Expansive cement

Details Expansive cement Expansive cement

1982-02-10

1983-12-06

Poer, James

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106104, 106314, C04B 735

Patent

active

044191367

ABSTRACT:
An improved expansive cement and method of forming same. An expansive clinker containing a stable calcium alumino sulfate compound is separately ground to a selected surface area greater than about 4600 sq. cm/gm. The ground expansive clinker is then blended with a ground cement clinker and with gypsum to form the expansive cement. The expansive cement formed in accordance with the present invention requires less of the expansive clinker than expansive cements known in the art to achieve the same magnitude of expansion.

REFERENCES:
patent: 3155526 (1964-11-01), Klein
patent: 3251701 (1966-05-01), Klein
patent: 3857714 (1974-12-01), Mehta
Construction Technology Laboratories Report to Department of Energy Entitled "Energy Conservation Potential of Portland Cement Particle Size and Distribution, Final Report" dated Mar., 1979.

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