Coal fly ash utilization: Low temperature sintering of wall tiles

Chandra, Navin; Sharma, Priya; Пашков, Г. Л.; Voskresenskaya, E. N.; Amritphale, S. S.; Baghel, Narendra S.

doi:10.1016/j.wasman.2007.09.001

Cited by 30 publications

(13 citation statements)

References 14 publications

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“…Influence of fly ash granulometry and pentasodium triphosphate addition on dry pressed ceramic tiles based on fly ash-clay body was investigated by Sokolar and Smetanova [13]. A study of the sintering of fly ash and its mixture with low alkali pyrophyllite in the presence of sodium hexa meta phosphate, a complex activator of sintering, for the purpose of wall tile manufacturing was conducted [14]. The environmental and economic feasibility of ceramic tiles was also studied by Bovea et al [15].…”

Section: Introductionmentioning

confidence: 99%

Utilisation of different types of coal fly ash in the production of ceramic tiles

Koçkal¹

2012

Bol. Soc. Esp. Ceram. Vidr.

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The influence of varying proportions of different types of fly ash (used in place of feldspar) and different sintering temperatures on the sintered properties of ceramic tile bodies was evaluated. The results indicated that sintering ceramic tiles with a high fly ash content at a high temperature caused a decrease in the properties because of bloating. The ceramic samples containing a higher amount of fly ash that were sintered at low temperature exhibited lower water absorption, larger shrinkage and strength because of the densification observed also in microstructural investigation.Keywords: Sintering; Microstructure; Mechanical properties; Tiles. Utilización de diferentes tipos de cenizas volantes de carbón en la producción de baldosas cerámicasSe ha evaluado la influencia de la proporción de diferentes tipos de cenizas volantes (en lugar de feldespato) y diferentes temperaturas de sinterización en las propiedades de soportes cerámicos. Los resultados indicaron que las composiciones con un alto contenido de cenizas volantes provocaron una disminución en las propiedades de las piczas cocidas a alta temperatura como consecuencia del hinchamiento. Las composiciones con una mayor cantidad de cenizas sinterizadas a baja temperatura mostraron una menor absorción de agua, mayor contracción y resistencia mecánica debido a la densificación como también se observó en la investigación microestructural.

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Section: Introductionmentioning

confidence: 99%

Utilisation of different types of coal fly ash in the production of ceramic tiles

Koçkal¹

2012

Bol. Soc. Esp. Ceram. Vidr.

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“…Other works examine the possibility to use industrial streams as blast furnace slag, [10][11][12][13][14] MSW ashes, 15,16 other fly ashes [17][18][19][20] and different sludge. 5,21,22 In most cases, these residues are used as inert or plastic materials and the sintering process is related mainly to presence of traditional ceramic fluxes in batches.…”

Section: Introductionmentioning

confidence: 99%

Ceramics from blast furnace slag, kaolin and quartz

Karamanova

Avdeev

Karamanov

2011

Journal of the European Ceramic Society

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“…[1][2][3][4][5]. In such situation, the reaction rate can be described only by complex equations, where the activation energy is no more constant, but is dependent on the conversion degree a, i.e., E = const., but E = E(a)).…”

Section: Determination Of Kinetic Parametersmentioning

confidence: 99%

“…A potential utilization of power plant ashes as an additive to the ceramic materials is documented in number of scientific papers, for example in [1][2][3][4][5]. In most of them, the attention is focused mainly to the mechanical properties of final products formed at thermal treatment of blends containing clay minerals and fly ashes of different origins.…”

Section: Introductionmentioning

confidence: 99%

Heating rate effect on the thermal behavior of some clays and their blends with oil shale ash additives

Kaljuvee

Štubňa

Húlan

et al. 2016

J Therm Anal Calorim

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The heating rate effect on the thermal behavior of clays from Arumetsa and Kunda deposits (Estonia) and an illitic clay from Füzérradvány (Hungary) was studied. Experiments were carried out under dynamic heating condition up to 1050°C at the heating rates of 1.25, 2.5, 5 and 10°C min -1 in a stream of gas mixture containing 79 % of Ar and 21 % of O 2 with Setaram Labsys 1600 analyzer. Two different ashes were used as additives: the electrostatic precipitator ash from the first field and the cyclone ash formed, respectively, at circulating fluidized bed combustion (temperatures 750-830°C) and pulverized firing (temperatures 1200-1400°C) of Estonian oil shale at Estonian Power Plant. For calculation of kinetic parameters, the TG data were processed by the differential isoconversional Friedman method. The results of thermal analysis and the variation of the value of activation energy E along the reaction progress a indicated the complex character of decomposition of clays and their blends with Estonian oil shale ashes, and the certain differences in thermal behavior of different clays depending on their origin.

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Coal fly ash utilization: Low temperature sintering of wall tiles

Cited by 30 publications

References 14 publications

Utilisation of different types of coal fly ash in the production of ceramic tiles

Utilisation of different types of coal fly ash in the production of ceramic tiles

Ceramics from blast furnace slag, kaolin and quartz

Heating rate effect on the thermal behavior of some clays and their blends with oil shale ash additives

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