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equipment for rheological properties for backfill in mines

equipment for rheological properties for backfill in

An overview on the use of paste backfill technology as a ground ... The use of cemented paste backfill (CPB) is an in- creasingly important ... tice for use in many cut-and-fill mines around the ... lowed by a discussion on the rheological properties of CPB. ..... platform for both mining equipment

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Equipment For Rheological Properties For Backfill

Equipment For Rheological Properties For Backfill In Mines Fionca Machinery is a total solution provider and large exportor for crushing and grinding equipments . With excellent product quality and good after-sales service, it has been highly praised in domestic and overseas markets and won the favor of many customers around the world.

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equipment for rheological properties for backfill in

..... equipment for rheological properties for backfill in mines « equipment for. stoping is The platinum mines have this equipment is South African Underground .... » Learn More. gcse coal mining and weathering worksheet. Stone Crusher Equipment. ...barite for heavy aggregate,Quarry Equipment

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Rheological Properties of Cemented Tailing Backfill

It is generally accepted that the rheological behavior of cemented tailing backfill can be approximated using the Bingham model , which requires two independent properties to describe the rheological behavior, including yield stress, which corresponds to the shear stress required to initiate the flow of cemented tailing backfill, and plastic viscosity, which describes paste resistance to the flow of cemented tailing backfill

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Rheological properties of cemented paste backfill

01-11-2020  The rheological properties of CPB are used to show its behavior under flow. CPB is a non-Newtonian fluid that can maintain a constant flow under high shear stresses while low stresses inhibit its flow. The flowability or workability of a CPB mixture entirely governs the ease of

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Determining the Rheological Properties of Mine

Tailings are currently used as backfill in underground mines, stored in open pits, dried and stacked, or pumped through pipelines into tailings ponds on site to allow the solid particles to separate from the water and settle on the bottom. The water is then reused in mining operations.

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Geotechnical Applications Of Rheological Models

Equipment For Rheological Properties For Backfill In Mines Chandrakant S. Desai: Constitutive modeling and computer methods in geotechnical engineering 7 INTRODUCTION In the continuing pursuits for realistic models for

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Mine backfill - tu-freiberg.de

Hydraulic backfill: liquid backfill is placed via pipes, belts or trucks Paste backfill: pasty backfill is characterized by high solid content (> 65%) trans-ported through pipes by hydraulic pressure Mechanical backfill: dry granular material is placed via belts, chuts, pipes or trucks in

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equipment for rheological properties for

..... equipment for rheological properties for backfill in mines « equipment for. stoping is The platinum mines have this equipment is South African Underground .... » Learn More. gcse coal mining and weathering worksheet. Stone Crusher Equipment. ...barite for heavy aggregate,Quarry Equipment

More

Determining the Rheological Properties of Mine

Tailings are currently used as backfill in underground mines, stored in open pits, dried and stacked, or pumped through pipelines into tailings ponds on site to allow the solid particles to separate from the water and settle on the bottom. The water is then reused in mining operations.

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Contribution to Laboratorial Determination of Rheological ...

2.1 Mine backfill 4 2.2 Paste backfill 5 2.2.1 Supply of materials 5 2.2.2 Mix design 6 2.2.3 Production 9 2.2.4 Future challenges 10 2.3 Rheology 12 2.3.1 Rheological properties, concepts and models 12 2.4 Paste backfill rheology 18 2.4.1 Determinant factors 19 2.4.2 Yield Stress 21 2.4.3 Measurement methodologies 24

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Rheological properties of cemented paste

01-11-2020  The rheological properties of CPB are used to show its behavior under flow. CPB is a non-Newtonian fluid that can maintain a constant flow under high shear stresses while low stresses inhibit its flow. The flowability or workability of a CPB mixture entirely governs the ease of

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(PDF) Rheological Properties of Cemented Tailing

PDF Workability is a key performance criterion for mining cemented tailing backfill, which should be defined in terms of rheological parameters such... Find, read and cite all the research you ...

