Utilisation of cement-asbestos wastes by thermal treatment and the potential possibility use of obtained product for the clinker bricks manufacture

The aim of this study was to investigate the thermal behaviour of cement-asbestos wastes and to determine whether it is possible to use them in the production of building ceramics, e.g. clinker bricks. In the first part of the research, the process of cement-asbestos thermal decomposition was studie...

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Bibliographic Details
Published in:Journal of materials science 2015-10, Vol.50 (20), p.6757-6767
Main Authors: Kusiorowski, Robert, Zaremba, Teresa, Piotrowski, Jerzy, Podwórny, Jacek
Format: Article
Language:English
Subjects:
Asbestos
Bricks
Cement
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Chrysotile
Classical Mechanics
Clinker
Compacts
Crocidolite
Crystallography and Scattering Methods
Heat treatment
manufacturing
Materials Science
Original Paper
Polymer Sciences
Raw materials
Roasting
Solid Mechanics
temperature
Thermal decomposition
thermal degradation
thermal properties
Thermodynamic properties
Wastes
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Summary:The aim of this study was to investigate the thermal behaviour of cement-asbestos wastes and to determine whether it is possible to use them in the production of building ceramics, e.g. clinker bricks. In the first part of the research, the process of cement-asbestos thermal decomposition was studied. This asbestos material contained the chrysotile and crocidolite variety of asbestos. The results of this study allowed to determine the lowest temperature of thermal treatment that provides asbestos detoxification. The second part of the paper presents the results of a preliminary study on using previously calcined cement-asbestos wastes as an additive to ceramic masses typical for clinker bricks. Green compacts containing various amounts of cement-asbestos wastes were sintered and then ceramic properties were determined. The results of the study indicate that calcined asbestos-containing materials can be used as one of the secondary raw materials in the production of clinker ceramics.
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-015-9231-6