WO1998049115A1 - Matiere remblai a densite de pulpe elevee, prise rapide et resistance initiale elevee et procede connexe - Google Patents

Matiere remblai a densite de pulpe elevee, prise rapide et resistance initiale elevee et procede connexe Download PDF

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Publication number
WO1998049115A1
WO1998049115A1 PCT/CA1998/000378 CA9800378W WO9849115A1 WO 1998049115 A1 WO1998049115 A1 WO 1998049115A1 CA 9800378 W CA9800378 W CA 9800378W WO 9849115 A1 WO9849115 A1 WO 9849115A1
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WO
WIPO (PCT)
Prior art keywords
slurry
backfill
weight
component
binding material
Prior art date
Application number
PCT/CA1998/000378
Other languages
English (en)
Inventor
Henghu Sun
Shuqin Li
Weirui Xu
Original Assignee
Sungeric International Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sungeric International Inc. filed Critical Sungeric International Inc.
Priority to EP98916727A priority Critical patent/EP0988260A1/fr
Priority to AU70223/98A priority patent/AU7022398A/en
Publication of WO1998049115A1 publication Critical patent/WO1998049115A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—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
    • C04B28/02—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 containing hydraulic cements other than calcium sulfates
    • C04B28/06—Aluminous cements
    • C04B28/065—Calcium aluminosulfate cements, e.g. cements hydrating into ettringite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—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
    • C04B28/02—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 containing hydraulic cements other than calcium sulfates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028—Aspects relating to the mixing step of the mortar preparation
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00034—Physico-chemical characteristics of the mixtures
    • C04B2111/00146—Sprayable or pumpable mixtures
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00724—Uses not provided for elsewhere in C04B2111/00 in mining operations, e.g. for backfilling; in making tunnels or galleries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Definitions

  • the present invention is directed to method and material for underground mine backfill with high pulp density fast setting and high early strength backfill. More particularly, it is directed to high crystal water content, fast setting and high early strength binding material which is mixed with mine tailings, sands, ground sands, industrial solid waste materials, or their mixture, and water to make a high pulp density backfill slurry with 65 - 85% pulp density. More particularly still, the slurry is then sent to the mine stope through a pipeline either by gravity or by pumping. The backfill slurry in the stope solidifies quickly to form a backfill body with high early strength. The backfill body reaches more than 70% of its final strength in about 12 to 72 hours.
  • the present backfill method may be widely used for upwards, downwards, and other mining applications.
  • the ratio of water to cement has to be low on the one hand, but on other hand, to increase flowability of the backfill slurry, much more water has to be used.
  • the typical water to cement ratio is between 0.3 and 0.6 for Portland cement in order to get proper hydration, which is a relatively small ratio of water needed for hydration.
  • pulp density of the slurry has to be less than 65 - 70% , to make it easily transportable to the mine stope through a pipeline. The excess amount of water in the backfill slurry will have to be removed in the stope.
  • Coarse aggregates such as sands, ground sands of coarse fractions from tailings are usually used in order to make dewatering easier.
  • the cement backfill body takes 7 - 28 days to reach the required strength. As a result, a long waiting period is necessary in order to continue mining Hie ores beside the backfilled body. The cycle of drilling, blasting, ore transportation and backfill is prolonged.
  • Tailing utilization efficiency is therefore low, at less than 40% .
  • the large quantity of unused fine tailings has to be disposed of on land at the surface, which causes environmental problems on mine surfaces.
  • a pressure filter is required for making paste, where capital cost is high and the process is complex, (b) Pipeline blockage occurs quite often due to too high pulp density, so that the paste slurry transportation through a pipeline is very difficult; (c) Both curing periods and operation cycles of mining are too long, since Portland cement is used as the binding material; (d) Operating costs are high due to high cement consumption; (e) It is difficult to fill up all of the space in a stope, because of the poor flow characteristics of the paste.
