Detail publikace

Determination of Thermal Conductivity on Lightweight Concretes

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"
}