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Mitamura, Hisayoshi; Bamba, Tsunetaka; Maeda, Toshikatsu
Nihon Seramikkusu Kyokai Gakujutsu Rombunshi, 110(1277), p.55 - 59, 2002/01
Times Cited Count:1 Percentile:19.97(Materials Science, Ceramics)Influence of additives and hot-pressing temperature on properties of the synthetic rock was investigated, which was developed for making harmless and stabilizing fly ash from municipal waste incinerator. Sintering test at 1200C for 16 h revealed that addition of 20 and 1.5 wt% of TiO
and Na
O, respectively, is necessary for preparation of dense products. X-ray diffractometry showed that these additives promoted the formation of perovskite (CaTiO
) and gehlenite (Ca
Al
SiO
) minerals. During hot pressing, bulk density of the synthetic rock increased steeply with temperature between 1000 and 1100
C. On the other hand, its open porosity decreased rapidly with temperature between 1050 and 1150
C. These facts imply that the temperature of 1100
150
C is practical in hot pressing of fly ash.
Yanase, Shinichiro*; Sugitsue, Noritake; Ishimori, Yuu; Yokoyama, Kaoru; Ohara, Yoshiyuki; Takahashi, Nobuo; Rong, D.*; Takeda, Hiroshi*; Kochi, Toshinori*; Takami, Toshihiro*; et al.
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no abstracts in English