  • United States Patent No. 5,141,365 issued August 25, 1992 to Smart discloses that a void in a mine is backfilled by a backfill slurry comprising water, an inert filler, e.g. mine tailings, and a binder, e.g. cement, lime or slag, to which a gelling agent, e.g. sodium silicate, is added just before placement.
  • a backfill slurry comprising water, an inert filler, e.g. mine tailings, and a binder, e.g. cement, lime or slag, to which a gelling agent, e.g. sodium silicate, is added just before placement.
  • the backfill slurry is made of tailings, water, Portland cement, lime and slag.
  • United States Patent No. 4, 101,333 issued July 18, 1978 to Wayment discloses a method of backfilling in underground mine operations by a mill tailings slurry which is dewatered to provide a material with a controller water content to permit the dewatered material to be used as a backfill without requiring any substantial dewatering after placement and which material can, when desired, be mixed with selected quantities of cement to provide a mortar for backfilling or surface covering.
  • the salient feature of this patent is using de- watered tailings for mine backfill.
  • the dewatering of the backfill slurry underground in the mine is not necessary.
  • Portland cement is mixed with prepared backfill aggregate to make a backfill slurry.
  • United States Patent No. 5,340,235 issued August 23, 1994 to Milliken discloses a method for hydraulically backfilling empty mined salt cavities.
  • the method comprises combining at least one pozzolanically active waste material with an effective amount of an alkaline earth metal in the form of an alkaline earth metal hydroxide or alkaline earth metal oxide and saturated brine to form a pozzolanic mixture, wherein the relative proportions of said pozzolanically active waste material, alkaline earth metal hydroxide or alkaline earth metal oxide and saturated brine are sufficient for reaction under atmosphere conditions in said salt cavity to form a stable, low porosity, load bearing pozzolanic cement; and hydraulically depositing said pozzolanic mixture in the empty salt cavity.
  • United States Patent No. 5,464,473 issued November 7, 1995 to Shiao discloses a backfill for an engineered barrier used to contain radioactive waste has a predetermined amount of clayic material and a predetermined amount of a reinforcement material with hydrophobic surface characteristics.
  • the reinforcement material may include hydrophobic compounds selected from group consisting of organic polymers or inorganic materials on which a layer of hydrophobic compounds is formed.
  • the hydrophobic reinforcement material results in the backfill maintaining a very low water permeability while providing high mechanical strength and other properties suitable for use in a repository of radioactive waste.
  • United States Patent No. 4,059,963 issued November 29, 1977 to Wayment discloses a method of backfilling in underground mine operations by a mill tailings slurry which is dewatered to provide a material with a controlled water content to permit the dewatered material to be used as a backfill without requiring any substantial dewatering after placement and which material can, when desired, be mixed with selected quantities of cement to provide a mortar for backfilling or surface covering.
  • United States Patent No. 4,746,249 issued May 24, 1988 to Haigh et al. discloses an aqueous slurry of backfill material e.g. slimes, includes a settable material and an activator therefor, e.g. pulverized fuel ash and lime, and a lubricant e.g. clay and a plasticizer, e.g. a lignosulphonate so that the slurry can be pumped over long distances but will then set to develop high early strength.
  • United States Patent No. 5, 106,422 issued April 21, 1992 to Bennett et al. discloses a rapid-setting self-hardening backfill composition and a method of installation.
  • composition comprising a minor amount of Class C fly ash as a primary constituent and other filler materials such as Class F fly ash in major amount.
  • Class C fly ash as a primary constituent
  • other filler materials such as Class F fly ash in major amount.
  • the rapid-setting of the composition provides a rapidly attainable strength of the order of about 20 psi within about 4 hours to permit overlaying a wearing course of paving material and reopening of excavated areas of streets and roadways without undue traffic delays and congestion.
  • the backfilling composition ranges in amount from about 2 to 10 parts by weight filler material to about 1 part by weight Class C fly ash with sufficient water to react with both Class C fly ash and filler material.
  • the composition utilizes by-products of coal-fired power stations to form a most economic backfilling material and method of utilization to provide both early strength and precisely controlled permanent strength to permit ready reexcavation.
