Crystallization behaviour of glasses produced from fly ash

Properties of lightweight aggregate produced by rapid sintering of incinerator bottom ash

“…It often occurs with calcite, tremolite, diopside, anorthite and a number of other rare calcium-magnesium silicate minerals (Deer et al, 1992). These mineral phases have also been reported to form in glass-ceramics produced by thermally treating mixes of a number of other municipal and industrial wastes including IBA, incinerator fly ash, coal fired power station fly ash, waste fluorescent glass and electric arc furnace dust (Boccaccini et al, 1995(Boccaccini et al, , 1997(Boccaccini et al, , 2000Erol et al, 2000Erol et al, , 2001Gao and Drummond, 1999;Öveçolu et al, 1997;Park and Heo, 2002;Rincón et al, 1999;Romero et al, 1999;Yun et al, 2002).…”

Glass-ceramics: Their production from wastes—A Review

“…The present review is concerned with reuse of waste materials to produce glass-ceramics. The versatility of the glass-ceramic production process is manifested by the many wastes that have been used as raw materials for glass-ceramics, which include coal fly ash [30][31][32][33], mud from zinc hydrometallurgy [34][35][36][37], slag from steel production [13,[38][39][40][41][42][43], ash and slag from waste incinerators [44][45][46][47][48][49][50][51][52][53][54][55][56][57], red mud from alumina production [58], waste glass from lamp and other glass products [59] as well as electric-arc furnace dust and foundry sands [60]. Much work has been carried out on the immobilisation of nuclear waste in glass and ceramic matrices and recently there has been some interest in the use of glass-ceramic matrices for this purpose [61,62].…”

Effect of TiO2 on crystallization of the glass ceramics prepared from granite tailings

“…Table 4 shows the crystallization peak temperature (T P ) with different heating rates of these samples. The non-isothermal crystallization kinetics of glass batches can be described by the modifi ed Kissinger equation [14] expressed as (1): (1) where, E c is the activation energy, T p is the crystallization peak temperature of the DSC trace, α is the heating rate, R is the gas constant, C is the constant number. Fig.2 shows the variation of ln(T p 2 / α) vs 1 000/(R×T p ) of the specimens CT0, CT4, CT8 and CT12.…”

“…The industrial wastes such as fl y ash, incinerator slag, steel slag, red mud, basalt and cement kiln dust are used as the starting materials to fabricate glass ceramics [1][2][3][4][5][6] . The compositions of the above-mentioned glass ceramics can mainly be located in the CaO-MgO-Al 2 O 3 -SiO 2 system.…”