Ads
related to: what is clay used for
Search results
Results From The WOW.Com Content Network
Clay is used in many modern industrial processes, such as paper making, cement production, and chemical filtering. Between one-half and two-thirds of the world's population live or work in buildings made with clay, often baked into brick, as an essential part of its load-bearing structure.
Clay minerals are common weathering products (including weathering of feldspar) and low-temperature hydrothermal alteration products. Clay minerals are very common in soils, in fine-grained sedimentary rocks such as shale, mudstone, and siltstone and in fine-grained metamorphic slate and phyllite.
In geology, the term bentonite is applied to a type of claystone (a clay rock, not a clay mineral) composed mostly of montmorillonite (a clay mineral from the smectite group). It forms by devitrification of volcanic ash or tuff, [5] typically in a marine environment.
A wide variety of clays are used for medicinal purposes—primarily for external applications, such as the clay baths in health spas ( mud therapy ). Among the clays most commonly used are kaolin and the smectite clays such as bentonite, montmorillonite, and Fuller's earth.
A brick is a type of construction material used to build walls, pavements and other elements in masonry construction. Properly, the term brick denotes a unit primarily composed of clay, but is now also used informally to denote units
Terracotta. Terracotta, also known as terra cotta or terra-cotta [2] ( Italian: [ˌtɛrraˈkɔtta]; lit. 'baked earth'; [3] from Latin terra cocta 'cooked earth'), [4] is a term used in some contexts for earthenware. It is a clay -based non-vitreous ceramic, [5] fired at relatively low temperatures.
Kaolinite is a soft, earthy, usually white, mineral (dioctahedral phyllosilicate clay ), produced by the chemical weathering of aluminium silicate minerals like feldspar. It has a low shrink–swell capacity and a low cation-exchange capacity (1–15 meq/100 g).
A ceramic is any of the various hard, brittle, heat-resistant, and corrosion-resistant materials made by shaping and then firing an inorganic, nonmetallic material, such as clay, at a high temperature. [1] [2] Common examples are earthenware, porcelain, and brick .
Ball clays are kaolinitic sedimentary clays that commonly consist of 20–80% kaolinite, 10–25% mica and 6–65% quartz, along with small amounts of organic matter (such as lignite) and trace amounts of other minerals such as pyrite and siderite . They are a common raw material for various types of ceramics, where their primary roles are to ...
Stoneware. Stoneware is a broad term for pottery fired at a relatively high temperature. [2] A modern definition is a vitreous or semi-vitreous ceramic made primarily from stoneware clay or non- refractory fire clay. [3] [4] End applications include tableware, decorative ware such as vases.