Use of natural zeolite aggregate in restoration lime renders

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F19%3APU132672" target="_blank" >RIV/00216305:26110/19:PU132672 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Use of natural zeolite aggregate in restoration lime renders
Original language description
Natural zeolites have been used with limes already in the Roman times and its perspectives of effective use as a pozzolanic additive to lime or cement composites were studied by a number of authors. The use of zeolitic materials for the production of lightweight aggregates in concrete is already known. However, the application of natural zeolite as an aggregate in lime renders (suitable for restoration and conservation) has not been investigated yet. In this study, the utilization of natural zeolite as lightweight aggregate in lime renders and natural hydraulic lime renders has been investigated, therefore. The results revealed improved strengths of air lime renders with zeolite despite the fact, that the renders showed higher total porosity and water absorption than those with quartz aggregate. Increased porosity of renders resulted in improvement of their frost resistance and salt crystallization resistance. The analyzed renders with natural zeolite aggregate have a very good potential for practical applications because their properties are significantly enhanced, as compared with the common lime renders with quartz aggregate.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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