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Strength and Elastic Properties of Paste Backfill at the ...

Mining with Backfill. Figure 2 shows a typical stope that is being prepared for backfilling. The first step is to spread a layer of broken waste rock or muck on the floor about a 0.15 m (0.5 ft) thick. Steel reinforcement bars or rock bolts are placed into this muck on a 1.2 m by 1.2 m (4ft by 4 ft) square pattern.

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CFD Simulation of Pipeline Transport Properties of Mine ...

backfill pump equipment represents an enormous expenditure for a mine. Therefore, an increasing amount of attention has been paid to improve the transport properties of paste slurry while satisfying the transportation and strength requirements of the backfill [10].

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Using Coupled Rheometer-FBRM to Study

Abstract. Rheological properties, such as the yield stress, viscosity, and thixotropy, are related to the microstructure of cemented paste backfill (CPB). To highlight the relationship, two instruments were combined to measure the changes in the microstructure and the rheological properties

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Mine Backfill Services - Paterson Cooke

poor ground conditions, cemented backfill is considered to maintain an acceptable extraction rate. The scope of work included the design of a modular backfill plant and infrastructure, capable of supplying one mining level, filling five panels in four hours. The backfill base material tailings is a combination of ISA milled Merensky and UG2 tailings.

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State-of-the-Art Techniques for Backfilling Abandoned Mine ...

probability of subsidence, methods to backfill the mine void with various types of materials have been developed. This U.S. Bureau of Mines report describes the available technologies for subsidence abatement and discusses their operation and application. The basis of these abatement methods is the replacement of the mined material with mine waste.

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equipment for rheological properties for

..... equipment for rheological properties for backfill in mines « equipment for. stoping is The platinum mines have this equipment is South African Underground .... » Learn More. gcse coal mining and weathering worksheet. Stone Crusher Equipment. ...barite for heavy aggregate,Quarry Equipment

More

Contribution to Laboratorial Determination of Rheological ...

Rheology is among the most important properties of paste backfill that determine its transportability for long distances underground. The rheological characterisation of paste backfill is a difficult and complex task, given the high number of variable factors. So far, no standard procedures and/or methods have been established for

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Time- and Temperature-Dependence of

Cemented paste backfilling is a novel tailings-management method that is widely used in the mining industry to minimize the environmental and geotechnical risks associated with traditional mine-waste management techniques, ensure safe work conditions in underground mines, and increase mine productivity. To enhance the early age strength of cement ...

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(PDF) Rheological Properties of Cemented Tailing

PDF Workability is a key performance criterion for mining cemented tailing backfill, which should be defined in terms of rheological parameters such... Find, read and cite all the research you ...

More

Strength and Elastic Properties of Paste Backfill at the ...

Mining with Backfill. Figure 2 shows a typical stope that is being prepared for backfilling. The first step is to spread a layer of broken waste rock or muck on the floor about a 0.15 m (0.5 ft) thick. Steel reinforcement bars or rock bolts are placed into this muck on a 1.2 m by 1.2 m (4ft by 4 ft) square pattern.

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(PDF) A review of underground mine backfilling

Cemented paste backfill (CPB) technology is one of the backfilling methods that use mine tailings, different binders and water to obtain durable and stiff materials for filling stopes.

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Cemented paste backfill modification using different types ...

