JOCET 2013 Vol. 1(3): 211-215 ISSN: 1793-821X
DOI: 10.7763/JOCET.2013.V1.48
Abstract—This study examines potential waste diatomite and
coal fly ash reuse to prepare water absorption and retain
porous ceramics. The operating conditions are constant
pressure (5 MPa), sintering temperature (1000-1270°C),
sintering time (2 h), waste diatomite containing coal fly ash at
different proportions (0-20%), respectively. The porous
ceramic samples containing coal fly ash show low thermal
conductivity properties (0.278-0.349 W/mK), probably owing to
the more pores than those in the concrete (1.458 W/mK). Water
release (t1/2 value) by the porous ceramic samples is
decelerated by porous ceramic samples containing coal fly ash,
due to the synergy effect of high water absorption by the coal fly
ash and better than in the foamed glass material (4 h). Porous
ceramic samples containing coal fly ash is highly promising for
use in water absorption and retention applications.
Index Terms—Coal fly ash, compressive strength, diatomite,
porous ceramics
Kae-Long Lin and Ju-Ying Lan are with the Department of
Environmental Engineering, National I-Lan University, I-Lan, Taiwan
(e-mail: kllin@niu.edu.tw, doris_tension@hotmail.com)
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Cite:Kae-Long Lin and Ju-Ying Lan, "Water Retention Characteristics of Porous Ceramics
Produced from Waste Diatomite and Coal Fly Ash," Journal of Clean Energy Technologies vol. 1, no. 3, pp. 211-215, 2013.
