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calcareous cement

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См. также в других словарях:

  • calcareous cement — hidraulinės kalkės statusas T sritis chemija apibrėžtis Kalkės, kietėjančios ore ir vandenyje, degamos iš 8–20% molio turinčios žaliavos. atitikmenys: angl. calcareous cement; hydraulic lime rus. гидравлическая известь …   Chemijos terminų aiškinamasis žodynas

  • Cement kiln — Cement kilns are used for the pyroprocessing stage of manufacture of Portland and other types of hydraulic cement, in which calcium carbonate reacts with silica bearing minerals to form a mixture of calcium silicates. Over a billion tonnes of… …   Wikipedia

  • cement — cementable, adj. cementer, n. cementless, adj. /si ment /, n. 1. any of various calcined mixtures of clay and limestone, usually mixed with water and sand, gravel, etc., to form concrete, that are used as a building material. 2. any of various… …   Universalium

  • cement gland — Special concentrations of cells in dermal cover of cirripeds which function for secreting calcareous substance of valves; possibly equivalent to dermal glands of other crustaceans [Moore and McCormick, 1969]. (Order Anostraca): Pair of glands… …   Crustacea glossary

  • cement gland — 1. Any of certain glands of invertebrates that secrete an adhesive substance. 2. (ACANTHOCEPHALA) A gland or glands near the male testes that secretes a binding medium that facilitates copulation with the female. 3. (ARTHROPODA: Crustacea)… …   Dictionary of invertebrate zoology

  • James Frost (cement maker) — James Frost (1780? 1840?) was a British cement manufacturer, and invented processes that led to the eventual development of Portland cement.James Frost was born in Finchley, North London, England [Francis A J, The Cement Industry 1796 1914 ,… …   Wikipedia

  • 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 Portland cement clinker (more than 90%), a… …   Wikipedia

  • roman cement — noun Usage: usually capitalized R : a natural cement prepared by calcining septaria and grinding it dry to a fine powder * * * Roman cement noun A hydraulic cement made from calcareous nodules from the London Clay • • • Main Entry: ↑Roman …   Useful english dictionary

  • cementation — /see meuhn tay sheuhn, men , sem euhn /, n. 1. the act, process, or result of cementing. 2. Metall. the heating of two substances in contact in order to effect some change in one of them, esp., the formation of steel by heating iron in powdered… …   Universalium

  • Textulariida — Taxobox name = Textulariida image caption = Textularia shell fossil range = Cambrian Recent domain = Eukaryota regnum = Rhizaria phylum = Foraminifera ordo = Textulariida subdivision ranks = Superfamilies subdivision = Ataxophragmiacea… …   Wikipedia

  • mineral deposit — Introduction       aggregate of a mineral in an unusually high concentration.       About half of the known chemical elements (chemical element) possess some metallic (metal) properties. The term metal, however, is reserved for those chemical… …   Universalium

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