FIELD: manufacture of building materials; production of raw mix for lime-and-sand brick and concrete.
SUBSTANCE: proposed method includes preliminary preparation of fly dust of lime kilns and additive followed by mixing them; used as additive is chemically modified ash of thermal power plant or mixture, mass-%: chemically modified ash of thermal power plant, 1-99; the remainder being natural ash of thermal power plant at the following ratio of components, mass-%: fly dust of lime kilns, 5-20, the remainder being additive. Chemically modified ash is prepared by treatment of natural ash with supersaturated solution of calcium hydrate and holding at elevated or normal temperature for 4-24 h.
EFFECT: enhanced strength of articles at low labor input and minimum of components.
5 cl, 3 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR MANUFACTURING RAW MIXTURE FOR CALCIUM SILICATE BRICK FABRICATION | 1995 |
|
RU2331604C2 |
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RU2479518C1 |
| METHOD OF PRODUCING ASH CEMENT | 2014 |
|
RU2543833C2 |
| BINDER | 1992 |
|
RU2049748C1 |
| CONCRETE MIX | 0 |
|
SU1721036A1 |
| INITIAL COMPOSITION FOR MAKING CONSTRUCTION ARTICLES | 0 |
|
SU1518321A1 |
