Effect of calcite on the Brick Body Closing

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F10%3APU88880" target="_blank" >RIV/00216305:26110/10:PU88880 - 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 calcite on the Brick Body Closing

Original language description

The impermeability to water is an important property of clay roof tiles. The decrease of the permeability of the brick body to water with the time is a typical feature of the brick body closing process. Thus, test samples from two different types of mixtures of raw materials for the production of clay roof tiles in the Czech Republic fired in a laboratory kiln at temperatures of 800, 900 and 1,000 C were tested with respect to their permeability to water and porosity. The brick body closing process especially is influenced by the content of free CaO. After firing at lower temperatures, the body based on brick clay with a high content of calcite shows a considerable closing. The body closing is caused by the hydration of free calcium oxide CaO originating from the calcite decomposition and from the formation of calcium hydrate Ca(OH)2 that closes the capillary pores in the body after increasing its volume compared to CaO.

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

JN - Civil engineering

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

INTERCERAM

ISSN

0020-5214

e-ISSN

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Volume of the periodical

59

Issue of the periodical within the volume

2

Country of publishing house

DE - GERMANY

Number of pages

5

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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