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BODNÁROVÁ, L. HROUDOVÁ, J. ZACH, J. SOVOVÁ, K.
Originální název
Determination of Thermal Conductivity on Lightweight Concretes
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
Originální abstrakt
A range of testing methods were used to study the potential structural changes as a result of the effects of high temperatures on lightweight types of concrete developed above all for fire resistant structures. One such test for monitoring changes in concrete structures is the non-stationary determination of the coefficient of thermal conductivity using the hot wire method. The matrix structure progressively collapses as a result of the effects of high temperatures on the concrete structure´s surface because erosion takes place of the matrix and aggregate porous structures. The degradation of the porosity of the concrete results in the deterioration of its thermal insulating properties. This paper assesses the dependence of the thermal conductivity coefficient of lightweight concretes on temperature and determines the potential occurrence of structural changes in the lightweight concrete matrix. The results were verified using other methods to determine the concrete´s resistance to thermal load.
Klíčová slova
Concrete, lightweight aggregate, thermal conductivity, fire safety, cement, fibres.
Autoři
BODNÁROVÁ, L.; HROUDOVÁ, J.; ZACH, J.; SOVOVÁ, K.
Vydáno
27. 1. 2016
Nakladatel
Trans Tech Publications
Místo
Švýcarsko
ISBN
978-3-03835-579-3
Kniha
Special Concrete and Composites 2015
Edice
Pavel Reiterman
ISSN
1013-9826
Periodikum
Key Engineering Materials (print)
Stát
Švýcarská konfederace
Strany od
163
Strany do
168
Strany počet
6
BibTex
@inproceedings{BUT119313, author="Lenka {Bodnárová} and Jitka {Peterková} and Jiří {Zach} and Kateřina {Sovová}", title="Determination of Thermal Conductivity on Lightweight Concretes", booktitle="Special Concrete and Composites 2015", year="2016", series="Pavel Reiterman", journal="Key Engineering Materials (print)", pages="163--168", publisher="Trans Tech Publications", address="Švýcarsko", doi="10.4028/www.scientific.net/KEM.677.163", isbn="978-3-03835-579-3", issn="1013-9826" }