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1. (WO1998049115) HIGH PULP DENSITY, FAST SETTING AND HIGH EARLY STRENGTH BACKFILL METHOD AND MATERIAL
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/049115 International Application No.: PCT/CA1998/000378
Publication Date: 05.11.1998 International Filing Date: 22.04.1998
Chapter 2 Demand Filed: 16.11.1998
IPC:
C04B 28/02 (2006.01) ,C04B 28/06 (2006.01) ,C04B 40/00 (2006.01)
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
28
Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
02
containing hydraulic cements other than calcium sulfates
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
28
Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
02
containing hydraulic cements other than calcium sulfates
06
Aluminous cements
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
40
Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
Applicants:
SUNGERIC INTERNATIONAL INC. [CA/CA]; 324 Ester Road Sudbury, Ontario P3E 5C4, CA (AL, AM, AT, AU, AZ, BA, BB, BE, BF, BG, BJ, BR, BY, CA, CF, CG, CH, CI, CM, CN, CU, CY, CZ, DE, DK, EE, ES, FI, FR, GA, GB, GE, GH, GM, GN, GR, HU, IE, IL, IS, IT, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MC, MD, MG, MK, ML, MN, MR, MW, MX, NE, NL, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SN, SZ, TD, TG, TJ, TM, TR, TT, UA, UG, UZ, VN, ZW)
SUN, Henghu [CN/CA]; CA (UsOnly)
LI, Shuqin [CN/CA]; CA (UsOnly)
XU, Weirui [CN/CN]; CN (UsOnly)
Inventors:
SUN, Henghu; CA
LI, Shuqin; CA
XU, Weirui; CN
Agent:
SADIK, Achmed, N.; P.O. Box 908 Station B Ottawa, Ontario K1P 5P9, CA
Priority Data:
2,203,57524.04.1997CA
60/041,48724.04.1997US
Title (EN) HIGH PULP DENSITY, FAST SETTING AND HIGH EARLY STRENGTH BACKFILL METHOD AND MATERIAL
(FR) MATIERE REMBLAI A DENSITE DE PULPE ELEVEE, PRISE RAPIDE ET RESISTANCE INITIALE ELEVEE ET PROCEDE CONNEXE
Abstract:
(EN) This invention discloses a high pulp density, fast setting and high early strength backfill method for underground mining, in which novel binding materials, with high early strength properties, are used as the binding reagent, where mine tailings, natural sands, ground sands and industrial waste materials are used as aggregate. The binding material, aggregate and water are mixed together uniformly to produce a high pulp density backfill slurry with 65-85 % pulp densities. The backfill slurry produced is transported to underground mining stopes through a pipeline by gravity or pumping. Once the backfill slurry fills the stope, it quickly solidifies within several hours into a solid backfill body with high early strength. Because of the large amount of mine tailing being used as aggregates without classification, the surface pollution in mines is decreased.
(FR) La présente invention concerne un procédé de remblayage à densité de pulpe élevée, prise rapide et résistance initiale élevée. Ce procédé est destiné à une exploitation minière souterraine. Selon ce procédé, de nouvelles matières liantes, présentant des propriétés de résistance initiale élevée, sont utilisées en tant que réactif liant alors que des résidus miniers, sables naturels, sables pulvérisés et matières-déchets industriels sont utilisés en tant qu'agrégat. La matière liante, l'agrégat et l'eau sont mélangés ensemble, uniformément, en vue de produire une laitance de remblayage à densité de pulpe élevée (entre 65 et 85%). La laitance de remblayage produite est transportée au niveau de gradins de mines souterraines grâce à une canalisation utilisant la gravité ou le pompage. Une fois que la laitance de remblayage a rempli le gradin, elle se solidifie rapidement, en quelques heures, en un corps de remblayage solide à résistance initiale élevée. Grâce à la grande quantité de résidus miniers qui est utilisée en tant qu'agrégats sans classification, on diminue la pollution de surface des mines.
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, HU, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TR, TT, UA, UG, US, UZ, VN
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, SD, SZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0988260CN1252781CA2235526AU1998070223ID020.223