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Stresses due to temperature changes in restrained ring tests

Title: Stresses due to temperature changes in restrained ring tests
Author(s): S. Eppers, C. Müller
Paper category : conference
Book title: International RILEM Conference on Use of Superabsorbent Polymers and Other New Additives in Concrete
Editor(s): O.M. Jensen, M.T. Hasholt and S. Laustsen
Print-ISBN: 978-2-35158-104-9
e-ISBN: 978-2-35158-105-6
Publisher: RILEM Publications SARL
Publication year: 2010
Pages: 57 - 66
Total Pages: 10
Nb references: 18
Language: English

Abstract: Previous restrained ring tests either were carried out under quasi-isothermal conditions or the influence of temperature changes was neglected. This limitation hampers the investigation of the autogenous shrinkage cracking propensity of concrete, especially that of ultra-high strength concrete being particularly prone to cracking at very early age. An analytical solution is presented serving to quantify the stress component in ring tests due to temperature changes. It considers the following input parameters: elastic modulus, coefficients of thermal expansion, autogenous shrinkage, degree of restraint and creep. The results of non-isothermal restrained ring tests are analyzed accordingly.

Online publication: 2010-10-04
Publication type : full_text
Public price (Euros): 0.00

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