Detail publikace

Dry pressed ceramic tiles based on fly ash-clay body: influence of fly ash granulometry and pentasodium triphosphate addition

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

Anglický název

Dry pressed ceramic tiles based on fly ash-clay body: influence of fly ash granulometry and pentasodium triphosphate addition

Jazyk

en

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.

Anglický 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.

Dokumenty

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",
  annote="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.",
  address="Elsevier",
  chapter="48503",
  institution="Elsevier",
  journal="Ceramics International",
  number="1",
  volume="38",
  year="2010",
  month="january",
  pages="215--221",
  publisher="Elsevier",
  type="journal article - other"
}