FIELD: chemistry; mining.
SUBSTANCE: invention relates to compositions of mixtures used for backfilling of mined space during development of mineral deposits. Composition of filling mixture includes dolomite as filler, portland cement and/or blast-furnace slag, and/or copper smelting slag as binder and water, at that, it contains unfired dolomite with CaO/MgO ratio of less than 1.39, with the following ratio of components, wt.%: said dolomite – the rest, said binder 8–18, water 17–23.
EFFECT: increased rheological properties: mobility, durability, fluidity, workability of filling mixtures and strength.
2 cl, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| FILLING MIXTURE COMPOUND | 2010 |
|
RU2425980C1 |
| HARDENING STOWING MIXTURE | 2011 |
|
RU2456456C1 |
| FILLING MIXTURE COMPOUND | 2010 |
|
RU2430238C1 |
| COMPOSITION OF FILLING MASS | 2012 |
|
RU2513897C1 |
| STOWING MIX | 2010 |
|
RU2445464C1 |
| MODIFIED COMPONENT OF MAGNESIA CEMENT | 2005 |
|
RU2351556C2 |
| FILLING MIXTURE COMPOUND | 2010 |
|
RU2431044C1 |
| GEO-POLYMER BINDING SYSTEM FOR HEAT-RESISTANT CONCRETES, THE BINDING SYSTEM CONTAINING DRY HEAT-RESISTANT CONCRETE MIXTURE, AND ALSO THE MIXTURES APPLICATION | 2014 |
|
RU2664723C2 |
| BINDER BASED ON SOLID MINERAL COMPOUND RICH IN ALKALI-EARTH METAL OXIDE WITH PHOSPHATE-CONTAINING ACTIVATORS | 2015 |
|
RU2698790C2 |
| COMPOSITION OF FILL MIXTURE | 2011 |
|
RU2455493C1 |