  • Patent No. 28639 titled Rapid set composition.
  • binder consumption is very high at 300 - 500 kg per cubic metre. This is only used for special cases in coal mines due to high cost.
  • backfill technology of the present invention, full tailings from a mine mill can be used as aggregates.
  • the tailings In prior methods, when using Portland cement as binder, the tailings must be classified to remove fine tailings; only about 40% of the tailings with particle sizes larger than 37 microns can be used as aggregates.
  • all tailings without classification can be used for backfill.
  • Backfill slurry may be made by mixing any kind of tailings with water to make a slurry with 65 - 85% pulp density by weight. It is then sent to the mine stope through one pipeline, rather than two pipelines.
  • the weight of the present binding material added to the backfill slurry is between 0.5 and 20% by weight.
  • natural sands, ground sands, industrial solid waste materials or a mixture of thereof may be used as aggregates.
  • the natural sands include river sands, sea sands, sands from mountains.
  • the ground sands are made from grinding rock into particle sizes of 0.04 - 5 mm.
  • the industrial solid waste materials could be iron smelter slag, power plant slag and various industrial waste slags.
  • a high pulp density fast setting and high early strength backfill material and method for use in underground mines comprising: one part of mine tailings, natural sands, ground sands, and solid industrial waste materials as aggregate; a binding material of between 0.5 and 20% by weight mixed with water to form a slurry with 65 - 85% pulp density by weight; and transporting the slurry to the stope of a mine through a single pipeline.
  • the present binding material is composed of six groups of components in the following ratios:
  • Component 1 can be one of, or a mixture of sulpho-aluminate cement clinkers, ferro- aluminate cement clinkers, fluo-aluminate cement clinkers and high aluminate cement clinkers, in any ratio.
  • the concentration of component 1 in the binding material is between 40 - 90% by weight, preferably at 45 - 80% by weight and best at 50 - 70% by weight.
  • Component 2 can be one of, or a mixture of anhydrite and gypsum, in any ratio.
  • the concentration of component 2 in the binding material is between 5 - 50% by weight, preferably at 10 - 40% by weight and best at 15 - 40% by weight.
  • Component 3 can be one of, or a mixture of lime and hydroxide lime in any ratio.
  • concentration of component 3 in the binding material is up to 30% by weight, preferably at 3 - 25% by weight and best at 5 - 20% by weight.
  • Component 4 can be one of, or a mixture of KC1, NaCl, CaC12, MgC12, ZnC12, Na2CO3, K2CO3, Li2CO3, Li containing chemical compounds, Na2SO4, K2SO4, A12(SO4)3, Na2S2O3, NaF, Na3PO4, NaNO3, KNO3, all alkalis, triethanolamine, tri-isopropanolamine, carbamide, in any ratio.
  • the concentration of component 4 in the binding material is up to 8% by weight, preferably at 0.05 - 6% by weight and best at 0.2 - 5% by weight.
  • Component 4 is used as accelerating or/and high early strength reagent.
  • Component 5 can be one, or a mixture of sugars, molasses, lignosulphonates, tartaric acid, tartrates salts, citric acid, citrate salts, boric acid and borate salt, in any ratio.
  • the concentration of component 5 in the binding material is up to 2% by weight, preferably at 0.05 - 1 % by weight and best at 0.1 - 1 % by weight.
  • Component 5 is used as retarding or/and dispersion reagent.
  • Component 6 can be one of, or a mixture of bentonite, limestone, flyash, silica fume, slag powder, cement, talc powder, clay powder, bauxite powder, anhydrite, gypsum, lime and hydroxide lime, in any ratio.
  • the concentration of component 6 in the binding material is up to 30% by weight, preferably at 0.1 - 10% by weight and best at 0.5 - 5% by weight.
  • a method for producing a binding material for high pulp density, fast setting, high early strength backfill comprising: mixing of the above six groups of components in preselected ratios; and making and grinding the components to pass 100 Tyler mesh.
