Sodium sulphate test on lime-based mortars: attaining degraded material to test conservation products and assessing salt resistance

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F14%3A00434409" target="_blank" >RIV/68378297:_____/14:00434409 - isvavai.cz</a>

Výsledek na webu

<a href="http://193.175.110.91/repository/images/f/f0/28_SWBSS-2014_Nunes_etal.pdf" target="_blank" >http://193.175.110.91/repository/images/f/f0/28_SWBSS-2014_Nunes_etal.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Sodium sulphate test on lime-based mortars: attaining degraded material to test conservation products and assessing salt resistance

Popis výsledku v původním jazyce

Four mortar mixtures were subjected to a sodium sulphate test, formulated to obtain degraded material for the further testing of conservation products and to estimate its salt resistance based on their hydric and hygric parameters. The ageing test involves cyclic conversion of thenarditemirabilite. The cycle comprises of: the drying stage, salt absorption by capillarity, cooling and finally a total immersion in water. Water absorption by capillarity and microporosity determined by mercury porosimetry, were found to have a significant effect on the amount of salt absorbed consequently reflecting the induced damage. The experimental results support the theoretical view that micropores smaller than 0.1 ?m in radius have a critical influence on the damageinduced by sodium sulphate. Lime-metakaolin mortar proved to be extremely salt-susceptible in respect to lime mortar. The addition of linseed oil to both lime and lime-metakaolin mortar improved the salt resistance of both materials by gr

Název v anglickém jazyce

Sodium sulphate test on lime-based mortars: attaining degraded material to test conservation products and assessing salt resistance

Popis výsledku anglicky

Four mortar mixtures were subjected to a sodium sulphate test, formulated to obtain degraded material for the further testing of conservation products and to estimate its salt resistance based on their hydric and hygric parameters. The ageing test involves cyclic conversion of thenarditemirabilite. The cycle comprises of: the drying stage, salt absorption by capillarity, cooling and finally a total immersion in water. Water absorption by capillarity and microporosity determined by mercury porosimetry, were found to have a significant effect on the amount of salt absorbed consequently reflecting the induced damage. The experimental results support the theoretical view that micropores smaller than 0.1 ?m in radius have a critical influence on the damageinduced by sodium sulphate. Lime-metakaolin mortar proved to be extremely salt-susceptible in respect to lime mortar. The addition of linseed oil to both lime and lime-metakaolin mortar improved the salt resistance of both materials by gr

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

2014

Kód důvěrnosti údajů

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

Název statě ve sborníku

SWBSS 2014. 3rd international conference on salt weathering of buildings and stone sculptures

ISBN

978-2-930054-24-7

ISSN

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e-ISSN

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Počet stran výsledku

16

Strana od-do

389-404

Název nakladatele

Royal Institute for Cultural Heritage KIK

Místo vydání

Brusel

Místo konání akce

Brusel

Datum konání akce

14. 10. 2014

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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