Investigation of nano‑microstructural changes in Maastricht limestone after treatment with nanolime suspension

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F20%3A00524121" target="_blank" >RIV/68378297:_____/20:00524121 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1007/s00339-020-03567-6" target="_blank" >https://doi.org/10.1007/s00339-020-03567-6</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00339-020-03567-6" target="_blank" >10.1007/s00339-020-03567-6</a>

Result language

angličtina

Original language name

Investigation of nano‑microstructural changes in Maastricht limestone after treatment with nanolime suspension

Original language description

Nanolimes are dispersions of nanosized Ca(OH)2 particles in alcohols often used for the consolidation of various types of cultural heritage objects. The consolidation effect is based on the transformation of Ca(OH)2 into CaCO3 phases during carbonation process. The detection of microstructural changes consequent to a consolidating treatment (essential to evaluate its effectiveness) was approached adopting the innovative combination of two advanced techniques, covering a range in pore size from the nanometric to the millimetric scale: small-angle neutron scattering (SANS) and synchrotron X-ray microcomputed tomography (μ-CT). The changes in the 3D microstructure of samples of Maastricht limestone, a well-known weak stone material considered as a sort of ‘standard’ in cultural heritage conservation studies, pure and treated with nanolime dispersions, have been described in a fully non-invasive fashion, overcoming the limitation of previous approaches. The application of nanolime resulted to have a limited positive effect in reducing the fine porosity. Its time evolution was attributed to the progress of the carbonation reaction. On the contrary, the treatment produced positive effects on the porosity in the size range covered with μ-CT, reducing the pore accessibility between 30 and 65 μm, suggesting an improvement of the mechanical properties. The combined use of SANS and μ-CT represents and novel methodological approach in support of cultural heritage conservation works.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20506 - Coating and films

Project

<a href="/en/project/GA17-05030S" target="_blank" >GA17-05030S: The influence of the reaction conditions on the formation and mechanical properties of CaCO3 polymorphs in lime-based building materials</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

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

Name of the periodical

Applied Physics A - Materials Science & Processing

ISSN

0947-8396

e-ISSN

—

Volume of the periodical

126

Issue of the periodical within the volume

5

Country of publishing house

DE - GERMANY

Number of pages

8

Pages from-to

367

UT code for WoS article

000528557000001

EID of the result in the Scopus database

2-s2.0-85084007087