  • the ratios of the six components are:
  • component 2 10 - 40% by weight
  • component 4 0.05 - 6% by weight, whereby component 4 is used as accelerator or/and high early strength reagent;
  • component 5 0.05 - 1 % by weight, whereby component 5 is used as retarder or/and dispersion reagent;
  • (f) component 6 0.1 - 10% by weight.
  • the method of making high pulp density, fast setting and high early strength backfill slurry for underground backfill comprises using one of, or a mixture of mine tailings, natural sands, ground sands and industrial solid waste materials at any ratio as backfill aggregate; mixing the backfill aggregate, water and material together uniformly to make a slurry with pulp density of 65 - 85% by weight; and transporting the slurry to the mine stope through a single pipeline by pumping or by gravity; wherein the ratio of the binding material to the backfill aggregate is between 1:5 and 1 :100 by weight.
  • a preferred method for preparation of high pulp density, fast setting and high early strength backfill slurry comprises the following steps: mixing one of, or a mixture of mine tailings, natural sands, ground sands and industrial solid waste materials, in any ratio, with water to form a homogenous and uniform sand slurry with a pulp density of 63 - 82% by weight; adding binding material to the sand slurry through a feeder and mixing the slurry for 2 - 8 minutes in a mixture to form a backfill slurry with pulp density of 65 - 85% by weight; wherein the ratio of the newly invented binding material added to the backfill slurry is from 1:5 to 1 : 100 by weight; and transporting the backfill slurry to the stope in the mines through a pipeline by pumping or by gravity.
  • the preparation of high pulp density, fast setting and high early strength backfill slurry for underground backfill comprises the following steps: mixing one of, or a mixture of mine tailings, natural sands, ground sands or industrial solid waste materials, in any ratio, with water to form a homogenous and uniform sand slurry with a pulp density of 63 - 82% by weight; transporting the sand slurry to a site close to the stope in the mine through a pipeline by pumping or by gravity, at which site, adding binding material to the sand slurry inside the pipeline through a feeder, wherein the binding material added is well-mixed with the sand slurry through a turbulent flow pattern inside the pipeline on its way to the stope; and wherein the formed backfill slurry has a pulp density of 65 - 85% by weight, and the ratio of the binding material added to the backfill slurry is from 1:5 to 1:100 by weight.
  • Another method of providing binding material comprises: mixing components 1 , 2 and 3 as defined above to form another component 7 as a binding material, wherein the concentration by weight of each component in the binding material is as follows: component 1 40 - 90%; component 2 5 - 50%; component 3 3 - 30%; grinding the component 7 to pass 100 Tyler mesh; mixing component 4 with component 6 in a ratio of 1 to up to 5 by weight, then grinding the mixture to pass 70 Tyler mesh and packaging the result separately to form (accelerating reagent) component 8; mixing component 5 with component 6 in a ratio of 1 to up to 5 by weight, respectively, then grinding the mixture to pass 70 Tyler mesh and packaging the result separately to form
  • a binding material required with a shorter setting time can be made by mixing component 7 with component 8 in a ratio of (95 - 100):(0 - 5); on the other hand, with a longer setting time, typically between 40 and 120 minutes, the binding material can be made by mixing the component 7 with component 9 in a ratio of (97 - 100):(0 - 3), when the slurry transportation distance is long.
  • a method for making the high pulp density, fast setting and high early strength backfill slurry for underground backfill comprises: mixing one of, or a mixture of mine tailings, natural sands, ground sands and industrial solid waste materials at any ratio with water to form sand slurry with a 63 - 82% of pulp density by weight in a station at the surface before it is transported to underground, then transported to a place close to the backfill stope through a pipeline by pumping or gravity; adding the binding material to the formed sand slurry in a pipeline through a feeding system, and mixing the binding material well with the sand slurry by turbulent flow inside the pipe; wherein the quantity of the binding material added is about 2 - 20% of the sand slurry by weight.
