A special synthetic blend of limestone and clay used to make concrete which is generally believed to be stronger, more durable, and more consistent than concrete made from natural cement. Portland cement is made by mixing calcareous material, like limestone, with silica, alumina, and iron oxide-containing materials. These materials are burned together and the resulting product, or admixture, is ground up to form Portland cement. See cement and concrete.
Hydraulic cement consisting of finely pulverized compounds of silica, lime, and alumina.
A gray powder made from limestone that is mixed with sand and water to make mortar, or mixed with sand, small stones or gravel, and water to make Portland cement concrete. In this text Portland cement concrete is referred to as concrete.
Powdery substance produced by burning a mixture of clay and limestone at a high temperature. A primary ingredient in 'tufa.
A fine powdered material that is gray in color. When mixed with water, it sets and binds together to form a hard, solid material. Cement is used to make concrete and mortar. Synonym: cement.
a mixture of burned lime, iron, silica, and alumina. This mixture is put through a kiln and then ground into a fine powder and packaged for sale. The cement is the same color as the gray limestone quarried near Portland, England.
a cement that hardens under water; made by heating limestone and clay in a kiln and pulverizing the result
cement manufactured from limestone and clay, hardens underwater; most commonly used structural cement
Name originated from the resemblance of the color and quality of the hardened cement to Portland stone, limestone quarried in Dorset (In England). The term is now a generic name for cement worldwide and describes cement made from mixing calcareous or argillaceous, or other materials with silica, alumina, and iron oxide, burning them at a melting temperature of 14500C to produce clinker
A hydraulic cement product obtained by pulverizing and calcining a properly proportioned mixture of three minerals - lime, silica, and alumina.
Fine, grayish powder formed by burning limestone, clay or shale and then griding the resulting clinkers. The result is a cement which hardens under water and which is used as a base for all mortar. Portland cement is a grade of cement, not a brand.
A number of types of cement with unique characteristics manufactured from limestone and mixed with shale, clay, or marl.
Cement made by heating clay and crushed limestone into a brick and then grinding to a pulverized powder state.
a high grade mixture of minerals obtained by grinding together a mixture of clay materials and lime and heating until the entire mass forms a high clinker, which is then ground into a fine powder, which when added to water reacts to form a hard substance. Portland cement is the binding agent in concrete
A hydraulic cement, extremely hard, formed by burning silica, lime, and alumina together and then grinding up the mixture.
A finely pulverized material used in the making of concrete. When mixed with water, it causes hydration to occur. Named for its color - like the Isle of Port off the English coast.
A powder - formed by the calcination of limestone, clay and shale - that hardens and becomes cementitious when it reacts with water and which, when mixed with aggregate, can be used as the structural material known as portland cement concrete. Additional specifications for portland cement are in ASTM C150. White portland cement is made with selected raw materials to control its color.
(ASTM C 150) the product obtained by pulverizing clinker consisting essentially of hydraulic calcium silicates.
A hydraulic cement composed of calcium carbonate, calcium silicates and aluminates, named for its resemblance to Portland stone. First patented in 1824.
Pure cement -- kiln-dried limestone, without any of the aggregates that make up concrete. Used in various ways in Pizza Oven installation, including Insulating Concrete and Fire Clay Mortar.
Common cement. A fine powdered materials which, when mixed with water, sets and binds together to form a hard, solid material. It is used as a component of mortar and concrete.
the cement most widely used in oilwells. It is made from raw materials such as limestone, clay or shale, and iron ore.
A cement consisting predominantly of calcium silicates which reacts with water to form a hard mass.
A type of cement (not a brand name). This combination of elements is largely lime and silica and is basic to making concrete and mortar.
A hydraulic product that sets and hardens when it chemically interacts with water. Made by burning a mixture of limestone and clay or similar materials. (Also see white cement.)
A type of cement made by burning limestone and clay. It is a basic ingredient in concrete.
A mixture of certain minerals which when mixed with water form a gray colored paste and cure into a very hard mass.
Mixture of cement rock, clay, limestone, shells, shale, sand, iron ore, which is ground and calcined and undergoes a chemical reaction, when mixed with water, that turns it into a strong, hard, uniform structural material, which is used as a base material for concrete and mortar.
Portland cement is the most common type of cement in general usage, as it is a basic ingredient of concrete, mortar, stucco and most non-specialty grout. It is a finely-ground powder produced by grinding Portland cement clinker (more than 90%), a maximum of about 5% gypsum which controls the set time, and up to 5% minor constituents (as allowed by various standards). As defined by the European Standard EN197.1, "Portland cement clinker is a hydraulic material which shall consist of at least two-thirds by mass of calcium silicates (3CaO.SiO2 and 2CaO.SiO2), the remainder consisting of aluminium- and iron-containing clinker phases and other compounds.