Trencadís (Catalan pronunciation: [tɾəŋkəˈðis]) is a type of mosaic used in Catalan modernism, created from broken tile shards. The technique is also called pique assiette. This mosaic is done using broken pieces of ceramic, like tiles and dinnerware .
Modernist architects made extensive use of ceramics, but Antoni Gaudí in particular proposed a more unconventional method. He covered his three-dimensional architecture with glazed ceramics of different shapes and colours, which created brightly coloured patterns. For the task, he used discarded pieces of ceramic tiles collected from the factory "Pujol i Bausis" located in Esplugues de Llobregat, and pieces of white ceramic from broken cups and plates discarded by other Spanish manufacturers.
The technique was used for the first time at the Güell Pavilions where the complex architecture forced him to break the tiles where he couldn’t use an entire square one.
A ceramic is an inorganic, nonmetallic solid prepared by the action of heat and subsequent cooling. Ceramic materials may have a crystalline or partly crystalline structure, or may be amorphous (e.g., a glass). Because most common ceramics are crystalline, the definition of ceramic is often restricted to inorganic crystalline materials, as opposed to the noncrystalline glasses, a distinction followed here.
The earliest ceramics made by humans were pottery objects, including 27,000 year old figurines, made from clay, either by itself or mixed with other materials, hardened in fire. Later ceramics were glazed and fired to create a colored, smooth surface. Ceramics now include domestic, industrial and building products and a wide range of ceramic art. In the 20th century, new ceramic materials were developed for use in advanced ceramic engineering; for example, in semiconductors.
The word "ceramic" comes from the Greek word κεραμικός (keramikos), "of pottery" or "for pottery", from κέραμος (keramos), "potter's clay, tile, pottery". The earliest mention of the root "ceram-" is the Mycenaean Greek ke-ra-me-we, "workers of ceramics", written in Linear B syllabic script. "Ceramic" may be used as an adjective describing a material, product or process; or as a singular noun, or, more commonly, as a plural noun, "ceramics".