unconfined compressive strength of granite basalt

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strength and deformation properties of granite,… pdf

to failure. The difference in the unconfined compressive strength between the slow and the rapid rates of loading for the rocks tested varied considerably. The dynamic compressive strength factor for the granite was less than 1; for the basalt, 1.35; for the limestone,. 1.52; and for the tuff, 1.7^. The compressional wave velocity...

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Compressive Strength - CiteSeerX pdf

high-strength concrete, and the relationships between compressive strength, flexural strength, and fracture properties (fracture energy and characteristic length) are studied. The concrete mixes contain either basalt or crushed limestone aggregate with a maximum size of 19 mm (3/4 in.) and an aggregate volume factor (ACI...

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11 Rock mass properties - AGH pdf

Table 11.2: Field estimates of uniaxial compressive strength. Grade* Term. Uniaxial. Comp. Strength. (MPa). Point. Load. Index. (MPa). Field estimate of strength. Examples. R6. Extremely. Strong. > 250. >10. Specimen can only be chipped with a geological hammer. Fresh basalt, chert, diabase, gneiss, granite, quartzite. R5.

Page 1 Weathering effects on the strength and… pdf

Malanjkhand granite, Nagpur basalt; and Delhi quartzite, occurring in central and northern parts of India. The deformational behaviour is studied in terms of variation in tangent modulus (Eso) and initial modulus (E) due to weathering. The power relationship between uniaxial compressive strength (gº) and Eso shows strong...

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An Engineering Assessment of the Strength and… pdf

The use of standard relationships between point load index (Is(50) ), Uniaxial Compressive Strength (UCS) and elastic modulus ... region. These projects provided a significant amount of Uniaxial Compressive Strength (UCS) and modulus testing. ..... Conglomerate and basalt rock was also tested, but not enough data was.

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Ocean Drilling Program Scientific Results Volume 148 pdf

We have measured the unconfined strength and the tangent Young's modulus under uniaxial loading conditions of 16 mini- ..... All basalt data. 2.75. 2.8. 2.85. 2.9. Bulk density, g/cm3. 2.95. Figure 3. Relationship between bulk density and unconfined compressive strength (Co) for the diabase samples from Hole 504B.

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gsi: a geologically friendly tool for rock mass strength… pdf

Table 1: Field estimates of uniaxial compressive strength of intact rock.3. Grade* Term. Uniaxial. Comp. Strength. (MPa). Point. Load. Index. (MPa). Field estimate of strength. Examples. R6. Extremely. Strong. > 250. >10. Specimen can only be chipped with a geological hammer. Fresh basalt, chert, diabase, gneiss, granite,.

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Rock Properties of Greywacke Basement Hosting ... - Stanford… pdf

26 Feb 2014 ... field are hosted in Torlesse Terrane greywacke rocks of 'granite-rhyolite' provenance and are down-faulted toward the NW (Wood et al., 2001). This terrane is dominated by ... Ocean Sciences, University of Liverpool. Unconfined compressive strength (UCS) tests were carried out on samples from both.

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Strength Properties of Rocks and Rock Masses - University… pdf

14. Table 1. Typical values of uniaxial strength (in MPa) for nine common rock types (after. Johnson and Degraff, 1988). Rock. Tensile Strength. (MPa). Compressive Strength. (MPa). Limestone. Sandstone. Sandstone. Sandstone. Mudstone. Limestone. Limestone. Ironstone. Sandstone. 18.00 ± 0.62 (20). 19.17 ± 0.21 (23).

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using the point load test to determine the uniaxial… pdf

Published comparisons between the point load and uniaxial compressive strength tests for sedimentary rock. Reference. Rock Type .... SILTSTONE. SANDSTONE. LIMESTONE. 0. 25. 50. 75. 100. Count. 0.50. 1.00. 1.50. 0. 25. 50. 75. 100. Count. 0.50. 1.00. 1.50. Standard Deviation of Is50. (Compared with the mean).

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Ultimate Bond Strength of Anchors in Rock | Geotechpedia…

25 Aug 2016 ... The bond strength is the mobilized shear resistance along the rock-grout interface. ... According to BS 8081 [1], "For weak rocks where the unconfined compressive strength is less than 7 ΜPa, UCS tests on representative samples should be carried out. ... These are Basalt, Limestone and Weathered Shale.

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Correlations Between Index Properties and Unconfined… pdf

Student Scholarship. 2011. Correlations Between Index Properties and. Unconfined Compressive Strength of Weathered. Ocala Limestone. Raoaa Farah. University of North Florida. This Master's Thesis is brought to you for free and open access by the. Student Scholarship at UNF Digital Commons. It has been accepted for.

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basalt rock compressive strength - YouTube

11 Aug 2016 ... This is a simple video slideshow, if you want to know more details, please click on our website , we will provide a professional answer and quality of services . If this video does not meet your needs I apologize here.

