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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

21001 - Nano-materials (production and properties)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2019

Confidentiality

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

Article name in the collection

WIT Transactions on The Built Environment

ISBN

978-1-78466-359-9

ISSN

1743-3509

e-ISSN

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Number of pages

9

Pages from-to

359-367

Publisher name

WITPress

Place of publication

Southampton

Event location

Seville

Event date

Oct 7, 2019

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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