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Organisationally, all domestic gypsum activities were consolidated in the British Gypsum subsidiary and the parent company was BPB Industries. BPB had also acquired the main paper supplier in 1953 – the Aberdeen firm of C. Davidson. [citation needed] The post-war period saw extensive overseas investment through subsidiaries and associates.
British Gypsum Mines Ltd. Gotham Works [7] after 1979 2 ft 2 in (660 mm) Gotham, Nottinghamshire, England Underground locomotive-worked railway. British Gypsum Mines Ltd. Mountfield Works [25] 1945 after 1966 2 ft (610 mm) Mountfield, England Inclined adit and works railway. British Steel Corporation Beaumont Fluor Mine [7] after 1979 2 ft (610 mm)
Mine Commodity Coordinates Associated town County Owner Dates Notes Refs Barrow Mine Gypsum (Barrow upon Soar: Leicestershire: British Gypsum: 1987–present
Various sized cuts of 1 ⁄ 2 in (13 mm) drywall with tools for maintenance and installation . Drywall (also called plasterboard, dry lining, [1] wallboard, sheet rock, gib board, gypsum board, buster board, turtles board, slap board, custard board, gypsum panel and gyprock) is a panel made of calcium sulfate dihydrate (), with or without additives, typically extruded between thick sheets of ...
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Because gypsum dissolves over time in water, gypsum is rarely found in the form of sand. However, the unique conditions of the White Sands National Park in the US state of New Mexico have created a 710 km 2 (270 sq mi) expanse of white gypsum sand, enough to supply the US construction industry with drywall for 1,000 years. [18]
A gypsum block is made of gypsum plaster and water. The manufacturing process [1] is automated at production plants where raw gypsum (CaSO 4 ·2H 2 O) is ground and dried, then heated to remove three-quarters of the bound water and thus transformed into calcium sulfate hemihydrate (CaSO 4 ·½H 2 O), also known as gypsum plaster, stucco, calcined gypsum or plaster of Paris.
Plaster veneer (American English) or plaster skim (British English) is a construction methodology for surfacing interior walls, by applying a thin layer of plaster over a substrate—typically over specially formulated gypsum board base, similar in nature to drywall.