  • the preparation method for high pulp density, fast setting and high early strength backfill slurry for underground backfill comprises: mixing of mine tailings, natural sands, ground sands and industrial solid waste materials in any ratio, with component
  • backfill material mixture (as described above) to form backfill material mixture; then adding water to the above mixture to make a slurry with 65 - 85% pulp density by weight; and transporting the slurry to a place close to the backfill stope through the pipeline by pumping or gravity, wherein (accelerating reagent 8) component 8 (described above) is added in an amount of 0 - 5% the weight of the formed slurry; wherein the backfill slurry is made uniform by the turbulent flow inside the pipe.
  • Another preparation method for high pulp density backfill slurry comprises: adding one of, or a mixture of natural sands, ground sands or industrial solid waste materials, in any ratio, to low pulp density tailings from mine processing mills to make a denser slurry with 62 - 80% pulp density sand slurry by weight; adding the binding material (described above) to the slurry through a feeding system with a quantity from 2 to 20% of the weight of the formed slurry to form a backfill slurry with 65 - 85% pulp density.
  • Tailings from a gold mine is concentrated from 20 - 30% solids to above 70% pulp density slurry.
  • the present binding material is added through a measuring and mixing device to the formed tailing slu ⁇ y at a ratio of the binding material to the formed tailing slurry being 1 to 30. After mixing for 5 minutes, the slurry is sent to the underground mine through a pipeline. Samples modules (4" x 8") with different setting time are made for testing setting time and compressive strength. The result is shown as below:
  • the present binding material composition is as follows:
  • the initial setting time 40 minutes
  • the final setting time 180 minutes
  • a slurry with 75% pulp density by weight is made by mixing natural sands with water.
  • Mixture 1 is made of sulpho-alumimate cement clinkers and ferro-aluminate cement clinkers at a ratio of 1 : 1
  • Mixture 2 is made of gypsum and anhydrite at a ratio of 2:8
  • Mixture 3 is made of hydroxide lime and lime at a ratio of 3:7
  • the binding material is composed of:
  • the initial setting time 36 minutes
  • the final setting time 166 minutes
  • the materials listed above is ground to pass 100 Tyler mesh to form the binding material. It is then added to the formed sand slurry which is with 72% of pulp density. The quantity added of the binding material is 5% of the weight of slurry. After mixing for 5 - 8 minutes, the slurry is filled to a few modules for strength testing. The result is as follows:
  • the initial setting time 50 minutes
  • the final setting time 200 minutes
  • the binding material composed as shown in table 1 which is ground to pass totally 100 Tyler mesh, is separately mixed with classified tailing and alluvial sand slurries of 68%, 72% and 76% of pulp density.
  • the ratios of the classified tailings alluvial sand to the binding material, Portland cement type 10, Portland cement type 30, slag cement 10 - 90 are 15:1 , 30:1 , 45:1, respectively.
  • the composition and strengths measured are shown in the following table 1 :
  • the quantities added of sodium carbonate, lithium hydroxide and bentonite are 3%, 0.02% and 5% of the weight of the backfill slurry, respectively. These reagents are well mixed with the backfill slurry by a turbulent flow inside the pipeline. The slurry is then filled to the stope.
  • the uniformed backfill slurry is transported to the mine through a pipeline by pumping and filled in the stope.
  • the 3 days strength of the sample from the backfill body in the stope is above 80 psi.
  • Table 2 shows that the compressive strengths of using the present binding material are much higher than the compressive strengths of either using the Portland cement type 10 and type 30. Especially, very high early strengths have been achieved by using the present binding material. And 1 part of the binding material by weight used can replace 3 times of the Portland cement to get nearly the same compressive strength within 7 days.
  • Table 2 also shows very good properties of using the present binding material, which can not be achieved with using Portland cement or any other traditional binding material in the raining backfill field.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

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.
