Process of producing hydraulic cement from fly ash

Details Process of producing hydraulic cement from fly ash Process of producing hydraulic cement from fly ash

1980-12-29

1982-05-04

Poer, James

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106DIG1, C04B 904

Patent

active

043280374

ABSTRACT:
A hydraulic cement is prepared by reacting coal fly ash with concentrated phosphoric acid, and crushing or grinding the resulting mixture to granules or a fine powder. The reacted fly ash may be heated to reduce the water of hydration before final crushing or grinding. The resulting hydraulic cement may be mixed with sand and/or gravel aggregate to prepare mortar or concrete mixes for applications similar to Portland cement, or the fly ash cement may be mixed with soils to stabilize them.

REFERENCES:
patent: 3804651 (1974-04-01), Semler

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