Admixture use in cemented rock fill AusIMM
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Admixture use in cemented rock fill AusIMM.

Admixture use in cemented rock fill - ausimm

Admixture use in cement products is commonplace in the construction and mining industries. Many Australian mines have an operational concrete batch plant and stock hydration control and water reducing admixtures. The benefits of admixture use, especially in shotcrete is understood and well documented. Cemented rock fill (CRF) is used to fill stope voids and create stable vertical and

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Admixture use in cemented rock fill

Admixture use in cement products is commonplace in theconstruction and mining industr ies. Many Australian mines have an operational concrete batch plant and stock hydration control and water reducing admixtures. The benefits of admixture use, especially in shotcrete is understood and well documented. Cemented rock fill (CRF) is used to fill stope voids and create stable vertical and

Get Price

Optimisation of cemented rock fill strength for open stope ...

The use of cemented rock fill (CRF) for support of open stope walls has increased in the Australian underground mines operations over the last five years due in part to its low capital cost. In open stoping the exposed CRF masses require adequate strength and stiffness, in order to resist the forces and to limit the displacement associated with movements in the rock mass surrounding the ...

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Stawell's Cemented Rock Fill System - ausimm

Stawell Gold Mines operates the Magdala underground mine in western Victoria, Australia. Several orebodies are extracted by longhole open stoping at a depth of 900 m below the town of Stawell. Some stopes are backfilled with cemented slurry rock fill (CSRF) to ensure stability, increase recovery of ore reserves, minimise dilution of ore grades, and add value to the project.

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Rockbond Admixtures for Cement and Concrete, RB AFCC ...

To penetrate and fill voids in rubble, rock, masonry, brick and concrete. To fill cables and ducts, and holding down assembles. Rockbond Admix 301. Non Flow Accelerator : To produce quick strength, quick drying, site batched, renders, mortars and concretes at 20ºC. To accelerate the early strength development of cementitious materials at low temperatures. To speed up application and finishing ...

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Optimisation of cemented rock fill strength for open stope ...

The use of cemented rock fill (CRF) for support of open stope walls has increased in the Australian underground mines operations over the last five years due in part to its low capital cost. In open stoping the exposed CRF masses require adequate strength and stiffness, in order to resist the forces and to limit the displacement associated with movements in the rock mass surrounding the ...

Get Price

Influence of admixtures on cemented backfill strength ...

Mount Isa Mines Limited has used Cemented Rock Fill (CRF) since 1973 to fill voids within the copper orebodies where pillar extraction is an integral component of the overall extraction sequence ...

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Rockbond Admixtures for Cement and Concrete, RB AFCC ...

To penetrate and fill voids in rubble, rock, masonry, brick and concrete. To fill cables and ducts, and holding down assembles. Rockbond Admix 301. Non Flow Accelerator : To produce quick strength, quick drying, site batched, renders, mortars and concretes at 20ºC. To accelerate the early strength development of cementitious materials at low temperatures. To speed up application and finishing ...

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INFLUENCE OF ADMIXTURES ON CEMENTED BACKFILL

This paper presents laboratory test results showing the influence of cement admixtures on the compressive strength of three types of cemented backfill: cemented aggregate fill (CAF), cemented hydraulic fill (CHF) and cemented paste fill (CPF). These results can be used to select the admixture dosage to achieve a desired compressive strength of a cemented backfill.

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Factors Influencing the Strength of Cemented Aggregate Fill

The effect of cement admixtures on mechanical properties of cemented fill has been investigated. An An admixture dosage of 0.3%, 0.4% and 0.5% was used in cemented aggregate fill without tailings ...

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Basic Mine Fill Materials 13 - ACG website

2.7.5 Admixtures ... 7.13 Rock fill production .....107 7.14 Delivery of rock fill in mining ... 7.15 Cement slurry rock fill trials at Mount Isa Mines (MIM) in 1996 .....108 7.15.1 Large cylinder ...

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(PDF) Characterisation of cemented rock fill materials for ...

Cemented rock fill (CRF) is commonly used in cut-and-fill stoping operation in underground mining. This allows for the maximum recovery of ore. Backfilling can improve stope stability in ...

