Microstructural changes in building materials after various consolidation treatments studied by small-angle neutron scattering, mercury intrusion porosimetry and scanning electron microscopy

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F23%3A00575353" target="_blank" >RIV/61389005:_____/23:00575353 - isvavai.cz</a>

Alternative codes found

RIV/68378297:_____/23:00575353

Result on the web

<a href="https://doi.org/10.1107/S1600576723005320" target="_blank" >https://doi.org/10.1107/S1600576723005320</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1107/S1600576723005320" target="_blank" >10.1107/S1600576723005320</a>

Result language

angličtina

Original language name

Microstructural changes in building materials after various consolidation treatments studied by small-angle neutron scattering, mercury intrusion porosimetry and scanning electron microscopy

Original language description

Stone or rendered facades of historical buildings often encounter loss of cohesion after long-term weathering. Specialist consolidating agents containing nanoparticles which can penetrate the degraded layer are used to extend the lifetime of such facades. Clay mortar prepared in the laboratory was used in the present study as a material for testing the effectiveness of several consolidating agents. Changes in porosity after treatment of the sample layers were assessed using small-angle neutron scattering, mercury intrusion porosimetry and scanning electron microscopy techniques. The scattering differed for the various samples, mainly in the medium range of scattering vector magnitudes. The cause of the scattering was ascribed to three populations of pores: large (micrometres), medium-sized (thousands of angstroms) and small (hundreds of angstroms). While the non-treated sample and the sample treated with a silicic acid ester-based product do not exhibit significant differences, the sample treated with a nano-lime suspension shows a decrease of 16% in the volume fraction of medium-sized pores. A difference was also observed in the sample treated with a dihydrogen ammonium phosphate solution: the size of the medium pores increased while their volume fraction decreased, and a change in the large pores was observed. The modelled small pores remained unaffected by the consolidating treatment.

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

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project

<a href="/en/project/EF16_013%2F0001812" target="_blank" >EF16_013/0001812: Center of Accelerators and Nuclear Analytical Methods - OP</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

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

Name of the periodical

Journal of Applied Crystallography

ISSN

0021-8898

e-ISSN

1600-5767

Volume of the periodical

56

Issue of the periodical within the volume

4

Country of publishing house

GB - UNITED KINGDOM

Number of pages

12

Pages from-to

976-987

UT code for WoS article

001046279800007

EID of the result in the Scopus database

2-s2.0-85168081495