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EFFECTS OF AGGREGATE TYPE, SIZE, AND CONTENT ON ... pdf

The effects of aggregate type, size, and content on the behavior of normal and high-strength concrete, and the relationships between compressive strength, flexural strength, and fracture energy are discussed. The concrete mixtures incorporate either basalt or crushed limestone, aggregate sizes of 12 mm ('h in.) or 19 mm...

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Lectures on Rock Mechanics - IITK pdf

Siltsone. Limestone. Chalk. Schist. Phyllite. Quartzite Diorite. Diabase. Tuff. Fine. Shale. Mudstone. Calcareous. Mudstone. Slate. Amphibolite Rhyotite. Basalt ... Specific Gravity of Solids, G s. • Unit Weight, γ. • Porosity, n. • Ultrasonic Velocities (V p and V s. ) ( p s. ) • Compressive Strength, q u. • Tensile Strength, T. 0.

Models for estimating uniaxial compressive strength and… pdf

estimation, uniaxial compressive strength, Young's modulus, intact rock material. Pregledni rad ... fresh basalt, chert, diabase, gneiss, granite, and .... dolomitic limestone and schist. Yagiz, 2009. [23]. UCS - uniaxial compressive strength [MPa]; E- elastic modulus [GPa];. SRH - Schmidth hardness. Equation. Type of rock.

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A new testing method for indirect determination of the…

A new testing method for the indirect determination of unconfined compressive strength (UCS) of rock core samples is presented. .... Relatively fresh granite, andesite/basalt, sandstone, gypsum, marble block samples having an approximate dimension of 45×45×30 cm were collected from different locations of Turkey in this...

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Brittle strength of basaltic rock masses with… pdf

25 Jun 1993 ... parameters including unconfined compressive strength of intact basalt and two others related to the degree of fracturing of the ... modulus, 5-50 GPa; Poisson's ratio, 0.3; tensile strength,-0.2 to -2 MPa; uniaxial compressive strength, 12-63 ..... minerals such as granite, quartz, and water ice [Atkinson and.

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chapter five classification of shear strength of joints… pdf

Moderatelv hard rock. 1~ ____ H~ardrock. Very hard rock. Unconfined compressive strenrth (UCS). 1-25 MPa. 25 - 50 MPa. 50-100 MPa. 100-200 MPa. > 200 MPa. Rock type. Mudstone, Sandstone. Basalt. Dolerite, Granite. Table 5.1. Classification of intact rock strength (Deere and Miller, 1966). PhD-Chapter05-2003.doc.

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Predicting the compressive and tensile strength… pdf

on ultramafic and basaltic rocks. ... Uckapili/Nigde. Granite. Igneous. 8. Ortakoy/Aksaray. Granite (Anadolu grey). Igneous. 9. Kaman/Kirsehir. Granite(Kaman rosa). Igneous. 10. Kaman/Kirsehir. Granite .... Indentation hardness index (IHI), uniaxial compressive strength (UCS), Brazilian tensile strength values (BTS),.

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Chapter 2: Principles of Drilling and Excavation - Boston… pdf

molten state, of which basalt is the prime example. Such rocks ... Gneiss Euclides da Cunda. Dam, Brazil. 2.79. 78.4. 0.22 32.4. Dworshak Dam,. USA. 2.79 53.6*. 0.34. 162. 6.89 Mg-fg, foliations at 45°. At 50% fract. Granite .... stability analysis, and it appears in different forms: shear strength, uniaxial compressive strength.

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Some Useful Numbers pdf

26.46 MPa/km (for ρ = 2.70). Hydrostatic pressure gradient. 9.8 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. Limestone. 30-250 MPa. Marble. 35-60 MPa. Slate. 100-200 MPa. Quartzite. 150-300 MPa. Concrete.

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Bearing Capacity of Rocks - ResearchGate pdf

Bearing Capacity of Rocks. Intact Rock Mass. A rock mass with joint spacing greater than 4 to 5 times the width of the footing. Local and. General shear failure is associated to brittle. General shear failure is associated to brittle and ductile rock respectively.

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Mining Rock Mass Rating - EduMine

uniaxial compressive test is preferred. Uniaxial Compressive Strength, > 250 MPa, 100 - 250 MPa, 50 - 100 MPa, 25 - 50 MPa, 5 - 25 MPa, 1 - 5 MPa, < 1 MPa. Rating JA1 .... Strong, > 250, > 10, 50 - 60, Rock material only chipped under repeated hammer blows, fresh basalt, chert, diabase, gneiss, granite, quatzite. R4 Very

Rock & mineral hardness - OoCities

11 Jan 2003 ... The highest unconfined compressive strength observed in a rock is on the order of 400 MPa (e.g. nephritic jade). ... and lower porosity igneous rocks, such as basalt and diabase (dolerite) are generally higher in rock hardness than that of coarser grained igneous rocks, such as granite, diorite, and gabbro.

