Abstract
Porcelainized stoneware is an extremely hard and homogeneous unglazed ceramic material obtained by fastfiring of kaolinitic ceramic bodies containing a large amount of fluxes. The obtained tiles, available in a large variety of colours, shape size and surface finish, are characterized by very low porosity (<0,3wt% expressed as water absorption) and are ideal for heavy-traffic areas subject to mechanical and chemical stresses. Porcelainized stoneware tiles offer alternative valid (and in many cases necessary) solutions to the traditional glazed tiles either for interiors or for exteriors both in modern or classic constructions for flooring and covering.
Highlights
Porcelainized stoneware is an extremely hard and homogeneous unglazed ceramic material obtained by fastfiring of kaolinitic ceramic bodies containing a large amount of fluxes
Aim of the present paper is to show the physicochemical properties of porcelainized stoneware tiles, in order to give informations for its optimal architectural applications in new constructions or re-building
The so called 'firing" of high-sintered tiles is principally due to the reactivity of the metakaolinite and to the melting action developed by the feldspars at the appropriate temperatures which control the body component reactions producing the liquid phase
Summary
Porcelainized stoneware is an extremely hard and homogeneous unglazed ceramic material obtained by fastfiring of kaolinitic ceramic bodies containing a large amount of fluxes. En muchas formas, tales como el tradicional gres ríistico o "cottoforte", eran los primeros materiales usados desde fechas tan antiguas que no puede darse una fecha precisa de cuándo comenzó su utilización en la construcción. The development of the modern ceramic industry in Elurope (Italy in particular) in the last years corresponded to the introduction, as first, of the traditional double-firing techniques and, afterwards, of MATERIALES DE CONSTRUCCIÓN, Vol 46, n"^ 242-24.3, al?ril/jun.io -jul.io/septicml>re 1996. (c) Consejo Superior de Investigaciones Científicas Licencia Creative Commons 3.0 España (by-nc) de la industria cerámica moderna en Europa (en Italia en particular) en los últimos años se corresponde con la introducción, primero, de la doble cocción tradicional y, después, del proceso de monococción rápida en hornos de rodillo. El objeto de este trabajo es, pues, mostrar las propiedades físico- químicas de estos productos de la construcción, a fin de discutir sus aplicaciones arquitectónicas óptimas en nuevas construcciones o en reparaciones de antiguas edificaciones
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