81. Effects of curing time and drying behaviour of SCC in case of restrained shrinkage deformations

Title: 81. Effects of curing time and drying behaviour of SCC in case of restrained shrinkage deformations
Author(s): R. Loser, A. Leemann
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: 539 - 544
Total Pages: 6
Nb references: 12
Language: English

Abstract: Restrained shrinkage deformations can lead to cracks in concrete structures reducing their durability. As the concrete properties are an important parameter for stress development, SCC may show a different behaviour than CVC. In this study, a SCC and a CVC with comparable compressive and flexural strength are chosen in order to investigate the influence of drying and curing on cracking risk under restrained condition. The results show, that despite the higher shrinkage rate of SCC cracking risk is not always higher compared to CVC. Especially at slow drying velocities higher creep of SCC can reduce developing shrinkage stress and therefore reduce cracking risk of SCC.

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