Effect of temperature on rheological properties of alkali activated brick powder based pastes

Author(s): Martin Vyšvařil, Pavla Rovnaníková
Paper category: Proceedings
Book title: SynerCrete’18: Interdisciplinary Approaches for Cement-based Materials and Structural Concrete: Synergizing Expertise and Bridging Scales of Space and Time Vol. 1 & 2
Editor(s): Miguel Azenha, Dirk Schlicke, Farid Benboudjema, Agnieszka Jędrzejewska
ISBN: 978-2-35158-202-2
e-ISBN: 978-2-35158-203-9
Publisher: RILEM Publications SARL
Publication year: 2018
Pages: 437-442
Total Pages: 6
Language : English

Abstract: The effect of temperature on flow properties and viscoelastic properties of brick powder based pastes prepared by alkaline activation of red clay brick waste is monitored in this paper. A different effect of temperature with respect to its classic rheological influence was ascertained. Elevated temperature has a considerable impact on the yield stress, viscosity and thixotropy of brick pastes, which turn to be more pseudoplastic and rheopectic. Raising temperature accelerates the geopolymer curing kinetics and contributes to the more rigid structure of the resulting geopolymeric gel.

Online publication : 2018
Publication type : full_text
Public price (Euros) : 0.00