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While working in Haarlem at the military hospital in 1851, Mathijsen first used plaster of Paris as a bandage. [1] Until then a Belgian method was used with starch that took up to a day to dry and harden. [1] Across the street he watched workers repairing cracks in the church with strips of jute dunked in plaster of Paris.
Gypsum plaster, [12] also known as plaster of Paris, [13] is a white powder consisting of calcium sulfate hemihydrate. The natural form of the compound is the mineral bassanite . [ 14 ] [ 15 ]
Scagliola is a composite substance made from plaster of Paris, glue and natural pigments, imitating marble and other hard stones. The material may be veined with colors and applied to a core, or desired pattern may be carved into a previously prepared scagliola matrix.
Plaster of Paris is a material that consists of calcium sulphate hemihydrate power and is produced by heating gypsum to 120 °C. The chemical formula is as follows: :CaSO 4 ·2H 2 O + Heat → CaSO 4 ·½H 2 O + 1½ H 2 O (released as steam).
The word gypsum is derived from the Greek word γύψος (gypsos), "plaster". [9] Because the quarries of the Montmartre district of Paris have long furnished burnt gypsum (calcined gypsum) used for various purposes, this dehydrated gypsum became known as plaster of Paris. Upon adding water, after a few dozen minutes, plaster of Paris becomes ...
Elkhart County Commissioners approved Monday the solicitation of quotes to replace the deck of Bridge 310, on C.R. 21 north of C.R. 142, just west of New Paris.
Plaster of Paris bandages were introduced in different forms by two army surgeons, one at a peacetime home station and another on active service at the front. Antonius Mathijsen (1805–1878) was born in Budel , the Netherlands, where his father was the village doctor.
A plasterer is a tradesman who works with plaster, such as forming a layer of plaster on an interior wall or plaster decorative moldings on ceilings or walls. The process of creating plasterwork, called plastering, has been used in building construction for centuries. A plasterer is someone who does a full 4 or 2 years apprenticeship to be ...