Influence of particle packing on the strength of ecological concrete

Author(s): S.A.A.M. Fennis, J.C. Walraven, J.A. den Uijl
Paper category: Conference
Book title: Concrete Repair, Rehabilitation and Retrofitting III (ICCRRR)
Editor(s): M.G. Alexander, H.-D. Beushausen, F. Dehn, P. Moyo
Print ISBN: 978-0-415-89952-9
Publisher: Taylor & Francis Group
Pages: 486- 487
Total Pages: 2
Language: English

Abstract: 
Energy consumption and CO2-emission of concrete can be reduced when cement is replaced by secondary materials such as residual products from other industries. However, for the application of such environmentally friendly concretes, predicting their performance is very important. In this article the relation between packing density and strength of mortar mixtures is presented. 50 mortar mixtures were tested on flow value and cube compressive strength at 7 and 28 days. The packing densities were calculated with the Compaction-Interaction Packing Model, using the experimentally determined packing densities of the cement, sand and quartz powder. The increased packing density in mixtures with fine quartz powder M600 resulted in a 14% strength increase compared to the reference mixture. The presented relationship between the cement spacing factor and strength can be used to design ecological concrete mixtures and predict their strength based on their packing density.

Online publication: 2014
Publication Type: abstract_only
Public price (Euros): 0.00