Portland cement From Wikipedia, the free encyclopedia. Portland cement is the most common type of cement in general use around the world, used as a basic ingredient of concrete, mortar, stucco, and most non-speciality grout.

Portland cement was a fast-setting cement invented in 1824 by the Yorkshireman Joseph Aspdin (1778-1859). Aspdin created the cement through experimentation when he discovered that a heated …

Mortar holding weathered bricks. Mortar is a material used in masonry to fill the gaps between blocks in construction. It is a mixture of sand, a binder such as cement or lime, and water. The mixture is applied as a paste that then sets hard. The blocks may consist of stone, brick, concrete, or some other material.

The dominant hydraulic cement used worldwide is Portland cement (Hewlett 1998 ), which consists primarily of hydraulic calcium silicates in addition to calcium …

Part of the book series: Encyclopedia of Earth Science ( (EESS)) Download reference work entry PDF. Portland cement is a nearly universal building material possessing relatively …

Geopolymer concrete is a type of concrete that is made by reacting aluminate and silicate bearing materials with a caustic activator, such as fly ash or slag from iron and metal production. It can be a suitable substitute for ordinary Portland cement (OPC). Geopolymer ConcretePortland cement. 1.

Portland cement, binding material in the form of a finely ground powder, usually gray, that is manufactured by burning and grinding a mixture of limestone and …

Portland limestone is a limestone which was deposited in the latest stage of the Upper Jurassic period. It was first found on the Isle of Portland, Dorset. [1] However, it occurs over a much wider area, including France . The strata are beds of white-grey limestone separated by beds of chert .

Portland-Limestone Cement; PCR & EPDs; Lifecycle Emissions ; Sustainable Design; Sustainability & Codes; Green Rating Systems; Carbon Uptake; Economics. Dashboard. Dashboard Tutorial; Dashboard Access …

gypsum (jĭpˈsəm), mineral composed of calcium sulfate (calcium, sulfur, and oxygen) with two molecules of water, CaSO 4 ·2H 2 O. It is the most common sulfate mineral, occurring in many places in a variety of forms. A transparent crystalline variety is selenite. A massive gypsum of delicate color and texture, readily worked into ornamental vases, boxes, and …

Published Online February 6, 2006. Last Edited December 16, 2013. The Cement industry comprises establishments engaged in producing hydraulic cements, ie, cements which set and harden to a stonelike mass by reacting with water. The principal hydraulic cement is portland cement, a finely ground, usually grey, manufactured mineral product.

Portland cement. Cement is made by heating limestone with small quantities of other materials (such as clay) to 1450 °C in a kiln. The resulting hard substance, called "clinker," is then ground with a small amount of gypsum into a powder to make "Ordinary Portland Cement," the most commonly used type of cement (often referred to as OPC).

Portland cement is the most common type of cement in general use around the world, used as a basic ingredient of concrete, mortar, stucco, and most nonspeciality grout. It was developed from other types of hydraulic lime in England in the mid 19th century and usually originates from limestone. It i

Medusa Corporation. 3008 Monticello Boulevard Cleveland Heights, Ohio 44118 U.S.A. (216) 371-4000 Fax: (216) 371-2912. Public Company Incorporated: 1892 as Sandusky Portland Cement Company Employees: 1,100 Sales: $376 million (1997) Stock Exchanges: New York Ticker Symbol: MSA. SICs: 3421 Cement, Hydraulic; 1423 Crushed & Broken …

Giant Cement Holding, Inc. 320-D Midland ParkwaySummerville, South Carolina 29485U.S.A. (803) 851-9898Fax: (803) 496-5071 Source for information on Giant Cement Holding, Inc.: International Directory of Company Histories dictionary.

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Portland cement of commerce. Portland cement is distinguished from other kinds of

The Lehigh Cement Company has been a presence in Leeds, Jefferson County, since the 1980s, when it purchased the Standard Portland Cement Company. Welcome to your free, online resource on Alabama history, culture, geography, and natural environment. This site offers articles on Alabama's people, events, sports, art, literature, industry ...

Portland Cement. a hydraulic binder composed chiefly of calcium silicates. The most widely used cement in modern construction, Portland cement is obtained by pulverizing clinker with gypsum (3–7 percent); active mineral additives (10–15 percent) may be added to the mixture. Clinker is produced upon calcination (to the point of complete ...

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Cement is a material that hardens and sticks to other materials to hold them together. Portland cement is a common kind, and made from quicklime (heated limestone) and clay. Cement is used to make concrete and mortar. Cement is widely used for plastering and rendering. Plastering is done for the inner walls, and cement rendering is done for the ...

A composite stonelike material formed by mixing an aggregate (such as stones of irregular shape or crushed rock) with cement (which acts as the binding material) and water, then allowing the mixture to dry and harden; portland cement, now used in making concrete, was not developed until the 19th century. Also see average concrete, cyclopean ...

Portland cement is the most common type of cement in general usage in many parts of the world, as it is a basic ingredient of concrete, mortar, stucco and most non-specialty grout.It is a fine powder produced by grinding Portland cement clinker (more than 90%), a limited amount of calcium sulfate which controls the set time, and up to 5% minor …

Portland cement synonyms, Portland cement pronunciation, Portland cement translation, English dictionary definition of Portland cement. or portland cement n. A hydraulic cement made by heating a limestone and clay mixture in a kiln and pulverizing the resulting material.

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased. Portland Blast-Furnace Slag Cement a cement produced by grinding portland cement clinker together with pellets of blast-furnace slag (30–60 percent of the total weight) and a small amount of gypsum. It differs from ordinary portland …

Most construction cements today are hydraulic, and most of these are based upon Portland cement, which is made primarily from limestone, certain clay minerals, and gypsum, in a …

Portland cement is the most common type of cement in general usage in many parts of the world, as it is a basic ingredient of concrete, mortar, stucco and most non-specialty grout.It is a fine powder produced by grinding Portland cement clinker (more than 90%), a limited amount of calcium sulfate which controls the set time, and up to 5% minor …

Incorporated: 1900 as Associated Portland Cement Manufacturers (1900) Ltd. Employees: 18,637 Sales: $3.5 billion (2001 est.) ... Encyclopedia gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological ...

concrete, in construction, structural material consisting of a hard, chemically inert particulate substance, known as aggregate (usually sand and gravel), that is bonded together by cement and water. Among the ancient Assyrians and Babylonians, the bonding substance most often used was clay. The Egyptians developed a substance more …

Onoda Cement Co., Ltd. 6276, Onoda Onoda City, Yamaguchi 756 Japan (08368) 3-3331 Fax: (08368) 3-2011. Public Company Incorporated: 1881 Employees: 1,357 Sales: ¥ 420.68 billion (US$2.93 billion) Stock Exchanges: Tokyo Osaka Nagoya. Onoda Cement Company is the oldest and one of the largest cement companies in Japan, the country with the …