Early high-strength portland cement and method of manufacture

Details Early high-strength portland cement and method of manufacture Early high-strength portland cement and method of manufacture

1978-01-30

1979-07-10

Poer, James

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106102, C04B 702

Patent

active

041606744

ABSTRACT:
A cement with rapid strength gain having normal setting and volume change characteristics and its method of manufacture are disclosed. The cement has substantially all particles over 20 microns removed which advantageously results in higher early strength than normal portland cements. This is important in the prestress and precast concrete industry, and early high-strength cement is desirable for other uses such as patching or resurfacing highways and airport runways or in operations where early form removal is desired. The use of chlorides or other accelerators is unnecessary to obtain early high strengths; although, these and plasticizers can be used if desired.

REFERENCES:
patent: 1737904 (1929-12-01), Witte
patent: 2006386 (1935-07-01), Durbin et al.
patent: 2042833 (1936-06-01), Durbin
patent: 3305375 (1967-02-01), Jakacki
patent: 3689294 (1972-09-01), Brunauer

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