Usually refers to portland cement which when mixed with sand, gravel, and water forms concrete Generally, cement is an adhesive; specifically, it is that type of adhesive which sets by virtue of a chemical reaction
concrete pavement is sometimes referred to as cement; "they stood on the gray cement beside the pool"
A special type of glue used to hold a crown in place It also acts as an insulator to protect the tooth's nerve
If things are cemented together, they are stuck or fastened together. Most artificial joints are cemented into place. Agent that binds concrete and mor(Tarih) Cements are finely ground powders that, when mixed with water, set to a hard mass. The cement of 2,000 years ago was a mixture of ash and lime. Volcanic ash mined near the city of Puteoli (now Pozzuoli), near Naples, was particularly rich in essential aluminosilicate minerals, giving rise to the pozzolana cement of the Roman era. See also portland cement
a substance that can be used to build together aggregates of sand or stone into a cohesive structure May be a single compound or a mixture May be hydraulic set, air set or chemical set
(1) A powder consisting of alumina, silica, lime, and other substances which hardens when mixed with water Extensively used in the oil industry to bond casing to the walls of the wellbore (2) A secondary mineral growth of chemically precipitated material on the surfaces and in the interstices of clastic sediments Authigenic clay minerals are not considered cement (3) To fix the casing firmly in the hole with cement, which is pumped through the drill pipe to the bottom of the casing and up into the annular space between the casing and the walls of the borehole After the cement sets (hardens) it is drilled out of the casing The casing can be perforated to allow reservoir fluids to enter the well
any of various materials used by dentists to fill cavities in teeth make fast as if with cement; "We cemented our friendship"
something that hardens to act as adhesive material a building material that is a powder made of a mixture of calcined limestone and clay; used with water and sand or gravel to make concrete and mortar concrete pavement is sometimes referred to as cement; "they stood on the gray cement beside the pool"
Fused to the bottom surface of the insole to reinforce the shoe and support the arch of the wearer After lasting, the surfaces of both the upper and the outsole are carefully roughed to remove the outer layer of material After roughing, cement is applied to both surfaces Immediately before the upper and outsole are put together in the outsole attaching machine, the dry cement on the outsole must be "activated" that is, brought into the proper condition for bonding The cemented outsole and upper are placed into an activating device where the cement film is properly conditioned by heat to the required state for secure bonding to the cemented upper The outsole and upper are taken from the activator, quickly assembled by hand to the lasted upper, and promptly placed into the sole attaching machine This machine immediately exerts adequate pressure on the shoe, bonding the outsole to the upper
A dispersion of "solution" of unvulcanized rubber or a plastic in a volatile solution This meaning is peculiar to plastics and rubber industries and may not be an adhesive composition
Fluid cement is mixed at the surface, pumped to the bottom of a cased well, forced to flow around the lower end of the casing and up into the space between the casing and the borehole When the cement solidifies (sets), it holds the casing in place, and provides support
A putty or other compound that is used to weatherproof stained glass projects that are to be used for doors or windows The cement is forced between the came and the glass It also adds strength and keeps the glass from rattling
A building material which, when mixed with water and other materials, hardens and becomes a binding agent May refer to mortar, Portland cement, plaster of Paris (gypsum) and others
Cement Kilns are used for the pyroprocessing stage of manufacture of Portland and other types of hydraulic cement. Over a billion tonnes of cement are made per annum, and the cement kiln is the heart of this production process
A cement mill (or finish mill in North American usage) is the equipment used to grind the hard, nodular clinker from the cement kiln into the fine grey powder that is cement. Most cement is currently ground in ball mills
A cement mixer is a machine with a large revolving container into which builders put cement, sand, and water in order to make concrete. A machine, often mounted on a truck, having a revolving drum in which cement, sand, gravel, and water are combined into concrete. a machine with a round drum that turns around, into which you put cement, sand, and water to make concrete
A hydraulic cement made by heating a limestone and clay mixture in a kiln and pulverizing the resulting material. Binding agent of present-day concrete. It is a finely ground powder made by burning and grinding a limestone mixed with clay or shale. Its inventor, Joseph Aspdin (1799-1855), patented the process in 1824, naming the material for its resemblance to the limestone of the Isle of Portland, England. The cement combines chemically with the water it is mixed with, then hardens and strengthens
Having a hard, brittle consistency because the particles are held together by cementing substances such as humus, CaCO3, or the oxides of silicon, iron, and aluminum The hardness and brittleness persist even when wet See also consistence
The grains of a sedimentary rock may be cemented by mineral being deposited between them by percolating water over time It is the strength of the cement rather than the grains that governs the hardness of many sedimentary rocks Calcium carbonate (lime) and silica are two common 'cements'
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