Long term deformations by creep and shrinkage in recycled aggregate concrete

ABOUT THE INTERNATIONAL CONCRETE ABSTRACTS PORTAL

  • The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

International Concrete Abstracts Portal

  


Title: Long term deformations by creep and shrinkage in recycled aggregate concrete

Author(s): A. Domingo, C. Lázaro, F. Gayarre, M. Serrano, C. López-Colina

Publication: RILEM

Volume: 43

Issue: 8

Appears on pages(s): 1147-1160

Keywords: Shrink, Creep, Recycled concrete, Recycled aggregate concrete

Date: 8/1/2010

Abstract:
The main aim of this work was to determine creep and shrinkage variations experienced in recycled concrete, made by replacing the main fraction of the natural aggregate with a recycled aggregate coming from waste concrete and comparing it to a control concrete. It was possible to state that the evolution of deformation by shrinkage and creep was similar to a conventional concrete, although the results after a period of 180 days showed the influence of the substitution percentage in the recycled aggregates present in the mixture. In the case when 100% coarse natural aggregate was replaced by recycled aggregate there was an increase in the deformations by creep of 51% and by shrinkage of 70% as compared to those experienced by the control concrete. The substitution percentages of coarse natural aggregate by coarse recycled aggregate were 20, 50 and 100%. Fine natural aggregate was used in all cases and the amount of cement and water–cement ratio remained constant in the mixture.


International union of laboratories and experts in construction materials, systems and structures, International Partner Access.

View Resource »