Issue |
MATEC Web Conf.
Volume 403, 2024
SUBLime Conference 2024 – Towards the Next Generation of Sustainable Masonry Systems: Mortars, Renders, Plasters and Other Challenges
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Article Number | 05003 | |
Number of page(s) | 12 | |
Section | Structural and Functional Performance | |
DOI | https://doi.org/10.1051/matecconf/202440305003 | |
Published online | 16 September 2024 |
Comparative study of moisture absorption and resistance to NaCl salt of clay-based plasters incorporating porous aggregate
University of Birmingham, Birmingham, UK
* Corresponding author: l.kushnierova@bham.ac.uk
This study deals with the effects of expanded perlite and two types of clay (bentonite and kaolin) on adsorption behaviour of lightweight clay-cement based plasters and their resistance to the destructive impact of NaCl salt solution. In these plaster mixers cement is replaced by a 50% (vol.) kaolinite clay and bentonite content, as sand is replaced by a 100% (vol.) expanded perlite content. In this study such properties were examined as open porosity, bulk density, saturation moisture content, capillary absorption coefficient and salt resistance. The results indicate that the incorporation of both clay and perlite allows for the production of plasters with a bulk weight and porosity reduction of 100% and 400% respectively. The ability to absorb salt solution increases with incorporating of expanded perlite. Bentonite incorporating plasters show the lowest salt resistance in comparison with kaolinite clay.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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