Water permeability of self compacting concrete

Title: Water permeability of self compacting concrete
Author(s): K. Audenaert, G. De Schutter
Paper category : conference
Book title: International RILEM Symposium on Concrete Science and Engineering: A Tribute to Arnon Bentur
Editor(s): J. Weiss, K. Kovler, J. Marchand, and S. Mindess
Print-ISBN: None
e-ISBN: 2912143926
Publisher: RILEM Publications SARL
Publication year: 2004
Nb references: 13
Language: English

Abstract: Self compacting concrete (SCC) is a new kind of concrete that combines a high flowability and a high segregation resistance obtained by a large amount of fine particles and the use of superplasticizers. As the conception of SCC is totally different from traditional concrete, some changes in durability behaviour might occur. Therefore, insight in the basic transport properties, such as water/gas permeability, capillarity and diffusion, are of major importance for the understanding of the degradation mechanisms. In this project, water permeability tests were performed on 15 self compacting concrete mixtures and on 2 traditional concrete mixtures. The selection of the mixtures is made in order to consider some important parameters like the type of cement, type of filler, the cement/powder and water/cement ratio, the amount of water and the amount of powder. The results of this study are compared with models found in literature for traditional concrete which are based on parameters such as the W/C ratio and the compressive strength. A new model is proposed, valid for self compacting concrete and traditional concrete. This model is based on the capillary porosity and is giving good results.

Online publication: 2004-03-25
Classification: Applications
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2912143926.076