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SOKOLÁŘ, R. SMETANOVÁ, L.
Originální název
Dry pressed ceramic tiles based on fly ash-clay body: influence of fly ash granulometry and pentasodium triphosphate addition
Typ
článek v časopise - ostatní, Jost
Jazyk
angličtina
Originální abstrakt
Fly ash from brown coal (70 wt.%) and stoneware clay (30 wt.%) were used for the dry pressed ceramic tiles (according to EN 14411) raw materials mixture. The effects of fly ash milling and pentasodium triphosphate addition as a deflocculant and fluxing agent on the properties of green body (flexural strength, bulk density) and fired body (EN ISO 10545 - water absorption, bulk density, true density, apparent porosity, flexural strength, frost resistance) were studied and explained as a function of the firing temperature (1000 - 1150 oC). Fly ash milling (corresponding to 5 wt.% residue of fly ash grains on 0.063 mm sieve) increased the sintering abilities of the fly ash - clay body. A similar effect was achieved by 1.3 wt.% pentasodium triphosphate (PST) addition with an increase in green body flexural strength and a decrease in water content of the granulate. Fly ash-clay bodies can be frost resistant with water absorption above 10 % thanks to positive pore size distribution, which were examined using the high pressure mercury porosimetry method.
Klíčová slova
ceramic tiles, fly ash, granulometry, pentasodium triphosphate, frost resistence, pore structure
Autoři
SOKOLÁŘ, R.; SMETANOVÁ, L.
Rok RIV
2010
Vydáno
5. 1. 2010
Nakladatel
Elsevier
Místo
Faenza
ISSN
0272-8842
Periodikum
Ceramics International
Ročník
38
Číslo
1
Stát
Spojené království Velké Británie a Severního Irska
Strany od
215
Strany do
221
Strany počet
7
BibTex
@article{BUT48503, author="Radomír {Sokolář} and Lenka {Smetanová}", title="Dry pressed ceramic tiles based on fly ash-clay body: influence of fly ash granulometry and pentasodium triphosphate addition", journal="Ceramics International", year="2010", volume="38", number="1", pages="215--221", issn="0272-8842" }