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Pro090

Rational use of flash metakaolin applied to industrial design of self-compacting concrete



Author(s): P. Diederich, R. Bucher, M. Mouret, M. Cyr, G. Escadeillas
Paper category: Conference
Book title: Rheology and processing of Construction Materials – 7th RILEM International Conference on Self-Compacting Concrete and 1st RILEM International Conference on Rheology and Processing of Construction Materials
Editor(s): Nicolas Roussel and Hela Bessaies-Bey
Print ISBN: 978-2-35158-137-7
e-ISBN: 978-2-35158-138-4
Publisher: RILEM Publications SARL
Pages: 83-90
Total Pages: 8
Language: English


Abstract: 
Supplementary cementitious materials (SCM) are becoming essential in the replacement of cement to reduce the cost and the environmental impact of concrete. Recently, metakaolin was introduced as a new compound in SCC design. The challenge of using metakaolin was the high water demand of this powder. This issue can be overcome by using both a lower purity metakaolin, reducing the water demand, and considering the higher water demand of this type of product in an appropriate way. This study is based on a design method adapted for the use of metakaolin as the only SCM in SCC. The diphasic approach consists of optimizing the quantity of water in the paste and aggregates. The results show that the design of SCC using several types of cements and for several cement replacement percentages with metakaolin is possible in a variety of cases, both in the laboratory and in industry.


Online publication: 2013
Publication Type: full_text
Public price (Euros): 0.00