Consolidation of natural stone with calcium hydroxide nanosuspension in ethanol and verification of surface hardening rate

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F19%3A63526462" target="_blank" >RIV/70883521:28610/19:63526462 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.witpress.com/elibrary/wit-transactions-on-the-built-environment/191/37514" target="_blank" >https://www.witpress.com/elibrary/wit-transactions-on-the-built-environment/191/37514</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2495/STR190311" target="_blank" >10.2495/STR190311</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Consolidation of natural stone with calcium hydroxide nanosuspension in ethanol and verification of surface hardening rate

Popis výsledku v původním jazyce

The modern consolidating agents, used in the care of cultural heritage for the past 20 years, include dispersion and colloid systems of not only organic consolidants, but also mineral systems with particle sizes in nano-dimensions. Among these materials, calcium hydroxide nanodispersion plays an important role. The compatibility of the consolidant with the lime-based original building material, deep penetration due to the particle size, and no mobilisation of soluble salts are advantages attributed to alcoholic lime nanodispersions. The assessment of the consolidating efficiency of the tested products are based on performance of both the destructive and the non-destructive laboratory tests. The penetration depth, thermal and moisture expansion, material strength, abrasion, modulus of elasticity, vapor permeability, microstructure (porosity, pore distribution and interconnection) and density can be listed as monitored criteria. For historical material is also important to monitor the change of color or texture on visible surface of the material. The paper presents a partial result of the NAKI II DG16P02M005 research project dealing with the verification of potential use of selected lime nanosuspensions (newly prepared calcium hydroxide nanosuspensions in alcohols and market available lime-nanodispersion CaLoSiL®) for the consolidation of historic lime based materials. The paper presents a comparative laboratory and experimental study on the effects of three different calcium hydroxide based agents on consolidating a porous limestone.

Název v anglickém jazyce

Consolidation of natural stone with calcium hydroxide nanosuspension in ethanol and verification of surface hardening rate

Popis výsledku anglicky

The modern consolidating agents, used in the care of cultural heritage for the past 20 years, include dispersion and colloid systems of not only organic consolidants, but also mineral systems with particle sizes in nano-dimensions. Among these materials, calcium hydroxide nanodispersion plays an important role. The compatibility of the consolidant with the lime-based original building material, deep penetration due to the particle size, and no mobilisation of soluble salts are advantages attributed to alcoholic lime nanodispersions. The assessment of the consolidating efficiency of the tested products are based on performance of both the destructive and the non-destructive laboratory tests. The penetration depth, thermal and moisture expansion, material strength, abrasion, modulus of elasticity, vapor permeability, microstructure (porosity, pore distribution and interconnection) and density can be listed as monitored criteria. For historical material is also important to monitor the change of color or texture on visible surface of the material. The paper presents a partial result of the NAKI II DG16P02M005 research project dealing with the verification of potential use of selected lime nanosuspensions (newly prepared calcium hydroxide nanosuspensions in alcohols and market available lime-nanodispersion CaLoSiL®) for the consolidation of historic lime based materials. The paper presents a comparative laboratory and experimental study on the effects of three different calcium hydroxide based agents on consolidating a porous limestone.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název statě ve sborníku

WIT Transactions on The Built Environment

ISBN

978-1-78466-359-9

ISSN

1743-3509

e-ISSN

—

Počet stran výsledku

9

Strana od-do

359-367

Název nakladatele

WITPress

Místo vydání

Southampton

Místo konání akce

Seville

Datum konání akce

7. 10. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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