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Naslov:Influence of the size and type of pores on brick resistance to freeze-thaw cycles
Avtorji:ID Netinger Grubeša, Ivanka (Avtor)
ID Vračević, Martina (Avtor)
ID Ducman, Vilma (Avtor)
ID Marković, Berislav (Avtor)
ID Szenti, Imre (Avtor)
ID Kukovecz, Ákos (Avtor)
Datoteke:URL URL - Izvorni URL, za dostop obiščite https://www.mdpi.com/1996-1944/13/17/3717
Opis: Odprti dostop
 
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Jezik:Angleški jezik
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:Logo ZAG - Zavod za gradbeništvo Slovenije
Povzetek:This paper estimates the frost resistance of bricks using the ratio of compressive strength before freezing to compressive strength after freezing to describe the damage degree of bricks being exposed to freeze-thaw cycles. In an effort to find the ratio that clearly distinguishes resistant bricks from non-resistant bricks, the authors attempted to establish the correlation between the ratio and Maage factor as a recognized model for assessing brick resistance. To clarify the degree of damage of individual bricks, the pore size distribution has been investigated by means of mercury porosimetry. Additionally, micro computed X-ray tomography (micro-CT) has been employed to define the influence of the type of pores (open or closed) and their connectivity on the frost resistance of bricks. According to the results, it can be concluded that there is a good correlation between the Maage factor and the ratio of pre- to post-freeze-thaw cycle compressive strengths, and that the latter ratio strongly correlates with the percentage of large pores (≥3 mm) in the brick. If such a correlation could be confirmed in a larger sample, then the ratio of pre- to post-freeze-thaw cycle compressive strengths could be used as a new method for assessing brick resistance to freeze-thaw cycles and it would be possible to determine the minimum percentage of large pores required to ensure the overall resistance of brick to freeze-thaw conditions. The complexity of the problem is, however, evidenced by the fact that no clear connection between the type (open versus closed) or connectivity of pores and the frost resistance of bricks could be revealed by micro-CT.
Ključne besede:clay masonry units, porosity, freeze-thaw resistance
Status publikacije:Objavljeno
Verzija publikacije:Objavljena publikacija
Datum objave:22.08.2020
Založnik:Molecular Diversity Preservation International
Leto izida:2020
Št. strani:str. 1-12
Številčenje:Vol. 13, iss. 17
PID:20.500.12556/DiRROS-16463 Novo okno
UDK:620.1/2
ISSN pri članku:1996-1944
DOI:10.3390/ma13173717 Novo okno
COBISS.SI-ID:26659075 Novo okno
Avtorske pravice:© 2020 by the authors. Licensee MDPI, Basel, Switzerland.
Opomba:Nasl. z nasl. zaslona; Opis vira z dne 31. 8. 2020; Št. članka 3717;
Datum objave v DiRROS:17.08.2023
Število ogledov:889
Število prenosov:481
Metapodatki:XML DC-XML DC-RDF
:
NETINGER GRUBEŠA, Ivanka, VRAČEVIĆ, Martina, DUCMAN, Vilma, MARKOVIĆ, Berislav, SZENTI, Imre in KUKOVECZ, Ákos, 2020, Influence of the size and type of pores on brick resistance to freeze-thaw cycles. Materials [na spletu]. 2020. Vol. 13, no. 17, p. 1–12. [Dostopano 18 april 2025]. DOI 10.3390/ma13173717. Pridobljeno s: https://dirros.openscience.si/IzpisGradiva.php?lang=slv&id=16463
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Naslov:Materials
Skrajšan naslov:Materials
Založnik:MDPI
ISSN:1996-1944
COBISS.SI-ID:33588485 Novo okno

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Financer:Drugi - Drug financer ali več financerjev
Številka projekta:GINOP-2.3.2-15-2016-0001
Naslov:Intelligent materials based on functional surfaces−from syntheses to applications
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Številka projekta:GINOP-2.3.3-15-2016-00010
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