iron ore unconfined compressive strengths
Multiple Regression Analysis of Unconfined Compression Strength
attempts a multiple regression analysis of the unconfined compressive strength test results of Portland cement slag fly ash and Calsifrit have on the unconfined compressive strength of these mine tailings Use of iron ore tailings as a construction material Int J of Conceptions on Mechanical and Civil Engineering 3 2 nbsp
Rock Mass Characterization of Ajabanoko Iron Ore Deposit Kogi
Rock samples of iron ore granite and gneiss were collected from the Ajabanoko iron ore deposit and tested in the laboratory to determine engineering properties such as uniaxial compressive strength UCS tensile strength unit weight friction angle cohesion bulk density and porosity Other geotechnical parameters nbsp
Estimation of Strength Properties of Shale from Semantic Scholar
Estimation of strength properties uniaxial compressive and point load from physical properties density porosity and rebound The average uniaxial compressive strength and point load index values are 34 20 MPa and 1 60 MPa This basement rocks contained some economic minerals such as iron ore gemstone nbsp
Reliability estimate of unconfined compressive strength of black
14 Jun 2017 Keywords Quarry Dust Cement Black Cotton Soil Reliability Index Unconfined Compressive Strength Introduction A reliability estimate of an engineering system is defined as the confidence on its ability to Characteristics of Iron Ore Tailings Treated Tropical Black Clay as Road Pavement Sub Base
a study on modes of rock failure under uniaxial compression
24 May 2014 single plane to multiple fracturing in the case of rock specimens as uniaxial compressive strength UCS increases a large range of uniaxial compressive strength UCS and various specimen failure modes are The lapping machine may be a simple rotating iron disc with a minimum of attachments or
Some Useful Numbers
Angle of internal friction ϕ Rock 30° Sand 30 40° Gravel 35° Silt 34° Clay 20° Loose sand 30 35° Medium sand 40° Dense sand 35 45° Gravel with some sand 34 48° Silt 26 35° Because the angle of internal friction ϕ is typically around 25 35° the coefficient of internal friction tanϕ is 0 5 to 0 7 Cohesive nbsp
Characterisation and applications of iron ore Research Online
Kuranchie F A 2015 Characterisation and applications of iron ore tailings in building and construction projects found that the geopolymer bricks produced from iron ore tailings could have a compressive strength as high as Figure 7 7 Variation of unconfined compressive strength UCS with initial setting time
Strength Properties of Rocks and Rock Masses University of
and is denoted as Co or qu Failure takes place continuously from C to D during which macrocracking takes place as the rock becomes more deteriorated and crack coalescence takes place Various authors have compiled the values of the unconfined compressive strength for different rock types Balmer 1953 Johnson nbsp
Slope Stability Analysis of Itakpe Iron Ore Mine Itakpe Nigeria
discontinuities within the critical zone are potentially unstable and can lead to planar failure Markland test for wedge failure was also carried out The great circle of Table 2 Rock properties of Itakpe iron ore mine Rock parameters Itakpe 1 Uniaxial Compressive strength 70 73 MPa 2 Density 3 8 ton m3 3 Cohesion
Strength and Elastic Properties of Paste Backfill at the Lucky Friday
Unconfined compression tests and direct and indicated that the average tensile strengths determined by indirect methods Brazilian and splitting tensile tests were about twice the Electronic reproduction distribution or storage of any part of this paper for commercial purposes without the written consent of ARMA
Application of Rock Mechanics in Surface Indian Bureau of Mines
Plate 22 8 9 Plot Showing the Slope Failures in Goan Iron Ore Mines Plate 23 b excessively high rock stress while mining is at great depth c weathering or swelling of rock d excessive ground The uniaxial compressive strength of rock is measured by loading a cylindrical specimen to its failure in a compressive nbsp
Stabilization of Black Cotton Soil with Lime and Iron Ore Tailings
31 Mar 2017 Tests carried out include index compaction strength and durability Unconfined compressive strength UCS CBR soaked and unsoaked condition and resistance to loss in strength of specimen yielded peak values at 8 lime 8 IOT treatment Microanalysis using scanning electron microscope SEM nbsp
Compressive behaviour of polypropylene filled with iron ore tailings
ITR PPCs with 150 μm fillers produced from C ISC process have lower yield stress compressive strength and Young 39 s modulus at volume contents above 10 per cent It also exhibited lower strain at fracture at volume content above 15 per cent while composites filled with 212 and 300 μm particle size iron ore tailings nbsp
Enhancement of unconfined compressive strength of sand test
To improve the unconfined compressive strength UCS of a novel chemical grout composed of a calcium phosphate compound CPC Chem we performed UCS formation using glucose and yeast Terajima et al 2009 and iron or manganese compound precipitation using iron oxidizing bacteria Weaver et al 2011
Stress Strain Behavior of the Workings during the Rich Iron Ores
of the Yakovlevsky rich iron ores deposit development under the confined aquifers are Stress strain properties of the rich iron ores RIO determined on the undisturbed and disturbed structure samples under the conditions of natural uniaxial compressive strength of the friable ores varies within the range of 1 02 2 1 nbsp
Reliability Estimate of Strength Characteristic of Iron Ore Tailing
10 Aug 2016 Stochastically BSH compactive efforts is the only energy level that can be used to model the 7 days unconfined compressive strength of compacted iron ore tailing treated lateritic soil for use as sub base material in road pavement at the variable ranges of COV of 10 80 at BSH energy level
Correlation between Uniaxial Compressive Strength UET Lahore
indirect measure of the compressive or tensile strength of the rock D 39 Andrea et al 4 performed uniaxial compression and the point load tests on a variety of rocks Correlation between Uniaxial Compressive strength and Point Load Index for Salt Range Rocks 3 Table 1 light grey in colour with thin films of iron oxide
Developing a field test for measuring unconfined compressive
Recommended Citation Cook Bradley J quot Developing a field test for measuring unconfined compressive strength of indurated materials quot 1994 Any copying for commercial 39 purposes or financial gain may be undertaken only with fhe author 39 s Pedocementation by silica carbonates and iron oxides especially at the nbsp
Utilisation of iron ore mine tailings for the production of geopolymer
The effects of the initial setting time curing temperature curing time and activator content on the unconfined compressive strength UCS water absorption and other durability properties of the bricks were investigated X ray diffraction analysis was performed to investigate the phase composition of the geopolymer bricks
