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Related to Portland cement: White Portland cement
Portland cementor portland cement
A hydraulic cement made by heating a limestone and clay mixture in a kiln and pulverizing the resulting material.
[After Portland, an urban district of southern England.]
(Building) a cement that hardens under water and is made by heating a slurry of clay and crushed chalk or limestone to clinker in a kiln
[C19: named after the Isle of Portland, because its colour resembles that of the stone quarried there]
a type of hydraulic cement usu. made by burning a mixture of limestone and clay in a kiln.
[1815–25; after the Isle of Portland, Dorsetshire, England]
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|Noun||1.||Portland cement - a cement that hardens under water; made by heating limestone and clay in a kiln and pulverizing the result|
cement - 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