crushed shale density and cohesion

PDF A geotechnical investigation on the structural
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The highland Crushed shale samples that passed through 0076 region is a low asymmetrical ridge or cuesta in the mm BSI No 200 sieve and oven-dried at 105 176 C for 24 northern portion of the Awka-Orlu Uplands which trend hours were utilized for the specific gravity tests...

Impact of Geological Factors on Marine Shale Gas
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Geological factors are key elements to control shale gas enrichment and influence the accurate estimation of shale gas reserve However the impact of the main geological factors such as porosity mineralogy and organic matter on marine shale gas enrichment and reserve calculation has not yet been fully clarified Herein we measured gas adsorption porosity mineralogical composition and...

Core Laboratories GRI Crushed Shale Analysis
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GRI Crushed Shale Analysis The exceedingly fine-grained and fracture-prone nature of shale/mudrock reservoir core challenges efficient provision of fundamental core data sets that include porosity permeability grain density and core saturations To do so typically requires special sampling analytical and measurement techniqu...

Methane Adsorption on Shale Insights from Experiments
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535 Methane Adsorption on Shale Insights from Experiments and a Simplified Local Density Model Luo Zuo1 2 3 Yupu Wang4 Wei Guo2 Wei Xiong1 2 Shusheng Gao1 2 Zhiming Hu1 2 and Shen Rui1 2 1 Institute of Porous Flow and Fluid Mechanics CNPC and Chinese Academy of Sciences Langfang 065007 Hebei China...

Characterization of Shear Strength Properties of Spoil
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clay kaolin crushed sandstone and shale The content of each ingredient was varied from 0 to 100 at an interval of 10 and tested their near optimum moisture content OMC A total of 176 samples ie 11 set of test at 4 different normal load containing sandstone-shale sandstone-clay shale-clay...

Properties of Aggregates and its Values for use in
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Contents Properties of Aggregates and its Values for use in Construction1 Aggregates Bulk Density Specific Gravity and Voids2 Aggregates Limiting Values of Mechanical Properties3 Approximate Water Absorption of Aggregates by Weight4 Limits of Deleterious Materials Percentage by Weight Maximum 5 Bulking of Sands for Various Moisture Contents6 Surface Water Carried by Aggregates...

Density of Shale solid in 285 units of density
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Shale solid weighs 2675 gram per cubic centimeter or 2 675 kilogram per cubic meter ie density of shale solid is equal to 2 675 kg/m³ In Imperial or US customary measurement system the density is equal to 1669948 pound per cubic foot lb/ft³ or 15462 ounce per cubic inch oz/inch³...

Relationship between soil cohesion and shear strength
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Cohesion of soil is an important factor of soil consistency The word cohesion however has acquired two connotations In soil physics BA VER 2 for example defines it as the cohesive force that takes place between adja 173 cent particles On the other hand in soil mechanics cohesion...

Density of Rocks and Soils
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Aug 18 2020 0183 32 Example \ \PageIndex 1 \ Density Calculation Calculate the density of a a piece of rock whose mass is 3742 g and which when submerged increases the water level in a graduated cylinder by 139 ml b an rock core sample which is a cylinder...

Determination of Porosity for Core Samples and
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highest density at 278 g/cm3 and lowest porosity at 061 Sample 5 had the lowest density at 067 g/cm3 and the highest porosity at 3801 This demonstrated the inversely proportional relationship of porosity and density The helium porosity of two core samples were found to be 2439 and 3940...

Strength characteristics of genetically different rice and
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Sep 10 2015 0183 32 The strength characteristics of two genetically different shales treated with both Rice Husk Ash RHA and Coconut Husk Ash CHA was evaluated to elucidate responses and effects examine effectiveness of the additives with a view to ultimately provide economically viable and environmental friendly options for modification and hence stabilization 2 to 20 by weight of both RHA and CHA...

Comparison of the geotechnical properties of crushed
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Results indicated that the compacted Abakaliki shale achieved mean Maximum Dry Density MDD value of 186 Mg/m 3 at mean Optimum Moisture Content OMC of 122 Table 1...

Geotechnical Properties of Geologic Materials
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o Cohesion is the result of soil structure and/or cementation Some finite cohesion is generally present in loess due to its unique granular structure and the common occurrence of minor cementation Cohesion in till is a result of ice consolidation and a wide range of...

PDF Importance of soil cohesion on the stability of
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Cohesion is a material property that is independent of the normal stress Coherent or bound materials have strength on shear at normal stresses equal to zero...

Shear Strength of Compacted Shales
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Three test shale embankments were constructed on Ky 11 Preliminary analyses of compaction results from these test sites show that the provision was successful in providing required compaction Moreover this study demonstrated that moisture-density tests may be...

Total Porosity Measured for Shale Gas Reservoir Samples A
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Measuring total porosity in shale gas reservoir samples remains a challenge because of the fine-grained texture low porosity ultra-low permeability and high content of organic matter OM and clay mineral The composition content porosimetry method which is a new method for the evaluation of the porosity of shale samples was used in this study to measure the total porosity of shale gas...

