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Pore and strength characteristics of cemented paste ...

To ensure safe and efficient application of CPB for sulphide tailings, its pore and strength characteristics should be investigated. ... CPB can also help to recover the pillar ores, ... Predicting the uniaxial compressive strength of cemented paste backfill from ultrasonic pulse velocity test. Nondestruct. Test.

Study on the Strength Development of Cemented Backfill ...

Formulating and optimising the compressive strength of ... material was primarily basic silicate minerals remaining after floating a Ni/Cu concentrate from the crushed and ground sulphide ore.

Two Characteristic Functions of Sulphide Ore Behavior ...

Download Citation | Two Characteristic Functions of Sulphide Ore Behavior under Biaxial Compression | Two curves are plotted for the behavior of …

Design and application of an efficient mining method for ...

compressive strength test (Figure 2) and Brazilian test (Figure 3) were conducted on the three typical rock types (marble, basalt and ore-bearing basalt), by the Instron-1346 electro-hydraulic servo compression machine. Table 2 lists the basic properties of the rocks.

EOSC433: Geotechnical Engineering Practice & Design

The Trout Lake Cu-Zn sulphide deposit was ... 1982. The deposit is a VMS-type deposit that involves two ore zones 500 m apart, which reach depths exceeding 1200 m. 4 of 45 Erik Eberhardt – UBC Geological Engineering EOSC 433 (2017) ... compressive strength of the vein material is 218 MPa, and the tensile

compressive strength sulphide ore

- compressive strength sulphide ore. Double wedge adjusting device, Elastic limit damping device. C6X Jaw Crusher is new equipment used for crushing hard or abrasiveness stones. It is possess of detachable frame without welding structure, double wedge adjusting device, elastic limit damping device and integrated motor seat, which will …

Tables for Case 1A Tutorial - iRing

MASSIVE SULPHIDE HIGH STRENGTH ... There is no data and no solution since the value of reflected tensile shock exceeds the dynamic compressive rock/ore strength. The options are; For overbreaking (break hyperbola cannot be constructed, powder factor is too high),

Compressive strength behaviour of sulphur tailings paste ...

Compressive strength behaviour of sulphur tailings paste backfill: ... content of tailings was 6.1% and the main sulphide was pyrite, the L120 of samples using ordinary Portland cement (OPC) as a binder was 47.4%. ... Ore processing produces a large quantity of tailings.

Recovery of copper sulphides mineral ... - ScienceDirect

In such case, ore is ground to, at least 300 μm, depending on the size of sulphide grains. Thus, if valuable minerals can be liberated, fully or partially, while grinding ore to a size coarser than ∼300 μm, then that specific coarser size …

Cemented paste backfill of sulphide-rich tailings ...

Cemented paste backfill of sulphide-rich tailings: ... Mining activities involve the extraction of ores from the earth's crust. ... At the predetermined curing periods (up to 360 days), the CPB samples were subjected to unconfined compressive strength (UCS) …

compressive strength sulphide ore - jakkalsvallei.co.za

Dec 24, 2008· 10%· The lower the ore grade, the lower the damage initiation stress threshold. In the host rocks, the damage was initiated at about 0.3–0.4 of the uniaxial compressive strength. Hence, the application of Eq. 3 to sulphide ores will over predict damage in …