Impact of recycled aggregate in concrete on the evolution of the free deformation

Author(s): Brice Delsaute, Stéphanie Staquet
Paper category: Proceedings
Book title: Proceedings of the 2nd International RILEM/COST Conference on Early Age Cracking and Serviceability in Cement-based Materials and Structures Volume 1
Editor(s): Stéphanie Staquet and Dimitrios Aggelis
ISBN:978-2-35158-199-5
e-ISBN:978-2-35158-198-8
Publisher: RILEM Publications SARL
Publication year: 2017
Pages: 197-202
Total Pages: 6
Language : English

Abstract: This paper aims at identifying the effect of the substitution of natural aggregates by recycled aggregates on the early age development of the autogenous strain and the coefficient of thermal expansion (CTE) since setting. It is observed that the high porosity and the subsequent internal curing effect provided by recycled aggregate lead to a high decrease of the autogenous shrinkage and to the fact that the CTE magnitude can strongly increase (up to 50%) when natural aggregate is replaced by recycled aggregate.

Online publication : 2017
Publication type : full_text
Public price (Euros) : 0.00