The Effect of Temperature on Strength - Porosity Relationship for Concrete

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F04%3A01099227" target="_blank" >RIV/68407700:21110/04:01099227 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
The Effect of Temperature on Strength - Porosity Relationship for Concrete
Original language description
In this paper, the unsealed concrete samples are tested to determine the compressive strengths and porosities while hot at various temperatures ranging from 25 to 280 °C. All measurements have been carried out after cooling the of the material. Porosityof the same concrete was measured using high-pressure mercury porosimetry, performed on a set of small-drilled fragments (of the average volume 0.5 cm3) of hardened cement paste. While the concrete at the age of 90 days exhibits expected dependency between compressive strength S and porosity P (i.e., S to be a decreasing function of P), specimens at the age of 28 days behave exactly conversely in this sense. Consequently, it seems to be that for the latter case the porosity does not influence dominantlythe strength of concrete
Czech name
Vliv teploty na závislost pevnost - porozita v betonu
Czech description
Na betonových vzorcích byla stanovena pevnost v tlaku a porozita v teplotním rozmezí 25°C až 280°C. Beton ve stáří 90 dní vykazuje očekávanou závislost mezi pevností a porozitou (pevnost klesá s rostoucí porozitou). U vzorků starých 28 dní je sledovaná závislost opačná

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JI - Composite materials
OECD FORD branch
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Publication year
2004
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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