Processing additives for hydraulic cements

Details Processing additives for hydraulic cements Processing additives for hydraulic cements

1998-05-26

2000-04-11

Green, Anthony

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

106709, 106714, 106715, 106732, 106808, 106823, C04B 2412, C04B 2804

Patent

active

060483938

ABSTRACT:
This invention relates to enhancing the compressive strength of cements after 1, 3, 7 and 28 days following hydration and to improving porosity and finished surfaces of the hardened cements and concretes made therefrom. The improved cements are prepared using certain hydroxylamine additives in amounts of up to 0.1% which preferably are added during grinding of the cement in which case the amines further act as grinding aids.

REFERENCES:
patent: 3329517 (1967-07-01), Dodson, Jr. et al.
patent: 4373956 (1983-02-01), Rosskopf
patent: 4943323 (1990-07-01), Gartner et al.
patent: 4990190 (1991-02-01), Myers et al.
patent: 5017234 (1991-05-01), Gartner et al.
patent: 5084103 (1992-01-01), Myers et al.
patent: 5156679 (1992-10-01), Gartner et al.
WPIDS Abstract No. 86-162552, abstract of German Patent Specification No. 233370, Feb. 1986.
WPIDS Abstract No. 86-185371, abstract of Japanese Patent Specification No. 61-117148, Jun. 1986.

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