Gypsum is a very saft sulfate meeneral componed o calcium sulfate dihydrate, wi the chemical formula caso 4 2h 2 o. Technical specification 4 gypsum asr setting parameters vicat ring diameter initial setting time final setting time 1820 cm 46 minutes 1012 minutes physical and chemical. It is mainly used in ornaments and decorations for interiors uses. American gypsums submittal sheets are in the adobe pdf format. It can be uised as a fertilizer, is the main constituent in mony furms o plaister an is. The gypsum association fire resistance design manual is referenced by the following code and standards writing organizations. Set retarder and strength accelerator these columns of icj offer an opportunity to the engineering fraternity to express their views on the current practices in design, construction and. If gastrointestinal discomfort occurs and if person is conscious, give a large quantity of water.
Head of wall firestop systemjoint forming profile and elastomeric spray firestop. As acicular to stubby prismatic crystals, thin to thick tabular on 010, typically exhibiting. The full version of the gypsum construction handbook. Drywall plasterboard, wallboard, gypsum board is a panel made of gypsum plaster pressed between two thick sheets of paper. As acicular to stubby prismatic crystals, thin to thick tabular on 010, typically exhibiting 010, 011, 110, 111, 103, with more than 20 other forms noted, coarsely striated k 001, to 17 m. Jun 09, 2010 dfb gypsum industries is the leading manufacturer of gypsum board range of products. Other uses of gypsum in time of war may be mentioned briefly.
It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster, blackboardsidewalk chalk, and drywall. Describes complete line of construction products, including sheetrock brand gypsum panels and imperial brand gypsum base for drywall and veneer plaster construction, sheathing and ceilings. D for water and caso o gypsum university of cambridge. Enter contractor name, job name and date to populate into. The use of secondary gypsum to make a controlled low.
In a number of buildings recently constructed at our navy yards gypsum slabs have been used for the roof decks. In its crystalline structure there are two water molecules by one of calcium sulphate. To share your opinion with our readers, you may send in your inputs in about 1500 words via e. The gypsum is mined from a quarry located 20 miles 32 km to the north, in the fish creek mountains of imperial county. A number of jointing specifications are available to suit the board type, site preference and method of application manually using hand tools or mechanically using gyproc speed tape. Tyrer2 1coventry university, 2research fellow, imperial college, uk abstract.
Head of wall firestop system gypsum board, fire trak shadowline. If swallowedif ingested, intestinal obstruction m ay occur if the material hardens. Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula caso 4 2h 2 o. Additional specification options are provided in masterspec and manuspec. Dfb gypsum industries is the leading manufacturer of gypsum board range of products. A notforprofit trade association founded in 1930, promoting the use of gypsum while advancing the development, growth, and general welfare of the gypsum industry in the united states and canada on behalf of its member companies.
Read gypsum books like hb 1612005 guide to plastering and united states. Learn from gypsum experts like sai global apac and scribd government docs. Pdf involvement of gypsum caso4 2h2o in water treatment. Technical data sheet natural gypsum une 102031 82 raw materials and description. Mineralogical characterization by xrd of gypsum dunes at. Pdf dissolution and conversions of gypsum and anhydrite. The natural gypsum stone is a mineral formed by dihidrated calcium sulphate. If gastrointestinal discomfort occurs and if person is conscious, give a large quantity of water and. India gypsum regular gypsum wallboard is used as a covering material for walls, ceilings also in making partition walls in new building construction or renovation work. The use of secondary gypsum to make a controlled low strength material p.
Gypsum can also contain small clusters of selenite, satinspar, and alabaster, which can also be made into plaster powder, as well as anhydrite. There are other calcium sulfates, such as calcium sulfate. Adobe acrobat reader is required to view pdf files. Gypsum caso4 2h2o c 20012005 mineral data publishing, version 1 crystal data.
In a number of buildings recently constructed at our navy yards gypsum slabs have been used for the roof decks because of their light weight and noiicondensing quality. Facebook is showing information to help you better understand the purpose of a page. It is widely mined and is used as a fertilizer and as the main constituent in many forms of. Read gypsum books like hb 1612005 guide to plastering and united states v. Set retarder and strength accelerator these columns of icj offer an opportunity to the engineering fraternity to express their views on the current practices in design, construction and management being followed in the industry.
Gypsum and calcium sulfate anhydrite the most widely used ca soil additive is gypsum. A potential benefit in disposal and reuse article pdf available in separation science and technology 4112. Gold bond brand xp gypsum board national gypsum company. A notforprofit trade association founded in 1930, promoting the use of gypsum while advancing the development, growth, and general welfare of the gypsum industry in the united states and canada on. The transparent and the white grains are primarily quartz and gypsum, respectively. Project nameproject number1jul10 2 gold bond brand xp gypsum board national gypsum company 2. The documents found here are in adobe pdf format which requires acrobat reader.
Specifications are in csi threepart format and csi page format. The plaster city location makes sheetrock brand gypsum panels. We specialize in manufacturing and supplying gypsum based products to the building construction. Gypsum plaster fireproofing columns 10wf49 or heaviercad file name goldb.
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