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THE EFFECT OF SALINIZATION AND SALT CRYSTALLIZATION ON THE TECHNICAL PARAMETERS OF LIGHTWEIGHT REPAIR MORTARS WITH EXPANDED GLASS GRANULES
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Zbysek Pavlik; Martina Zaleska; Milena Pavlikova; Adam Pivak; Anna-Marie Lauermannova
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10.5593/sgem2022/6.1
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1314-2704
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English
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22
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6.1
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• Prof. DSc. Oleksandr Trofymchuk, UKRAINE
• Prof. Dr. hab. oec. Baiba Rivza, LATVIA |
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The novel lightweight repair mortar was designed and tested in respect to its resistance against salt crystallization and salinization. Natural hydraulic lime was used as the only binder, and the expanded glass granules were applied as lightweight aggregate. As reference, control mortar with silica sand aggregate was examined as well. The performed tests and analyses were aimed at the assessment of the structural, mechanical, hygric, and thermal properties of the 28-days and 90-days hardened mortars. Specific attention was paid to the evaluation of salt crystallization resistance and measurement of the effect of salt presence on the mortars’ hygroscopicity, which were tested for 90-days samples only. The use of expanded glass granules in composition of natural hydraulic lime-based mortar led to its overall functional and technical improvements, i.e. high porosity, low density, sufficient mechanical strength, improved water absorption and transport, enhanced thermal insulation performance, increased hygroscopicity, and resistance against salt crystallization. Taking into account the compatibility, functional, and technical criteria, novel natural hydraulic lime-based lightweight mortar was classified as repair mortar providing enhanced thermal insulation function.
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conference
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Proceedings of 22nd International Multidisciplinary Scientific GeoConference SGEM 2022
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22nd International Multidisciplinary Scientific GeoConference SGEM 2022, 04 - 10 July, 2022
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Proceedings Paper
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STEF92 Technology
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International Multidisciplinary Scientific GeoConference SGEM
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SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Turkish Acad Sci.
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193-200
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04 - 10 July, 2022
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website
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8652
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repair mortar, natural hydraulic lime, expanded glass granules, salt crystallization resistance, hygroscopicity of salt contaminated samples
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