Compositions: coating or plastic – Coating or plastic compositions – Metal-depositing composition or substrate-sensitizing...
Patent
1977-06-14
1979-08-14
Poer, James
Compositions: coating or plastic
Coating or plastic compositions
Metal-depositing composition or substrate-sensitizing...
106100, 106104, C04B 702
Patent
active
041644255
ABSTRACT:
Cement is disclosed having the following composition, in percent by weight: 20 to 75% of highly basic calcium chlorosilicate, 10 to 55% of calcium chloro-orthosilicate, 0.5 to 30% of calcium chloroaluminate, 2 to 20% of calcium chloroalumoferrite; cement of the foregoing compositions is produced by calcining at a temperature within the range of from 1,000.degree. to 1,200.degree. C. a raw mixture containing a calcareous component, silicaceous component, aluminous component, ferrous component, magnesium-containing component and calcium chloride in particular proportions, and then grinding the resultant cement clinker. This cement features a reduced heat emission in the initial stage of the hydration process and possesses a high activity. No corrosion of steel reinforcement is observed in concretes produced from the present cement. The cement can be used in heavy-duty concrete structures such as hydropower dams, in the production of high-strength concretes and ferroconcrete structures. The present process involves calcination at lowered temperatures and makes it possible to obtain a cement clinker possessing a high porosity and increased grinding ability thus reducing power consumption for its grinding by 2-2.5 times.
REFERENCES:
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patent: 3864138 (1975-02-01), Uchikawa et al.
patent: 3942994 (1976-03-01), Murray et al.
patent: 3947283 (1976-03-01), Uchikawa et al.
patent: 4028126 (1977-06-01), Mori et al.
Bikbau Marsel Y.
Bun Isaak M.
Kevvai Arnold A.
Nudelman Boris I.
Sventsitsky Alexandr S.
Adams Bruce L.
Burns Robert E.
Lobato Emmanuel J.
Poer James
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