Effect of Temperature on Porosity of Concrete for Nuclear-Safety Structures

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F01%3A01065064" target="_blank" >RIV/68407700:21340/01:01065064 - 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

Effect of Temperature on Porosity of Concrete for Nuclear-Safety Structures

Original language description

Structure changes of the cement gels of concrete PENLY and TEMELIN are carried out under the influence of the heat load in the temperature range 25 - 910 oC. These changes are studied in the region of micro- and mesopores using the methods of physical adsorption of nitrogen and the mercury porosimetry. It was found out that the volume and surface of pores increase up to a temperature of 500 oC approx., corresponding to the decomposition of Ca(OH)2 on CaO. At the further increase of temperature, the volume and surface of pores decrease, so that the dependence of characteristic of pore space on temperature approximately parabolic. The causes of this phenomenon are discussed

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JI - Composite materials

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2001

Confidentiality

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

Name of the periodical

Cement and Concrete Research

ISSN

0008-8846

e-ISSN

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Volume of the periodical

31

Issue of the periodical within the volume

7

Country of publishing house

US - UNITED STATES

Number of pages

4

Pages from-to

1023-1026

UT code for WoS article

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EID of the result in the Scopus database

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