Friction angle for loose crushed stone
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Jun 26 2009 0183 32 Crushed stone I think 40 to even 55 angle of internal friction or more but codes for construction never allow to go as high I think the higher value I have seen as acceptable for calculations is 40 to 41 AASHTO and others again I think to remember limited the angle for non coherent backfills to 34 deg angle of inner friction...

Design Manual Engineering Properties of Soil and Rock
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stratum in terms of density source material etc Soil Strata Soil is a nonhomogeneous porous material for which engineering behavior is greatly influenced by density source material stress history and hydrogeology Some engineering properties eg undrained...

Properties of Oil shale Physical Thermal
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Streak is the color of rock when it is crushed or powdered The streak of Oil shale is white whereas its fracture is not available Luster of Oil shale is the interaction of light with the surface of Oil shale Luster of Oil shale is dull Oil shale cleavage is slaty The specific gravity of Oil shale is 22-28...

Understanding the Geotechnical Report as an Engineering
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The dry density in the top 4 feet is 1277 pound per cubic foot PCF This indicates a well-graded soil with a low void ratio It can be expected to have significant cohesion and friction angle The soil between 5 and 8 feet of depth has a dry density of only 968 pcf...

USCS Description Cohesion kPa Friction angle 176 Soil
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USCS Soil-class Description Cohesion kPa Friction angle 176 GW well-graded gravel fine to coarse gravel 0 40 GP poorly graded gravel 0 38 GM silty gravel 0 36 GC clayey gravel 0 34 GM-GL silty gravel 0 35 GC-CL clayey gravel with many fines 3 29 SW well-graded sand fine to coarse sand 0 38 SP poorly graded sand 0 36 SM silty sand 0 34...

8 STRENGTH OF SOILS AND ROCKS
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Rock Cohesion MPa Friction Angle degrees Range of Confining Pressure MPa Berea sandstone 272 278 0 - 200 Muddy shale 384 144 0 - 200 Sioux quartizite 706 480 0 - 203 Georgia marble 212 253 6 - 69 Chalk 0 315 10 - 90 Stone Mt granite 551 510 0 - 69 Indiana limestone 67 420 0 - 10...

What Is Expanded Shale Learn About Expanded Shale Uses In
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Sep 04 2018 0183 32 The lakebed sediments hardened under pressure to form the shale Expanded Shale Information Expanded shale is formed when the shale is crushed and fired in a rotary kiln at 2 000 F 1 093 C This process causes tiny air spaces in the shale to expand The resulting product is called expanded or vitrified shale...

Multiscale strength homogenization application to shale
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The application of this algorithm to 11 shale samples from the GeoGenome project data base allows us to identify i an invariant value of the solid hardness of clay particles which is independent of clay mineralogy porosity etc and ii shale independent scaling relations of the cohesion and of the friction coefficient with the mean clay...

Comparison of the geotechnical properties of crushed
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Apr 28 2010 0183 32 Shl 3 242 USCS the crushed samples of the Abakaliki Shale are Mean value 232 clayey sand with gravel SC while the samples of the PI LL PI Geotechnical properties of crushed shale Nigeria 593 Table 6 Results of slake durability index tests on some shales from the Asu River Group and the Nkporo Formation Studied unit Location...

Soil and rock properties
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Dependence of friction angle on density in sands NAVFAC 1971 gt 50 gt 85 30-50 65-85 10-30 35-65 4-10 15-35 Loss of true cohesion due to overstress Weakly cemented sand silt Loss of apparent cohesion on wetting Unsaturated silt Static or earthquake liquefaction Loose saturated sand silt...

Estimating Rock Mass Strength
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3 surface as a function of the normal stress is required Procedures to deal with this obstacle will be discussed in Chapter 3 of this report For intact rock s = 1 and m = miValues for mi can be calculated from laboratory triaxial testing of core samples at different confining stress or...

Journal of Petroleum Science and Engineering
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Marcellus shale play as detailed and justified in Rutqvist et al 2013 Wefi rst set the vertical stress gradient maximum principal stress to 26 487 Pa/m corresponding to an overburden density of about 2700 kg/m 3 We then consider the minimum principal stress to...

Some Useful Numbers
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Shale 16 GPa Limestone 24 GPa Chalk 32 GPa Sandstone 04 GPa Steel 80 GPa Wood 4 GPa Glass 19 GPa Lithostatic pressure gradient 2646 MPa/km for = 270 Hydrostatic pressure gradient 98 MPa/km Unconfined compressive strength Granite 100-250 MPa Basalt 100-300 MPa Quartzite 150-300 MPa Sandstone 20-170 MPa Shale 5-100 MPa...

A porochemothermoelastic coupling model for continental
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Nov 01 2019 0183 32 The mud density in the blue area of Fig 9a is greater than that of Fig 9b This finding indicates that shear failure will occur in the shale matrix easier than that along the weak plane when the deviation angle is smaller The mud density in the red area of Fig 9a is less than that of Fig 9b This finding indicates that shear failure will...

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