equipment for rheological properties for backfill in mines

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equipment for rheological properties for backfill in mines

equipment for rheological properties for backfill in mines

equipment for rheological properties for backfill in

equipment for rheological properties for backfill in mines. 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 of CPB simultaneously.

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equipment for rheological properties for backfill in

deposits, in terms of particle size distribution, rheological properties, strength evaluate tailings PSD modifications to optimize backfill characteristics. Aurizon Mines Ltd., Casa Berardi Mine Designed triaxial strength testing equipment to study properties such as the internal angle of friction and cohesion of cured. Read more

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equipment for rheological properties for backfill in

equipment for rheological properties for backfill in mines 9 (Total: 10) 2200 Votes 4400 Comments Give e-mail to us Products / Solutions / About us / Site Map / Copyright © 2007-2013 SAM

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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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Contribution to Laboratorial Determination of Rheological

Rheometers and viscometers are pieces of equipment for directly measuring of the relationship between shear rate and shear stress or apparent viscosity, which characterises the slurry rheology (He et al, 2004). Viscometers measure the viscosity and flow properties of a fluid at a particular shear rate.

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Experimental Study and Application of Rheological

2020-5-8  the rheological parameters of such fluids. We developed a rheometer for high-concentration coal gangue backfill slurry (HCGS rheometer) based on the coal gangue-fly ash backfill practice of Gonggeying Mine, and analyzed the rheological properties of the backfill slurry. The experimental results showed that the Reynolds number of the coal gangue-fly ash backfill slurry was much smaller

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Backfilling technology in Kazakhstan mines

2013-6-8  The article reviews backfilling complexes operating at Kazakhstan mines and describes laboratory and industrial tests of effect of cement-ash binder and plastifier combination on rheological properties and strength of filling masses.

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Rheological properties of cemented paste backfill with

2020-11-1  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 the pipe transport of fresh CPB . Thus, there is a significant disparity in the material properties of CPB in comparison to

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Effect of High Mixing Intensity on Rheological

Cemented paste backfill (CPB) consists of a mixture of fine particles, mainly consisting of tailings and cement dispersed in water. Therefore, it is necessary to introduce an intensive shearing force into the paste during mixing in order to maintain an equilibrium between agglomeration and dispersion. It is influential for the macroscopical fluidity and rheological properties when changes

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PASTE FILL PIPELINE DISTRIBUTION SYSTEMS CURRENT

2011-1-21  of backfill system failures relate to the distribution system (blockages, fill sloughing, pipeline bursts and hammering). The primary reason for these failures is a lack of understanding of the flow behaviour of hydraulic and paste fills. This paper presents a basic overview of the design process for backfill distribution systems.

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Rheological properties of cemented paste backfill with

2020-11-1  Rheological properties of cemented paste backfill with nano-silica: Link to curing temperature yield stress and viscosity of CPB with nS added at the early ages are critical for using CPB technology in underground mines located in cold or warm regions and/or for deep mining. Time and temperature-dependent rheological properties of

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Experimental Study and Application of Rheological

2020-5-8  Keywords: rheological properties, backfill mining, fly ash, gangue Abstract: From the perspective of resource recovery and environmental protection, coal gangue-fly ash cemented backfill coal mining has become an important direction for the green development of coal mines in recent years. Analysis of the rheological parameters of backfill

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Mine Back Filling CIMFR

A brief description of Facilities/ Equipment/Tools/software with photos; Major Facilities: 1 (PLAXIS 3D software for numerical modeling of various geotechnical challenges encountered in mining and allied activities) (Modular Compact Rheometer used for investigating rheological parameters of paste and high concentration backfill)

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Backfilling technology in Kazakhstan mines

2013-6-8  The article reviews backfilling complexes operating at Kazakhstan mines and describes laboratory and industrial tests of effect of cement-ash binder and plastifier combination on rheological properties and strength of filling masses.

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Contribution to Laboratorial Determination of

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 measuring the rheological properties of paste backfill, in particular the yield stress.

