Rheology of geopolymer: comparative study between Portland cement and metakaolin based geopolymer

Author(s): A. Favier, J. Hot, G. Habert, J.B. d’Espinose de Lacaillerie, N. Roussel
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: 49-56
Total Pages: 8
Language: English

Abstract: 
Metakaolin based geopolymers are presented in many studies as an alternative to normal Portland cement. Previous studies have focused on their chemical and mechanical properties, their microstructures and their potential uses, but very few on their rheological behaviour.

Our work highlights the main differences that exist between geopolymer and Portland cement. These materials behave as Newtonian fluids as the colloidal interactions between particles are dominated by the hydrodynamic effects, which are mainly controlled by the high viscosity of the alkaline silicate solution ant not by the contribution of direct contacts between Metakaolin grains.

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