Ceramic properties of kaolinized tuffaceous rocks in Kesan region, Thrace, NW Turkey

Yanık, Gürsel; Esenli, Fahri; Uz, Veli; Esenli, Vildan; Uz, Bektaş; Külah, Tacit

doi:10.1016/j.clay.2010.02.014

Cited by 13 publications

(7 citation statements)

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“…The results of the technological tests and the particle size and plasticity analysis coupled with literature data (Konta, 1995; Strazzera et al , 1997; Dondi, 1999, 2003; Carretero et al , 2002; Ferrari & Gualtieri, 2006; Yanık et al , 2010, 2012; Dondi et al , 2014, Bennour et al , 2015; Mahmoudi et al , 2017) suggest the use of the studied clays for the production of wall tiles, floor tiles and kiln wares, such as bricks, ceiling bricks, roofing bricks, roofing tiles and drain pipes that are shaped by dry pressing and extrusion.…”

Section: Resultsmentioning

confidence: 92%

“…The formation of mullite in the investigated clays contributed to the mechanical strength of the fired bodies. Complete wetting of the crystalline phases and the lack of cracks due to the volume expansion of the crystalline and the glassy phase had a positive effect on strength development (Yanık et al , 2010). In addition to mullite, minor spinel (up to 2 wt.%) was detected in samples #A 1 , #A 3 and #B 2 fired at 1200°C (Table 4).…”

Section: Resultsmentioning

confidence: 99%

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The Gümüşköy (Kütahya, Turkey) kaolin deposit and its ceramic properties

2018

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The Gümüşköy kaolin clay deposit, located ~40 km northwest of Kütahya, Turkey, has promising reserves for ceramic production. In order to evaluate the potential use of this region, five representative clay samples were collected and characterized with X-ray diffraction, polarized light optical microscopy, X-ray fluorescence spectrometry, differential thermal analysis and scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy. According to the Chemical Index of Alteration and Plagioclase Index of Alteration, the kaolin samples were formed by strong chemical alteration of the Tavşanlı volcanites. The clays contain kaolinite, illite, pyrophyllite, montmorillonite and minor halloysite, as well as quartz, plagioclase (andesine), biotite, sanidine, rutile and goethite. The clay samples were used for thermal and physical tests. The plasticity, particle-size distributions firing properties (water absorption, apparent porosity, linear shrinkage, dry bending strength, fired bending strength) and colour parameters of the fired samples were determined. The kaolinitic clay samples from Gümüşköy are suitable for making wall tiles, floor tiles and kiln wares after shaping by dry pressing and extrusion.

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Section: Resultsmentioning

confidence: 92%

Section: Resultsmentioning

confidence: 99%

The Gümüşköy (Kütahya, Turkey) kaolin deposit and its ceramic properties

2018

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“…(2) The Fe 2 O 3 (0.74À0.84%) and TiO 2 (0.02À0.10%) contents of Yaylayolu kaolin samples were very low, which raised the whiteness of the fired samples (L* value: between 83.24 to 85.72 fired at 1200 ºC) (Table 6). When compared with the L* value reported in the literature, Yaylayolu kaolin samples could be used in whitefired ceramics (Fiori et al, 1989;Abdel-Khalek, 1999;Das & Dana, 2003;Ferrari & Gualtieri, 2006;Kara et al, 2006;Zanelli et al, 2008;Yanık et al, 2010) and white cement production (Ertek & Ö ner, 2008).…”

Section: Firing Behaviourmentioning

confidence: 95%

Mineralogical, crystallographic and technological characteristics of Yaylayolu kaolin (Kütahya, Turkey)

Yanık¹

2011

Clay miner.

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The Yaylayolu kaolin deposit is situated in the vicinity of Tavşanlı, Kütahya, western Turkey. Mineral identification and characterization studies were conducted using powder X-ray diffraction (XRD), differential thermal analyses (DTA), scanning electron microscopy with an energy dispersive X-ray spectrometer (SEM-EDX), X-ray fluorescence (XRF) and Fourier transform infrared spectroscopy (FTIR) techniques. The degree of crystallinity, Hinckley's index (HI) and the Stoch index (SI) values were determined for kaolinite from the deposit.Five representative samples from the kaolin deposit were used for ceramic technological tests. Particle size distribution, pH value, loss on ignition, A12O3, Fe2O3and TiO2contents were determined, drying shrinkage, firing shrinkage, dry bend strength, fired bend strength, water absorption, pfefferkorn plasticity index, whiteness of the fired and unfired samples (L* value) and bulk density were measured. The kaolin was found to be suitable for making white cement and wall tiles, floor tiles, and tableware items which are shaped by dry pressing and extrusion.

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“…These Ca-bentonites have been studied previously in the southern part of Thrace Basin (Enez and Kesan districts). The Enez bentonite deposits formed authigenically by devitrificaton of volcanic glass of Oligocene andesitic pyroclastics (Yeniyol, 1987) and the Kesan bentonite occurrences formed in the Eocene-Oligocene dacitic-andesitic tuffaceous rocks (Yanık et al, 2010). Akbulut (1996) reported the Lalapasa bentonite occurrences in terms of the identification and their industrial applications.…”

Section: Introductionmentioning

confidence: 99%

Genesis of smectite in siliciclastics and pyroclastics of the Eocene İslambeyli Formation in the Lalapaşa region, NW Thrace, Turkey

et al. 2015

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The Eocene İslambeyli Formation in the Lalapaşa region (NW Thrace, Turkey) consists predominantly of siliciclastic clayey clastics at the bottom and of claystone, tuff and tuffaceous claystone/ sandstone/limestone in the middle and uppermost parts of this formation. Some tuff-tuffaceous beds of the middle–upper parts of the formation are economically viable bentonite depoits. The İslambeyli Formation exhibits vertical variations in the mineralogy, elemental compositions, and smectite-forming processes. Smectite was formed by weathering and diagenetic processes in the fluvial-shore environments in the lower part and by diagenetic alteration in a shallow-marine environment in the middle–upper parts of the formation. Ca-smectite flakes were formed by two processes: direct precipitation; and by means of a dissolution-precipitation mechanism from feldspar and mica. Dissolution-precipitation was most prevalent in the siliciclastic lower part of the formation. The amounts of Al, Fe, Mg and Ca required to form smectite and accessory illite were supplied mainly from the alteration of feldspars, mica and glass shards. The origin of smectite can also be explained by the inferred solution compositions given the parent phases in this formation, and the devitrification of glass shards in pyroclastic-rich middle–upper parts of the formation. In the upper beds, the observed decrease of K and Fe in the smectite structure coincided with both the increase in the amount of smectite and the increase in solution pH suggesting that precipitation of smectite developed over a prolonged period and under arid conditions.

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Ceramic properties of kaolinized tuffaceous rocks in Kesan region, Thrace, NW Turkey

Cited by 13 publications

References 13 publications

The Gümüşköy (Kütahya, Turkey) kaolin deposit and its ceramic properties

The Gümüşköy (Kütahya, Turkey) kaolin deposit and its ceramic properties

Mineralogical, crystallographic and technological characteristics of Yaylayolu kaolin (Kütahya, Turkey)

Genesis of smectite in siliciclastics and pyroclastics of the Eocene İslambeyli Formation in the Lalapaşa region, NW Thrace, Turkey

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