Comparative study of moisture absorption and resistance to NaCl salt of clay-based plasters incorporating porous aggregate

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.) kaolin...

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Bibliographic Details
Published inMATEC Web of Conferences Vol. 403; p. 5003
Main Authors Kushnierova, Liliia, Ghiassi, Bahman, Khine, Myat
Format Journal Article Conference Proceeding
LanguageEnglish
Published Les Ulis EDP Sciences 2024
Subjects
Absorptivity
Adsorption
Bentonite
Bulk density
Cement
Clay
Comparative studies
Drinking water
Impact resistance
Kaolin
Kaolinite
Mixers
Moisture absorption
Moisture content
Moisture resistance
Particle size
Perlite
Plasters
Porosity
Saline solutions
Sodium chloride
United Kingdom > UK
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Summary: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.
ISSN:2261-236X
2274-7214
2261-236X
DOI:10.1051/matecconf/202440305003