PCT/CA1998/000378 1997-04-24 1998-04-22 Matiere remblai a densite de pulpe elevee, prise rapide et resistance initiale elevee et procede connexe WO1998049115A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP98916727A EP0988260A1 (fr) 1997-04-24 1998-04-22 Matiere remblai a densite de pulpe elevee, prise rapide et resistance initiale elevee et procede connexe
AU70223/98A AU7022398A (en) 1997-04-24 1998-04-22 High pulp density, fast setting and high early strength backfill method and material

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US4148797P 1997-04-24 1997-04-24
CA2,203,575 1997-04-24
US60/041,487 1997-04-24
CA2203575 1997-04-24

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WO1998049115A1 true WO1998049115A1 (fr) 1998-11-05

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CN (1) CN1252781A (fr)
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EP1072567A1 (fr) * 1999-07-30 2001-01-31 Ciments Francais Procédé d'inertage de dèchets par enrobage dans un liant hydraulique et prémix pour la mise en oeuvre de ce procédé
US6431796B1 (en) * 2000-06-19 2002-08-13 Inco Limited Mine backfill
GB2394220A (en) * 2002-08-22 2004-04-21 Tarmac Ltd Disposal of waste quarried material
WO2004065330A3 (fr) * 2003-01-21 2004-10-14 Logic Logistic Consult Materiau de construction et son procede de production.
FR2901270A1 (fr) * 2006-05-18 2007-11-23 Commissariat Energie Atomique Composition a base de ciment pour l'enrobage d'une solution aqueuse contenant du bore, procede d'enrobage et composition de coulis cimentaire
CN101979837A (zh) * 2010-08-31 2011-02-23 中国瑞林工程技术有限公司 一种低温环境下提高全尾砂充填体强度的方法
CN102531482A (zh) * 2012-01-12 2012-07-04 瓮福（集团）有限责任公司 一种充填采矿法的充填料桨及其制备方法
CN103396018A (zh) * 2013-08-02 2013-11-20 大连铭源全建材有限公司 一种永冻土及淤泥固结材料
CN107056227A (zh) * 2017-04-17 2017-08-18 长安大学 一种基于废弃物的环保型地源热泵回填材料及其配制方法
EP3110729A4 (fr) * 2014-02-24 2017-11-01 Active Minerals International LLC Remblais, procédés de fabrication correspondant et son utilisation
WO2021046585A1 (fr) * 2019-09-04 2021-03-11 K2019441565 (South Africa) (Pty) Ltd Procédé et composition de remblai
CN112479617A (zh) * 2020-12-18 2021-03-12 安徽科博建材科技有限公司 一种高硫尾矿充填胶凝材料用外加剂及其生产工艺
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CN113248209A (zh) * 2021-06-07 2021-08-13 成都理工大学 一种低碱性水泥黏土注浆材料及其制备方法
CN115028402A (zh) * 2022-05-10 2022-09-09 山东鲁碧建材有限公司 一种大水灰比尾砂填充用胶固粉及其制备方法
CN115073117A (zh) * 2022-06-28 2022-09-20 河北筑盛科技股份有限公司 矿用低温超高结晶水速凝充填支护材料及其制备方法
CN115557727A (zh) * 2022-12-06 2023-01-03 湖南大学 一种矿尾砂衍生自成型材料及其应用

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CN105152612A (zh) * 2015-01-27 2015-12-16 四川大学 一种新型高强掺杂高水材料
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CN108191283B (zh) * 2018-03-22 2020-04-21 中国建筑材料科学研究总院有限公司 硫铝酸盐水泥复合增强剂
WO2021023366A1 (fr) 2019-08-05 2021-02-11 Wacker Chemie Ag Compositions de liant cimentaire
CN112521111B (zh) * 2019-09-17 2022-04-01 北京华泥新材料科技有限公司 一种超快硬混凝土修复料及其制备方法、使用方法
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EP1072567A1 (fr) * 1999-07-30 2001-01-31 Ciments Francais Procédé d'inertage de dèchets par enrobage dans un liant hydraulique et prémix pour la mise en oeuvre de ce procédé
FR2796934A1 (fr) * 1999-07-30 2001-02-02 Francais Ciments Procede d'inertage de dechets par enrobage dans un liant hydraulique et premix pour la mise en oeuvre de ce procede
US6419738B1 (en) 1999-07-30 2002-07-16 Ciments Francais Process for rendering waste inert by cladding in a hydraulic binder and pre-mix for practicing this process
US6431796B1 (en) * 2000-06-19 2002-08-13 Inco Limited Mine backfill
GB2394220A (en) * 2002-08-22 2004-04-21 Tarmac Ltd Disposal of waste quarried material
WO2004065330A3 (fr) * 2003-01-21 2004-10-14 Logic Logistic Consult Materiau de construction et son procede de production.
