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MIZEROVÁ, C. ROVNANÍK, P. BAYER, P.
Original Title
Blended red brick powder/metakaolin geopolymers
Type
conference paper
Language
English
Original Abstract
The production of red-clay hollow bricks belongs to the sources of ceramic waste which is related to the current trend of utilization of the thin joint technology. Since the current technologies of hollow brick production do not enable to provide sufficiently smooth and even surfaces, the brick blocks have to be ground generating waste red brick powder. This product contains reactive aluminosilicate phases that can be used as precursors for the geopolymer binder. Geopolymers based on the blends of red brick powder and metakaolin having three different ratios of aluminosilicate components and two different alkaline activators were prepared. Substitution of metakaolin by red brick reduces the viscosity of a fresh mixture and diminishes the thixotropic behaviour of metakaolin geopolymer. Although the mechanical properties of pure red brick geopolymer are quite poor, the blends containing up to 50% of red brick show similar mechanical properties as pure metakaolin geopolymer.
Keywords
geopolymer; metakaolin; brick powder; rheology; microstructure
Authors
MIZEROVÁ, C.; ROVNANÍK, P.; BAYER, P.
Released
16. 9. 2019
Publisher
Research Institute of Binding Materials Prague
Location
Praha
ISBN
2523-935X
Periodical
5th International Congress on the Chemistry of Cement (ICCC 2019) Congress proceedings – Papers and Posters Proceedings
Year of study
1
Number
State
Czech Republic
Pages from
Pages to
8
Pages count
BibTex
@inproceedings{BUT159618, author="Cecílie {Mizerová} and Pavel {Rovnaník} and Patrik {Bayer}", title="Blended red brick powder/metakaolin geopolymers", booktitle="PAPERS AND POSTERS PROCEEDINGS 15th International Congress on the Chemistry of Cement", year="2019", journal="5th International Congress on the Chemistry of Cement (ICCC 2019) Congress proceedings – Papers and Posters Proceedings ", volume="1", number="1", pages="1--8", publisher="Research Institute of Binding Materials Prague", address="Praha", issn="2523-935X" }