Cement setting accelerator

Details Cement setting accelerator Cement setting accelerator

2004-10-14

2010-02-16

Green, Anthony J (Department: 1793)

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

C106S461000, C106S695000, C106S819000

Reexamination Certificate

active

07662229

ABSTRACT:
A cement setting accelerator comprising calcium hydroxide particles having an average particle diameter of 3 μm or less, and a cement composition comprising 100 parts by weight of a cement and 0.05 to 10 parts by weight of the above setting accelerator. A wet ground product of calcium hydroxide or a fine precipitate formed by a reaction between a calcium salt and an alkali hydroxide can be used as the above calcium hydroxide particles.This setting accelerator shows a high setting accelerating effect and does not exert a bad influence upon the quality, especially durability of a hardened product of the cement composition.

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Dec. 17, 2008 Office Action from the corresponding Russian application and English Translation.
Dec. 25, 2007 Office Action from the corresponding Russian application and English language Translation.

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