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

Kód výsledku v 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>

Výsledek na webu

<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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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

AL - Umění, architektura, kulturní dědictví

OECD FORD obor

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Projekt

<a href="/cs/project/DF11P01OVV008" target="_blank" >DF11P01OVV008: Vysokohodnotné a kompatibilní vápenné malty pro extrémní aplikaci při restaurování, opravách a preventivní údržbě architektonického dědictví</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

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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Počet stran výsledku

10

Strana od-do

851-860

Název nakladatele

Green Lines Instituto para o Desenvolvimento Sustentável

Místo vydání

Barcelos

Místo konání akce

Porto

Datum konání akce

22. 7. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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