Cementitious compositions

Details Cementitious compositions Cementitious compositions

1977-06-22

1980-05-27

Poer, J.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

C04B 702

Patent

active

042048753

ABSTRACT:
A method for preventing shrinkage of alkaline aqueous hydraulic cementitious mixtures during setting and hardening which comprises incorporating in the mixtures a monopersulfate salt, or a monopersulfate salt together with at least one peroxygen compound other than the monopersulfate salt; and hydraulic cement compositions for preparing such alkaline aqueous hydraulic cementitious mixtures. The monopersulfate salt, or monopersulfate salt together with at least one peroxygen compound other than monopersulfate salt, generates sufficient oxygen gas during setting and hardening of the alkaline aqueous hydraulic cementitious mixture to provide controlled expansion of the mixture.

REFERENCES:
patent: 1902993 (1933-03-01), Ellerbeck
patent: 2024791 (1935-12-01), Adolph et al.
patent: 2318754 (1943-05-01), Cavadino
patent: 2371928 (1945-03-01), Schneider
patent: 3729328 (1973-04-01), Magder
Chemical Abstracts, vol. 70, 1969, 90517w.

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