The effect of fluidized fly ash on the properties of dry pressed ceramic tiles based on fly ash–clay body

Sokolar, Radomir; Vodova, Lucie

doi:10.1016/j.ceramint.2011.05.005

Cited by 50 publications

(24 citation statements)

References 16 publications

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“…Sokolar and Vodova [94] used fly ash with kaolinic clay to manufacture dry pressed ceramic tiles. It is possible to use maximum 20 wt.% of FBC ash in the fly ash-clay mixture.…”

Section: Ceramic Industrymentioning

confidence: 99%

A comprehensive review on the applications of coal fly ash

Yao

Sarker

et al. 2015

Earth-Science Reviews

1,387

568

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Coal fly ash, an industrial by-product, is derived from coal combustion in thermal power plants. It is one of the most complex anthropogenic materials, and its improper disposal has become an environmental concern and resulted in a waste of recoverable resources. There is a pressing and ongoing need to develop new recycling methods for coal fly ash. The present review first describes the generation, physicochemical properties and hazards of coal fly ash at the global level, and then focuses on its current and potential applications, including use in the soil amelioration, construction industry, ceramic industry, catalysis, depth separation, zeolite synthesis, etc.Finally, the advantages and disadvantages of these applications, the mode of fly ash utilization worldwide and directions for future research are considered.

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“…Sokolar and Vodova [94] used fly ash with kaolinic clay to manufacture dry pressed ceramic tiles. It is possible to use maximum 20 wt.% of FBC ash in the fly ash-clay mixture.…”

Section: Ceramic Industrymentioning

confidence: 99%

A comprehensive review on the applications of coal fly ash

Yao

Sarker

et al. 2015

Earth-Science Reviews

1,387

568

View full text Add to dashboard Cite

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“…1c), respectively, for Kunda and illitic clay, are characteristic to mullite crystallization [3,16].…”

Section: Resultsmentioning

confidence: 99%

“…[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%

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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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“…Both samples contained 60 mass% of clay B1 (supplied by LB-Minerals Ltd.), the remaining part was a filler (clay B1 fired at 1000 °C with a soaking time 90 min at the highest temperature). Clay B1 consisted of kaolinite (65 mass%), illite (25 mass%), muscovite (3 mass%), 5 mass% of free quartz, and 2 mass% of undefined filler [15]. The chemical compositions of clay B1 and fly ash are given in tab.…”

Section: Samplesmentioning

confidence: 99%

Influence of fly ash added to a ceramic body on its thermophysical properties

Kováč¹,

Trník²,

Medveď³

et al. 2016

THERM SCI

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We study thermal expansion, mass changes, heat capacity, and thermal diffusivity and conductivity for a ceramic body with 20 mass% and without fly ash content, using the thermodilatometric analysis, thermogravimetric analysis, differential thermal analysis, differential scanning calorimetry, and flash method. The measurements were performed: (a) for green samples either isothermally or by a linear heating up to a temperature 600 °C, 1050 °C, or 1100 °C, depending on the measurement method; (b) at the room temperature for samples preheated at 100 °C, 200 °C, ..., 1100 °C. In case (a) addition of fly ash changes the final contraction only above ~900 °C, while the thermal properties remain almost unchanged. In case (b) the final contraction of samples at 1100 °C is the same. The thermal diffusivity is nearly identical up to 700 °C, and fly ash causes the diffusivity to stay almost constant up to 1000 °C.

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The effect of fluidized fly ash on the properties of dry pressed ceramic tiles based on fly ash–clay body

Cited by 50 publications

References 16 publications

A comprehensive review on the applications of coal fly ash

A comprehensive review on the applications of coal fly ash

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

Influence of fly ash added to a ceramic body on its thermophysical properties

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