Assessment of salt distribution in Maastricht and Migné limestones with the use of micro-destructive techniques

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F21%3A00547453" target="_blank" >RIV/68378297:_____/21:00547453 - isvavai.cz</a>

Result on the web

<a href="https://books.bk.tudelft.nl/press/catalog/view/791/901/887-1" target="_blank" >https://books.bk.tudelft.nl/press/catalog/view/791/901/887-1</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Assessment of salt distribution in Maastricht and Migné limestones with the use of micro-destructive techniques

Original language description

The durability of building materials against salt crystallization is currently assessed using standardized and other accelerated weathering laboratory tests. However, these test methods usually do not simulate the performance of a material in practicenrealistically. Therefore, they do not always shed enough light on the evaluation of the salt crystallization phenomenon and the prevention of its damaging results. This study focuses on the use of two micro-destructive cutting techniques, based on the measurement of scratching and drilling resistance, to assess salt distribution within Maastricht and Migné limestones, following the procedure developed within the framework of RILEM TC ASC-271 activities for the accumulation of salts. Data collected on freshly quarried reference samples and samples contaminated with NaCl and Na2SO4 are presented. The results, which are entirely in line with complementary μ-XRF measurements, vividly show changes in the microstructure of the salt-contaminated samples. These changes, which are reflected in increased cutting resistance peaks, are consistent in both the scratching and drilling resistance patterns, and they suggest that salts accumulate at or near the evaporation surface of the test specimens, resulting in pore clogging.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

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

Article name in the collection

Proceedings of SWBSS 2021. Fifth International conference on salt weathering of buildings and stone sculptures

ISBN

978-94-6366-439-4

ISSN

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e-ISSN

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Number of pages

10

Pages from-to

153-162

Publisher name

TU Delft Open

Place of publication

Delft

Event location

Delft

Event date

Sep 22, 2021

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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