Heat treatment in the control of the setting of cement

Details Heat treatment in the control of the setting of cement Heat treatment in the control of the setting of cement

1995-08-23

1997-04-29

Marcantoni, Paul

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

106746, 106748, 106749, 106750, 264 5, 264 12, 264 15, C04B 743

Patent

active

056244924

ABSTRACT:
Portland cement particles having the characteristics of slow hardening is oduced by a process of heat treating portland cement particles in the temperature range from 1500.degree. to 3000.degree. C. for from 0.5 to 10 seconds and cooling to obtain particles containing an amorphous, glassy shell as an outside layer.

REFERENCES:
patent: Re21633 (1940-11-01), Kaiser
patent: 3003757 (1961-10-01), Mitchell
patent: 3066031 (1962-11-01), Schifferle
patent: 4213791 (1980-07-01), Wilson
patent: 4249952 (1981-02-01), Davis et al.
patent: 4289537 (1981-09-01), Davis et al.
patent: 4333766 (1982-06-01), Moisset et al.
patent: 4388117 (1983-06-01), Wilson
patent: 4477283 (1984-10-01), Wilson

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