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Compressive strength of rocks - - PetroWiki

4 Jun 2015 ... General rock failure criterion can be reduced to a few parameters dependent on lithology (m) and the uniaxial compressive strength (C0). Lithology is commonly derived during log analysis, so m may be estimated (Table 1). What is needed still is an initial measure of rock strength provided by C0. C0 can be...

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Frontiers | Geomechanical rock properties of a basaltic…

To do this, we evaluated the physical (porosity, permeability) and mechanical (strength) properties of basaltic rocks at Pacaya Volcano (Guatemala) through a variety of laboratory experiments, including: room temperature, high temperature (935°C), and cyclically-loaded uniaxial compressive strength tests on as-collected...

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Limits on strength and deformation properties of jointed…

Typical values of strength parameters for intact basalt at ambient temperature (20°C) and negligible confining pressure are Young's modulus, 78±19 GPa; Poisson's ratio, 0.25±0.05; tensile strength, −14.5±3.3 MPa; unconfined compressive strength, 266±98 MPa; and conhesion, 66 MPa. Corresponding values for a basaltic...

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3 Intact rock - ScienceDirect

a____ 2 o N 20 lO /(s 2.5,,4 6.9 12.5 25 50 100 200 400 Unconfined compressive strength, oc (MPa) Metamorphic: ................ 1 Quartzite 2 Gneiss,, 3 Marble i--,.--4a Schist, steep foliation .... 4b Schist, fiat foliation Igneous: .... 5 Diabase .... 6 Granite .... 7 Basalt and other flow rocks Sedimentary: 8 Limestone and dolomite 9...

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appendix 3 - rockmass.net pdf

concern are clearly dealt with, and at the same time. − keeping the number of such parameters to a useful minimum. Thus, the input parameters selected, which are determined numerically in this appendix, are only: − the uniaxial compressive strength of intact rock;. − the joint characteristics given as the joint condition factor;...

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Chapter 4 Engineering Classification of Rock Materials -… pdf

Hardness and unconfined compressive strength of rock. 4–5 materials. Table 4–4. Dry density (unit weight) ...... metamorphic rocks. Sandstone, cemented, unjointed. Limestone, unjointed,crystalline. Tuff. Sandstone, friable. Fractured igneous and metamorphic rocks. Vesicular basalt. Karst limestone. Shale. 103. 102. 10.

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Foundations on Rock. | Builder's Engineer

Basalt is a dark-colored fine grained rock. Both basalt and granite under unweathered conditions serve as a very good foundation base. ... The bearing capacity of a homogeneous, and discontinuous rock mass cannot be less than the unconfined compressive strength of the rock mass around the footing and this can be...

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appendix d - Mass.gov pdf

Class. Description. Consistency in Place. Rock Quality. Designation. (RQD%). Unconfined. Compressive. Strength. (PSF). Standard. Penetration. Resistance. (Blows/Foot). 1a. 1b. Massive bedrock - granite, diorite, gabbro, basalt, gneiss, quartzite, well-cemented conglomerate. Hard rock, minor jointing. Hard sound rock,.

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Crushing strength

In general the compressive load from a dam on to its foundations will not exceed 10 MPa. The strength of a ... Table - Unconfined compressive strength of rocks. Rock type, Strength (MPa). Siltstone, 24-120. Greywacke, 20-30. Shale, 35-110. Sandstone, 40-200. Limestone, 50-240. Dolomite, 50-150. Granite, 90-230. Basalt...

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The effect of mechanical rock properties and brittleness on… pdf

4 Mar 2011 ... Key words: Drilling rate index, uniaxial compressive strength, Brazilian tensile strength, shore scleroscope hardness, point load strength, ..... Alkali granite. Devrek-Yenice, Turkey. 16. Basalt. Hasan Dagi Mountain, Turkey. 17. Andesitic basalt. Zonguldak -Kdz. Eregli, km 26, Turkey. 18. Porfiric andesite.

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Electrical resistivity measurement to predict uniaxial… pdf

brine (NaCl solution) and the uniaxial compressive strength (UCS), Brazilian tensile strength, density and porosity values of the .... Basalt. 2. Yesilburc/Nigde. Andesite. 3. Ulukisla/Nigde. Traki-andesite. 4. Meke/Konya. Volcanic bomb. 5. Uckapili/Nigde. Granite. 6. Ortakoy/Aksaray. Granite (Anadolu grey). 7. Kaman/Kirsehir.

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Rock mass properties - Rocscience pdf

Table 2: Field estimates of uniaxial compressive strength. Grade* Term. Uniaxial. Comp. Strength. (MPa). Point. Load. Index. (MPa). Field estimate of strength. