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Ultisol, commonly known as red clay soil, is one of twelve soil orders in the United States Department of Agriculture soil taxonomy. The word "Ultisol" is derived from "ultimate", because Ultisols were seen as the ultimate product of continuous weathering of minerals in a humid, temperate climate without new soil formation via glaciation .
Stronger and less porous engineering bricks (UK Class A) are usually blue due to the higher firing temperature [3] whilst class B bricks are usually red. Class A bricks have a strength of 125 N/mm 2 (18,100 lb f /sq in) and water absorption of less than 4.5%; Class B bricks have a strength greater than 75 N/mm 2 (10,900 lb f /sq in) and water ...
The clay there produced bricks of the highest strength and hardness. These bricks were acid resistant, so could be used for the lining of flues and chimneys. There were four brickyards, producing engineering bricks (Enfields, Whinney Hills) and specials. Specials were hand thrown into plaster of Paris moulds. They could be extremely decorative.
A stock or stock board is an iron-faced block of wood fixed to the surface of the moulder's bench. The brick mould fits over the stock; the brick maker fills the mould with prepared clay and cuts it off with a wire level with the top of the mould, before turning out the 'green' brick onto a wooden board called a pallet for drying and firing. [1]
The compressive strength of bricks produced in the United States ranges from about 7 to 103 MPa (1,000 to 15,000 lbf/in 2), varying according to the use to which the brick are to be put. In England clay bricks can have strengths of up to 100 MPa, although a common house brick is likely to show a range of 20–40 MPa.
Acme Brick Company is an American manufacturer and distributor of brick and masonry-related construction products and materials.Founder George E. Bennett (October 6, 1852 – July 3, 1907), chartered the company as the Acme Pressed Brick Company on April 17 1891, in Alton, Illinois, [1] although the company's physical location has always been in Texas.
[4]: 65 He named it laterite from the Latin word later, which means a brick; this highly compacted and cemented soil can easily be cut into brick-shaped blocks for building. [4]: 65 The word laterite has been used for variably cemented, sesquioxide-rich soil horizons. [5] A sesquioxide is an oxide with three atoms of oxygen and two metal atoms ...
Reemtsma cigarette factory in Hamburg by Fritz Höger A piece of vitrified brick. Clinker bricks are partially-vitrified bricks used in the construction of buildings.. Clinker bricks are produced when wet clay bricks are exposed to excessive heat during the firing process, sintering the surface of the brick and forming a shiny, dark-colored coating.