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Recommendation of RILEM TC 271-ASC: New accelerated test procedure for the assessment of resistance of natural stone and fired-clay brick units against salt crystallization
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SYSNO ASEP 0573387 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Recommendation of RILEM TC 271-ASC: New accelerated test procedure for the assessment of resistance of natural stone and fired-clay brick units against salt crystallization Tvůrce(i) Lubelli, B. (NL)
Rörig-Daalgard, I. (DK)
Aguilar, A. M. (CH)
Aškrabić, M. (RS)
Beck, K. (FR)
Bläuer, C. (CH)
Cnudde, V. (BE)
D’Altri, A. M. (IT)
Derluyn, H. (FR)
Desarnaud, J. (BE)
Diaz Gonçalves, T. (PT)
Flatt, R. (CH)
Franzoni, E. (IT)
Godts, S. (BE)
Gulotta, D. (US)
van Hees, R. (NL)
Ioannou, I. (CY)
Kamat, A. (NL)
de Kock, T. (BE)
Menéndez, B. (FR)
de Miranda, S. (IT)
Nunes, Cristiana Lara (UTAM-F) RID, ORCID, SAI
Sassoni, E. (IT)
Shahidzadeh, N. (NL)
Seidel, H. (DE)
Slížková, Zuzana (UTAM-F) RID, SAI, ORCID
Stefanidou, M. (GR)
Theodoridou, M. (GB)
Veiga, R. (PT)
Vergès-Belmin, V. (FR)Celkový počet autorů 30 Číslo článku 101 Zdroj.dok. Materials and Structures. - : Springer - ISSN 1359-5997
Roč. 56, č. 5 (2023)Poč.str. 12 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. DE - Německo Klíč. slova recommendation ; salt crystallization test ; RILEM TC 271-ASC ; sodium sulfate ; sodium chloride Obor OECD Materials engineering Způsob publikování Open access Institucionální podpora UTAM-F - RVO:68378297 UT WOS 000995325300002 EID SCOPUS 85160211346 DOI 10.1617/s11527-023-02158-0 Anotace This recommendation is devoted to testing the resistance of natural stone and fired-clay brick units against salt crystallization. The procedure was developed by the RILEM TC 271-ASC to evaluate the durability of porous building materials against salt crystallization through a laboratory method that allows for accelerated testing without compromising the reliability of the results. The new procedure is designed to replicate salt damage caused by crystallization near the surface of materials as a result of capillary transport and evaporation. A new approach is proposed that considers the presence of two stages in the salt crystallization test. In the first, the accumulation stage, salts gradually accumulate on or near the surface of the material due to evaporation. In the second, the propagation stage, damage initiates and develops due to changes in moisture content and relative humidity that trigger salt dissolution and crystallization cycles. To achieve this, two types of salt were tested, namely sodium chloride and sodium sulphate, with each salt tested separately. A methodology for assessing the salt-induced damage is proposed, which includes visual and photographical observations and measurement of material loss. The procedure has been preliminarily validated in round robin tests. Pracoviště Ústav teoretické a aplikované mechaniky Kontakt Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Rok sběru 2024 Elektronická adresa https://doi.org/10.1617/s11527-023-02158-0
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