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Effect of setting retarder on the early age deformations of self-compacting mortars



Title: Effect of setting retarder on the early age deformations of self-compacting mortars
Author(s): Pierre Mounanga, Ahmed Loukili, Marwen Bouasker, Abdelhafid Khelidj, Roger Coué
Paper category : conference
Book title: International RILEM Conference on Volume Changes of Hardening Concrete: Testing and Mitigation
Editor(s): O. M. Jensen, P. Lura, K. Kovler
Print-ISBN: 2-35158-004-4
e-ISBN: 2351580052
Publisher: RILEM Publications SARL
Publication year: 2006
Pages: 311 - 320
Total Pages: 10
Nb references: 14
Language: English


Abstract: This paper presents the results of an experimental study on the early age autogenous shrinkage of self-compacting mortars. Horizontal and vertical linear autogenous deformations are measured from the casting of the material to 48 hours of hydration. The effects of the curing temperature and setting retarder on the kinetics and magnitude of the deformations are analysed at 10, 20 and 30°C. The results show that the presence of set retarder leads to higher autogenous shrinkage, whatever the curing temperature. The combined effect of temperature and set retarding admixture on mortar’s length change was found to be too “unsystematic” to be predicted by the traditional maturity concept.


Online publication: 2006-07-30
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2351580052.033