Cemented paste backfill (CPB) is widely used in backfilling underground mine voids. It consists of fine grained mine tailings with a small dosage of binder (~ 3–10%). Cement is the common binder, which is currently being used in most of the mines in North Queensland, Australia. In an effort to control backfilling costs, investigations are being

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Performance of cemented coal gangue backfill

strength of backfill with suggested dosage is not less than 0.7 MPa. 4 Evaluation of rheological properties of slurry with suggested dosage Rheological properties of slurry with suggested dosage, such as slump, diffusibility and denseness are listed in Table 6. The slurry is proved to be perfect in

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State-of-the-Art Techniques for Backfilling Abandoned Mine ...

mine refuse, sand, or flyash) bywashing or pumping the material into the mine withwater (fig.2). The fillmate-rialistransported into the mine asaslurry anddeposited in the void until the void iscompletely filled or there is ablockage of the injection pipe. Bulkheads and mine pillars are

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HYDRAULIC BACKFILL TECHNOLOGY FOR THE CLOSURE OF THE ...

HYDRAULIC BACKFILL TECHNOLOGY FOR THE CLOSURE OF THE ABANDONED SULFIDE MINE IN MÁTRASZENTIMRE J. FAITLI 1, R. WEISZ 2 1. Introduction The Mátraszentimre underground base-metal mine is found 100 km east of Budapest, in the Mátra Mountains near the town of Gyöngyös. The mine used to produce about 100-150 kt of low grade Pb-Zn ore, annually.

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Time- and Temperature-Dependence of

Cemented paste backfilling is a novel tailings-management method that is widely used in the mining industry to minimize the environmental and geotechnical risks associated with traditional mine-waste management techniques, ensure safe work conditions in underground mines, and increase mine productivity. To enhance the early age strength of cement ...

More

Gwalia mine backfill system operational review

2.3 Rheological characterisation An Anton Paar Rheolab QC rotational viscometer with a temperature control bath was used to determine a rheogram for the uncemented and cemented backfill slurries. The rotational viscometer data was used to determine the rheological properties of the uncemented and cemented paste.

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Contribution to Laboratorial Determination of Rheological ...

Rheology is among the most important properties of paste backfill that determine its transportability for long distances underground. The rheological characterisation of paste backfill is a difficult and complex task, given the high number of variable factors. So far, no standard procedures and/or methods have been established for

More

Mechanical Analysis of Roof Subsidence Based on ...

rheological properties of the backfill material included a loading device and a compacting device, as shown in Fig. 3. The YAS-5000 electrohydraulic servo pressure tester - (Changchun Kexin Experimental Equipment Co., Ltd), China) was used as the loading device. With a maximum axial force of 5,000 kN, this machine can provide a

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State-of-the-Art Techniques for Backfilling Abandoned Mine ...

mine refuse, sand, or flyash) bywashing or pumping the material into the mine withwater (fig.2). The fillmate-rialistransported into the mine asaslurry anddeposited in the void until the void iscompletely filled or there is ablockage of the injection pipe. Bulkheads and mine pillars are

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Design and Characterization of Underground

The mixture design and optimization of CPB are based on laboratory- and paste plant-scale testing. The uniaxial compressive strength of paste backfill material is universally accepted as one of the most important design parameters. The other design parameters are material characterization, dewatering and rheological properties.

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Interface Shear Behavior of Cementing

This paper presents the findings from an experimental investigation that was conducted to assess the shear behavior and the changes in the shear behavior and strength parameters for cemented paste backfill (CPB)–CPB interface as well as the effects of key influential factors (normal stress, curing time, interface roughness, and tailings) on the shear characteristics at the CPB–CPB interface.

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Rheological properties using model 900

Rheological properties using model 900 viscometer 1. 2015 Kamal Abdurahman Group:B 11/2/2015 Rheological Properties Using Model 900 Viscometer Supervised By : Mr.Pshtewan Jaf Mr.Sarhad Mr.Goran 2. Contents 1- Aim. 2- Theory. 3- Apparatus. 4- Procedure. 5-Calculation. 6- discussion. 7- references. Aim of experiment: 3.

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EA4 Manual - Rheological Properties of

Rheological properties of a polymer are closely related to its structures, such as molecular weight and phase structures. Characterization of rheological properties of a polymer may thus also provide structural information of the polymer. Rheometers and viscometers are widely used equipment for characterization of rheological properties of ...

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