KR101393043B1 (ko) 2006-05-18 2014-05-12 꼼미사리아 아 레네르지 아토미끄 에뜨 옥스 에너지스 앨터네이티브즈 붕소 함유 수용액의 코팅용 시멘트계 조성물, 코팅 방법 및시멘트 그라우트 조성물
WO2007135067A1 (fr) 2006-05-18 2007-11-29 Commissariat A L'energie Atomique Composition a base de ciment pour l'enrobage d'une solution aqueuse contenant du bore, procede d'enrobage et composition de coulis cimentaire
US8153552B2 (en) 2006-05-18 2012-04-10 Commissariat A L'energie Atomique Cement-based composition for the embedding of a boron-containing aqueous solution, embedding process and cement grout composition
FR2901270A1 (fr) * 2006-05-18 2007-11-23 Commissariat Energie Atomique Composition a base de ciment pour l'enrobage d'une solution aqueuse contenant du bore, procede d'enrobage et composition de coulis cimentaire
CN101979837A (zh) * 2010-08-31 2011-02-23 中国瑞林工程技术有限公司 一种低温环境下提高全尾砂充填体强度的方法
CN102531482A (zh) * 2012-01-12 2012-07-04 瓮福（集团）有限责任公司 一种充填采矿法的充填料桨及其制备方法
CN103396018A (zh) * 2013-08-02 2013-11-20 大连铭源全建材有限公司 一种永冻土及淤泥固结材料
CN103396018B (zh) * 2013-08-02 2015-10-28 大连铭源全建材有限公司 一种永冻土及淤泥固结材料
EP3110729A4 (fr) * 2014-02-24 2017-11-01 Active Minerals International LLC Remblais, procédés de fabrication correspondant et son utilisation
CN107056227A (zh) * 2017-04-17 2017-08-18 长安大学 一种基于废弃物的环保型地源热泵回填材料及其配制方法
CN112780336A (zh) * 2019-01-18 2021-05-11 湖北宜化江家墩矿业有限公司 压浸式充填采矿工艺
CN112780336B (zh) * 2019-01-18 2023-03-31 湖北宜化江家墩矿业有限公司 压浸式充填采矿工艺
WO2021046585A1 (fr) * 2019-09-04 2021-03-11 K2019441565 (South Africa) (Pty) Ltd Procédé et composition de remblai
CN112479617A (zh) * 2020-12-18 2021-03-12 安徽科博建材科技有限公司 一种高硫尾矿充填胶凝材料用外加剂及其生产工艺
CN113248209A (zh) * 2021-06-07 2021-08-13 成都理工大学 一种低碱性水泥黏土注浆材料及其制备方法
CN115028402A (zh) * 2022-05-10 2022-09-09 山东鲁碧建材有限公司 一种大水灰比尾砂填充用胶固粉及其制备方法
CN115028402B (zh) * 2022-05-10 2023-03-24 山东鲁碧建材有限公司 一种大水灰比尾砂填充用胶固粉及其制备方法
CN115073117A (zh) * 2022-06-28 2022-09-20 河北筑盛科技股份有限公司 矿用低温超高结晶水速凝充填支护材料及其制备方法
CN115557727A (zh) * 2022-12-06 2023-01-03 湖南大学 一种矿尾砂衍生自成型材料及其应用
CN115557727B (zh) * 2022-12-06 2023-03-14 湖南大学 一种矿尾砂衍生自成型材料及其应用

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