Process for producing a hardened product of coal ash

Details Process for producing a hardened product of coal ash Process for producing a hardened product of coal ash

1984-09-28

1986-11-11

Dixon, Jr., William R.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 1505, 106DIG1, C04B 702

Patent

active

046220712

ABSTRACT:
A hardened product of coal ash having strength sufficient as a civil engineering or construction material is obtained by treating coal ash with sulfuric acid and/or hydrochloric acid to obtain a first reaction mixture; treating the first reaction mixture with calcium carbonate to obtain a second reaction mixture; mixing the second reaction mixture with a hydraulic material and water to obtain a third reaction mixture; and shaping and curing the third reaction mixture.

REFERENCES:
patent: 2698251 (1954-12-01), Shea et al.
patent: 3870535 (1975-03-01), Minnick et al.
patent: 3953222 (1976-04-01), Bainton
patent: 4375986 (1983-03-01), Pichat

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