Andrzej

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