89. Tensile deformation behaviour of self-compacting concrete under sustained loading

Title: 89. Tensile deformation behaviour of self-compacting concrete under sustained loading
Author(s): H.W. Reinhardt, T. Wüstholz
Paper category : conference
Book title: 5th International RILEM Symposium on Self-Compacting Concrete
Editor(s): G. De Schutter and V. Boel
Print-ISBN: 978-2-35158-047-9
e-ISBN: 978-2-35158-088-2
Publisher: RILEM Publications SARL
Publication year: 2007
Pages: 591 - 598
Total Pages: 8
Nb references: 9
Language: English

Abstract: The deformation behaviour of self-compacting concretes of the compressive strength classes C30/37, C45/55 and C60/75 under sustained tensile loading was investigated up to 2.5 years. The long-term tensile strength was estimated to be 69% of the short-term tensile strength, determined at an age of 28 days. Load-free shrinkage has been measured. The usual way to determine creep is to subtract the measured shrinkage strain and the initial strain from the measured total strain. In doing so, a phenomenon was discovered which is called stressinduced shrinkage. It seemed that the stress-induced shrinkage tends to increase with decreasing compressive strength.

Online publication: 2009-06-16
Publication type : full_text
Public price (Euros): 0.00