Mineralogical composition of the clay bodies used in the Italian tile industry

Fiori, Cesare; Fabbri, B.; Donati, G.; Venturi, I.

doi:10.1016/0169-1317(89)90023-9

Cited by 92 publications

(58 citation statements)

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“…Wall tiles also exhibit peculiar characteristics such as high dimensional stability and low moisture expansion. These products are manufactured using large amounts of clay, carbonate, quartz, and minor amount of talc [3][4][5]. The clays confer plasticity in the conformation step, high dry mechanical strength, and color [6].…”

Section: Introductionmentioning

confidence: 99%

Characterization of non-calcareous "thin" red clay from south-eastern Brazil: applicability in wall tile manufacture

Sousa

Holanda

2012

Cerâmica

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In this work the use of "thin" red clay from south-eastern Brazil (Campos dos Goytacazes, RJ) as raw material for the manufacture of wall tile was investigated. A wide range of characterization techniques was employed, including X-ray diffraction (XRD), X-ray fluorescence (XRF), scanning electron microscopy (SEM), grain-size analysis, and thermogravimetric analysis. The wall tile body was prepared by the dry process. The tile pieces were uniaxially pressed and fired between 1080 -1180 ºC using a fast-firing cycle. The following technological properties were determined: linear shrinkage, water absorption, apparent density, and flexural strength. The development of the microstructure was followed by SEM and XRD analyses. It was found that the "thin" red clay is kaolinitic type containing a substantial amount of quartz. The results also showed that the "thin" red clay could be used in the manufacture of wall tiles, as they present properties compatible with those specified for class BIII of ISO 13006 standard.

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Section: Introductionmentioning

confidence: 99%

Characterization of non-calcareous "thin" red clay from south-eastern Brazil: applicability in wall tile manufacture

Sousa

Holanda

2012

Cerâmica

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“…Las arcillas illítico-cloríticas e illítico-caoliníticas son las materias primas comúnmente usadas para la fabricación de gres (1,2). Las mezclas de estas arcillas con materiales complementarios, de naturaleza cuarzo-feldespática, son empleadas para mejorar su comportamiento durante el ciclo de producción cerámico, especialmente en el caso de los productos fabricados mediante monococción.…”

Section: Introductionunclassified

Composición y propiedades cerámicas de las pizarras de la Zona Centro Ibérica del Macizo Ibérico Meridional (Norte de Jaén, España)

Vázquez¹,

Jiménez-Millán²,

Sanchez-Jimenez³

et al. 2003

Bol. Soc. Esp. Ceram. Vidr.

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En este trabajo se ha evaluado la aplicabilidad para fabricar materiales cerámicos de las pizarras del Macizo Ibérico de la provincia de Jaén. Los principales componentes de estas pizarras son illita, caolinita, cuarzo y feldespatos, con menores contenidos de clorita, pirofilita, paragonita e interestratificado clorita/vermiculita. Estos materiales tienen altos contenidos de alúmina (17-21%), mientras el oxido de hierro varía en un amplio intervalo (1.33-9.21%). Los análisis granulométricos muestran que más del 90% de las partículas son <20 μm. La mayoría de estos materiales son sólo potencialmente apropiados para el moldeo por presión, debido a la baja plasticidad relacionada con el alto contenido en cuarzo y feldespatos. Los valores de contracción lineal y absorción de agua de estas pizarras, cocidas alrededor de 1000º C, sugieren que pueden ser apropiadas para fabricar algunos tipos de baldosas porosas, tales como mayólica o cottoforte. Además, este estudio ha revelado que estos materiales cocidos entre 1150º C y 1250º C pueden ser usados para elaborar gres rojo y gres blanco. Palabras clave: Macizo Ibérico, Pizarras paleozoicas, vitrificación, contracción lineal, absorción de agua. Composition and ceramic properties of shales from the Central-Iberican Zone of Southern Iberian Massif (Northern Jaen, Spain)The suitability of shale materials from the Iberian Massif in the Jaén province (Spain) to make ceramic materials has been evaluated. The main components of these shales are illite, kaolinite, quartz and feldspars, with lesser amounts of chlorite, pyrophyllite, paragonite and chlorite/vermiculite mixed-layers. The materials contain high amounts of alumina (17-21 %), and iron oxide vary over a wide range (1.33-9.21 %). Grain-size analysis shows that more than 90% is <20 μm. Most of these materials are only potentially suitable for shaping by pressing, due to the low plasticity related with the high quartz and feldspar content. The linear shrinkage and water absorption values of the materials fired at around 1000ºC suggest they might be suitable for making some types of porous tiles like majolica or cottoforte. In addition, this study has revealed that the Iberian shales from norther Jaén can be used to make red and white stoneware tiles by firing at temperatures between 1150 ºC and 1250 ºC.

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“…On the contrary, Red clay, low-carbonated and with higher alumina content, does not have sufficient plasticity for the shaping of resistant unfired pieces. Due to the proportions of clays used, traditional mixtures R and V (Table 1) have appropriate plasticity for shaping (Table 2) and present a medium-high carbonate content (≈20%, Table 2) and a quartz / phyllosilicates ratio especially practical for the manufacturing of bricks and roof-tiles, as has been reviewed in (1,2) on the basis of Fiori et al charts (26).…”

Section: Caracterización De Las Materias Primas Y Formulación De Nuevmentioning

confidence: 99%

“…In particular, a representation of chemical composition of clays and their mixtures (Table 3) in one of the triangular charts by Fiori et al (Figure 1) allows evaluating the suitability of these mixtures for the manufacturing a different kind of products, mainly ceramics for coverings (26). The chart (Figure 1) confirms that clays from Bailén and their mixtures (R and V) do not have application on their own or that they are mainly suitable for the manufacturing of porous bodies, being Red clay the only one that show feasibility for the production of red stoneware.…”

Section: Caracterización De Las Materias Primas Y Formulación De Nuevmentioning

confidence: 99%

Utilización de nuevas materias primas y residuos industriales para mejorar las posibilidades de uso de los materiales cerámicos del área de Bailén (Jaén)

2012

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Raw materials used by the ceramic industry in Jaén (southern Spain) consist of mixtures of carbonated clays from the Guadalquivir Basin and red clays from the Iberian Massif. The mixtures formulation usually obeys empirical experience developed by this industry for many generations. This work, evaluates different possibilities of using these raw materials to manufacture new ceramic products on the basis of clay physical-chemical properties and analyzes limitations to produce high added value products. As an alternative to overcome these limitations, the mixture of these clays with raw materials from near regions (pyrophyllite clay) and with different industrial wastes is proposed. These wastes are screen glass from monitors and oil impregnated diatomaceous earth. The study of the technological properties shows that the new mixtures are suitable for the processing of ceramic products in which structural and thermal insulating properties are improved or kept.

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Mineralogical composition of the clay bodies used in the Italian tile industry

Cited by 92 publications

References 1 publication

Characterization of non-calcareous "thin" red clay from south-eastern Brazil: applicability in wall tile manufacture

Characterization of non-calcareous "thin" red clay from south-eastern Brazil: applicability in wall tile manufacture

Composición y propiedades cerámicas de las pizarras de la Zona Centro Ibérica del Macizo Ibérico Meridional (Norte de Jaén, España)

Utilización de nuevas materias primas y residuos industriales para mejorar las posibilidades de uso de los materiales cerámicos del área de Bailén (Jaén)

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