Étude expérimentale du retrait endogène restreint au jeune âge

Title: Étude expérimentale du retrait endogène restreint au jeune âge
Author(s): M. Pigeon, G. Toma, J. Marchand, B. Bissonnette
Paper category : journal
Serial title: Materials and Structures
Abreviated Serial title: Mater. Struct.
ISSN: 1359-5997
Publisher: RILEM Publications SARL
Volume: 36
Issue: 264
Issue date: 2003-12-01
Publication year: 2003
Pages: 666 - 672
Total Pages: 7
Nb references: 15
Language: French

Abstract: Autogenous shrinkage can increase the risk of early age cracking.
An experimental device that allows the study of the behavior of early age concrete was recently built at Laval University (Canada).
The first results that have been obtained show clearly the importance of the phenomena of relaxation caused by viscous deformations, particularly during the first 24 hours.
They also show that the stress generated by the restrained shrinkage strain at 7 days varies quite significantly with the concrete composition (parameters investigated: cement type, water to binder ratio, and degree of saturation of aggregates upon mixing).
For some concretes, stresses reaching up to 40% of the ultimate tensile stress were recorded.

Online publication: 2003-10-27
Classification: Scientific Reports
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/13783