Lime-based repair mortars with water-repellent admixtures: laboratory durability assessment

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F15%3A00446816" target="_blank" >RIV/68378297:_____/15:00446816 - isvavai.cz</a>
Result on the web
<a href="http://rehab.greenlines-institute.org/en/book-of-proceedings" target="_blank" >http://rehab.greenlines-institute.org/en/book-of-proceedings</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Lime-based repair mortars with water-repellent admixtures: laboratory durability assessment
Original language description
Conservation of architectural structures using lime binders is currently an important research topic aiming compatibility, durability and sustainability. In this study, lime (L) and lime-metakaolin (LM) mortars were prepared with the addition of water-repellent admixtures: linseed oil, stand oil and a silane based water-repellent. Experimental results demonstrate that oil imparts higher hydrophobicity to both L and LM mixtures. Durability was assessed through freeze-thaw and NaCl crystallization cycles. Stand oil granted higher frost resistance to LM mortar, whereas in L mixture it was the linseed oil which granted better performance. L mortars with oil showed better results towards NaCl crystallization cycles, whereas silane was better for the LM mixture. The results point out that the selection of a water-repellent admixture must be done according to the type of binder and to the most important weathering phenomena acting where the materials are to be applied. The results indicate that linseed oil can be an environmentally- friendly alternative to synthetic water-repellents.
Czech name
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Czech description
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Project
<a href="/en/project/DF11P01OVV008" target="_blank" >DF11P01OVV008: High-performance and compatible lime mortars for extreme application in restoration, repair and preventive maintenance of architectural heritage</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
REHAB 2015. Proceedings of the 2nd International conference on preservation, maitenance and rehabilitation of historical structures.
ISBN
978-989-8734-07-5
ISSN
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e-ISSN
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Number of pages
10
Pages from-to
851-860
Publisher name
Green Lines Instituto para o Desenvolvimento Sustentável
Place of publication
Barcelos
Event location
Porto
Event date
Jul 22, 2015
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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