Cement compositions

Details Cement compositions Cement compositions

1975-04-11

1976-08-31

Douglas, Winston A.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

260 775R, 260 775AP, 260 25AM, 260 28R, 260 292TN, C04B 7356

Patent

active

039778894

ABSTRACT:
Cement compositions setting readily at temperatures below 0.degree. C are disclosed which are prepared by mixing together and allowing to cure a hydraulic cement, an inert filler, an organic polyisocyanate, water and coal tar. The organic polyisocyanate is used in an amount to provide an excess of isocyanate groups over the isocyanate-reactive groups contained in the coal tar itself; the weight of organic polyisocyanate and coal tar, taken together, is at least equal to the weight of the water used. Such compositions, improved by the addition of coal tar, exhibit advantages over conventional cement mixes and known urethane, epoxy and polyester resin-containing concretes.

REFERENCES:
patent: 1744869 (1930-01-01), Cross
patent: 3412050 (1968-11-01), Elkin et al.
patent: 3772051 (1973-11-01), Shearing
patent: 3778290 (1973-12-01), Shearing

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