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(PDF) Rheological Properties of Ultra-Fine Tailings

2021-7-3  PDF Ultra-fine tailings cemented paste backfill (UCPB) exhibits special rheological characteristics with the effect of an ultrasonic sound field. In Find, read and cite all the research you

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Using Coupled Rheometer-FBRM to Study Rheological

2019-7-1  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 of CPB simultaneously. In this way, the particle/agglomerate size distribution characterized by the focused

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Determining the Rheological Properties of Mine Tailings

2015-7-16  Determining the Rheological Properties of Mine Tailings. Mining activities produce a variety of waste products, including waste rock, slags, overburden, mine water, and tailings. Tailings are leftover mineral byproducts of ore processing. The

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Sulphate induced changes of rheological properties of

2019-9-1  The rheological properties of cemented paste backfill (CPB) are important properties, which determine its flow ability or ease of transport in pipelines to fill underground voids. However, no research has been conducted to understand the effects of the sulphate content in CPB on its rheological properties, even though sulphate ions are usually

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Advances in Underground Mine Backfill Hindawi

Description. Mine backfill is a well-established and proven practice within the underground mining industry. The wide application of backfill technology in mining engineering helps to convert resource into reserve, reduce ore dilution, and improve underground working conditions. Due to the complex structures and various properties of backfill

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Mine Back Filling CIMFR

A brief description of Facilities/ Equipment/Tools/software with photos; Major Facilities: 1 (PLAXIS 3D software for numerical modeling of various geotechnical challenges encountered in mining and allied activities) (Modular Compact Rheometer used for investigating rheological parameters of paste and high concentration backfill)

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EXTENDED ABSTRACT ULisboa

rheological behaviour and properties of fresh paste backfill. For that, a battery of experimental tests was conducted at the GeoLab at the Instituto Superior Técnico in Lisbon, using different paste fill mixtures produced with cement, tap water and tailings from Zinkgruvan and Neves-Corvo mines.

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Time- and Temperature-Dependence of Rheological

Thus, this study aims to investigate the effect of temperature (2°C, 20°C, and 35°C) and time (0 4 h) on the rheological properties (yield stress and viscosity) of CPB samples with different amounts of sodium silicate (0%, 0.1%, 0.3%, and 0.5%) and different binders. The results show that the yield stress and viscosity of CPB with sodium

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UsingCoupledRheometer

2019-7-30  the rheological properties of CPB simultaneously. In this way, the particle/agglomerate size distribution characterized by the filling body and is widely used in metal mines and coal mines[8,9]. Experiment Equipment. In order to observe rheo-logical characteristics of the CPB samples, an R/S four-paddle rotational rheometer

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Determining the Rheological Properties of Mine Tailings

2015-7-16  Determining the Rheological Properties of Mine Tailings. Mining activities produce a variety of waste products, including waste rock, slags, overburden, mine water, and tailings. Tailings are leftover mineral byproducts of ore processing. The

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Backfilling technology in Kazakhstan mines Semantic

The article reviews backfilling complexes operating at Kazakhstan mines and describes laboratory and industrial tests of effect of cement-ash binder and plastifier combination on rheological properties and strength of filling masses.

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Paste Backfill Concrete Equipment Applications

Paste Backfill. Maxon equipment applications include; processing tailings from mining operation; paste treatment and backfill applications for underground hard rock mines; remediation of existing and closed mine tailing ponds; and tailing processing for coal fired power plants. Equipment includes single and twin shaft mixers, remixers and

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Sulfate-induced Changes in Rheological Properties of

2021-5-10  However, the rheological properties of fibre-reinforced CPB and the factors that affect them are not well understood. The objective of this study is to therefore evaluate the effect of sulfate, which is commonly found in CPB, on the yield stress and viscosity of fibre-reinforced CPB through a

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Mine Backfill Services Paterson & Cooke

2014-12-8  characterisation includes not only the basic physical properties of the slurry but also the mineralogy of the solids and the chemical quality of the water. Combined with our in depth understanding of clay mineral properties, it provides an essential tool for predicting the dewatering and flow properties of the backfill product.

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RHEOLOGICAL ADDITIVES FOR COATINGS &

2015-4-30  All LAVIOTHIX® products develop a pseudoplastic rheology in water based systems rpm 12000 14000 16000 18000 20000 cps 0 20 40 60 80 100 120 Laviothix P100 Laviothix P1 Laviothix P0 LAVIOTHIX® is a range of clay-based rheological additives suitable for water-borne coatings: these products are inorganic, based on a selected, purified and activated clay with a very high

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