Publication detail

Thermal properties of alkali-activated aluminosilicate composite with lightweight aggregates at elevated temperatures

ZUDA, L. ROVNANÍK, P. BAYER, P. ČERNÝ, R.

Original Title

Thermal properties of alkali-activated aluminosilicate composite with lightweight aggregates at elevated temperatures

English Title

Thermal properties of alkali-activated aluminosilicate composite with lightweight aggregates at elevated temperatures

Type

journal article - other

Language

en

Original Abstract

Thermal diffusivity, specific heat capacity and linear thermal expansion coefficient of a lightweight composite with alkali-activated aluminosilicate binder and heat-resistant aggregate mixture of expanded vermiculite and electrical porcelain are measured in a wide temperature range. Experimental results show that the studied material has good prerequisites for high-temperature applications. The apparent thermal diffusivity at one-sided heating is significantly lower than at room temperature, and decreases for temperatures higher than 400 C. The effective specific heat capacity at elevated temperatures increases with temperature in almost the whole analyzed temperature range. The linear thermal expansion coefficient is substantially lower compared with common cement-based composites.

English abstract

Thermal diffusivity, specific heat capacity and linear thermal expansion coefficient of a lightweight composite with alkali-activated aluminosilicate binder and heat-resistant aggregate mixture of expanded vermiculite and electrical porcelain are measured in a wide temperature range. Experimental results show that the studied material has good prerequisites for high-temperature applications. The apparent thermal diffusivity at one-sided heating is significantly lower than at room temperature, and decreases for temperatures higher than 400 C. The effective specific heat capacity at elevated temperatures increases with temperature in almost the whole analyzed temperature range. The linear thermal expansion coefficient is substantially lower compared with common cement-based composites.

Keywords

alkali-activated aluminosilicate composites, vermiculite, thermal diffusivity, specific heat capacity, linear thermal expansion coefficient, elevated temperatures

RIV year

2011

Released

01.06.2011

Publisher

Wiley

Location

UK

ISBN

0308-0501

Periodical

FIRE AND MATERIALS

Year of study

35

Number

4

State

GB

Pages from

231

Pages to

244

Pages count

14

Documents

BibTex 


@article{BUT50966,
  author="Lucie {Zuda} and Pavel {Rovnaník} and Patrik {Bayer} and Robert {Černý}",
  title="Thermal properties of alkali-activated aluminosilicate composite with lightweight aggregates at elevated temperatures",
  annote="Thermal diffusivity, specific heat capacity and linear thermal expansion coefficient of a lightweight composite with alkali-activated aluminosilicate binder and heat-resistant aggregate mixture of expanded vermiculite and electrical porcelain are measured in a wide temperature range. Experimental results show
that the studied material has good prerequisites for high-temperature applications. The apparent thermal diffusivity at one-sided heating is significantly lower than at room temperature, and decreases for temperatures higher than 400 C. The effective specific heat capacity at elevated temperatures increases with
temperature in almost the whole analyzed temperature range. The linear thermal expansion coefficient is substantially lower compared with common cement-based composites.",
  address="Wiley",
  chapter="50966",
  institution="Wiley",
  journal="FIRE AND MATERIALS",
  number="4",
  volume="35",
  year="2011",
  month="june",
  pages="231--244",
  publisher="Wiley",
  type="journal article - other"
}