Process for placing cement composition having high strength

Details Process for placing cement composition having high strength Process for placing cement composition having high strength

1984-07-10

1986-04-29

Dixon, Jr., William R.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 93, 106314, 106 90, 264 42, 264333, C04B 2100

Patent

active

045854866

ABSTRACT:
A process for placing a cement composition having high strength is provided. The process comprises the steps of adding a viscosity increasing agent, vacuum de-bubbling under reduced pressure and allowing the de-bubbled cement composition to be hardened. At the vacuum de-bubbling step, relatively large foams present in the cement composition are removed and only fine bubbles are left in the composition. The strength of the cement composition is remarkably improved by the removal of large bubbles.

REFERENCES:
patent: 2485857 (1949-10-01), Bower
patent: 4118241 (1978-10-01), Bernett
patent: 4188231 (1980-02-01), Valore
patent: 4365977 (1982-12-01), Egbert
patent: 4462837 (1984-07-01), Baker et al.

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