Alkali-activated aluminosilicate composite with heat-resistant lightweight aggregates exposed to high temperatures: mechanical and water transport properties

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F10%3A00161915" target="_blank" >RIV/68407700:21110/10:00161915 - isvavai.cz</a>

Alternative codes found

RIV/00216305:26110/10:PU84890

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Alkali-activated aluminosilicate composite with heat-resistant lightweight aggregates exposed to high temperatures: mechanical and water transport properties

Original language description

A lightweight composite material with alkali-activated aluminosilicate binder and a heat-resistant aggregate mixture of expanded vermiculite and electrical porcelain is investigated. Experimental results show that the studied material has very good high-temperature properties which are quite superior to Portland-cement concrete. The open porosity increases only up to 7 % between room temperature and 1000 °C. The material keeps 35 % of its original compressive strength and 66 % of its flexural strength even in the worst case of 800 °C pre-heating. After pre-heating to 1200 °C the compressive strength is found 30 % higher and flexural strength three-and-half times higher than in the reference state. Liquid moisture diffusivity is after the heat treatmentup to three orders of magnitude higher than in reference room-temperature conditions. The water vapor transport parameters allow fast removal of water vapor and other gaseous compounds over the whole studied heat-treatment range.

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

2010

Confidentiality

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

Name of the periodical

Cement and Concrete Composites

ISSN

0958-9465

e-ISSN

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Volume of the periodical

32

Issue of the periodical within the volume

2

Country of publishing house

GB - UNITED KINGDOM

Number of pages

7

Pages from-to

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UT code for WoS article

000274990600009

EID of the result in the Scopus database

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