FIELD: mining.
SUBSTANCE: invention relates to mining industry and can be used in underground development of mineral deposits with filling of mined space. Invention contains filling mixture composition. Content of filling mixture includes cement, granulated metallurgical slag, crushed stone, sediment, plasticizing additive and water as inert aggregate. Sediment is obtained during reagent purification of mine waste water from sulphate ions by treatment with lime together with alumina cement. Mass ratio of residue to inert aggregate is 1:3–6. Plasticizing additive is taken in amount of 0.5–0.7 wt. % to amount of cement.
EFFECT: lower consumption of cement and inert filler, higher stowing mixture strength.
1 cl, 4 tbl
Title | Year | Author | Number |
---|---|---|---|
LOW-CLINKER HYDRAULIC BINDER AND STOWING MIXTURE BASED ON IT | 2022 |
|
RU2799678C1 |
STOWING MIXTURE COMPOSITION | 2018 |
|
RU2721566C1 |
FILLING MIXTURE COMPOSITION | 2010 |
|
RU2433274C1 |
STOWING MIXTURE COMPOSITION | 2005 |
|
RU2302531C2 |
COMPOSITION OF FILLING MIXTURE | 2001 |
|
RU2186989C1 |
COMPOSITION OF HARDENING MIX FOR FILLING UNDERGROUND VOIDS | 0 |
|
SU1661457A1 |
COMPOSITION OF STOWAGE MIXTURE | 2009 |
|
RU2396435C1 |
FILLING MIXTURE COMPOUND | 2010 |
|
RU2425980C1 |
CONCRETE MIXTURE | 2016 |
|
RU2631741C1 |
COMPOSITION OF STOWING MIXTURE | 2011 |
|
RU2455494C1 |
Authors
Dates
2020-12-21—Published
2019-06-28—Filed