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Paper: Admixtures in backfill applications for cost and ...

The successful use of admixtures in various projects globally is not well documented or known, and this knowledge is basically confined to a very small specific group. These successful references have not facilitated the introduction of admixtures in backfill plants on a regular basis. Various reasons for not using admixtures as an integral part of backfill systems and operations are often ...

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(PDF) Admixtures in backfill applications for cost and ...

PDF On Jan 1, 2011, Zlatko Martic and others published Admixtures in backfill applications for cost and performance benefits Find, read and cite all the research you need on ResearchGate

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MasterRoc MF 901 - Master Builders Solutions

Recommended for use in: Cemented paste fill Cemented high density hydraulic fill Cemented rock fill Cemented aggregate fill MasterRoc® MF 901 High performance plasticizing and water-reducing admixture for cementitious mine backfill 31 31 23 23 Backfill, Flowable Fill A brand of

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Influence of admixtures on cemented backfill strength ...

Mount Isa Mines Limited has used Cemented Rock Fill (CRF) since 1973 to fill voids within the copper orebodies where pillar extraction is an integral component of the overall extraction sequence ...

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Effect of mineral admixtures on flow properties of fresh ...

15/07/2020  Ordinary Portland cement (OPC) type PO 42.5R conforming to GB175–2007 was used as a binder agent alone or blended with fly ash (FA), granulated blast furnace slag (Slag), and silica fume (SF) as mineral admixtures at various replacement levels (10–30 wt% for FA, 20–60 wt% for Slag, 5–15 wt% for SF). The proportions are in the typical range used in most CPB operations. The function of ...

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(PDF) Characterisation of cemented rock fill materials for ...

Cemented rock fill (CRF) is commonly used in cut-and-fill stoping operation in underground mining. This allows for the maximum recovery of ore. Backfilling can improve stope stability in ...

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cemented rock fill plant - domyidomki

Australian mines have an operational concrete batch plant and stock hydration control and water reducing admixtures. The benefits of admixture use, especially in shotcrete is understood and well documented. Cemented rock fill (CRF) is used to fill stope voids. Get Price ; Cemented Rock Fill Plant. Mining Science and Technology, 12 (1991) 333-343 333 Elsevier Science Publishers B.V., Amsterdam ...

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MasterRoc MF 901 - Master Builders Solutions

Recommended for use in: Cemented paste fill Cemented high density hydraulic fill Cemented rock fill Cemented aggregate fill MasterRoc® MF 901 High performance plasticizing and water-reducing admixture for cementitious mine backfill 31 31 23 23 Backfill, Flowable Fill A brand of

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MasterRoc MF 101 - Master Builders Solutions

Guidelines for Use Dosage: This admixture is used within the range of 16-64 fl oz/cwt (1-4 L/100 kg) of cement for most backfill mixtures. Because of variations in backfill types, dosage rates other than the recommended amounts may be required. In such cases, contact your local sales representative. As the dosage of MasterRoc MF 101 admixture increases up to 64 fl oz/cwt (4 L/100 kg) of cement ...

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Use of Cemented Rock Fill for Enhanced Pillar Recovery in ...

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Laboratory Testing of Cemented Rock Fill for Open Stope ...

Cemented rock fill (CRF) is often used to support open stope voids. This allows for the full recovery of ore while achieving global mine stability. In such cases, the exposed CRF masses require adequate compressive strength and stiffness to resist the forces and limit the displacement associated with movements in the rock mass surrounding the excavations. The CRF material preparation often ...

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Production AusIMM Public - az659834.vo.msecnd

stoping sequence, with the primary stopes backfilled using a cement fill. An assessment of these options was undertaken which determined that the second full extraction method was the most beneficial to the operation, and could be achieved using a cement grout (Minova’s FB200 grout) to stabilise the loose rockfill in conjunction with implementing a sequence where the primary stopes would be ...

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Injections and rock consolidation - Sika Concrete

This helps to fill and stabilise large voids and to give additional support to the roof and ribs of the excavated structure. The stabilising effects of the SikaFix® range ensure a faster and safer construction process. The range also includes polyurethane foam resin designed for the filling and stabilisation of smaller voids and smaller cavities. It also expands both with and without water.

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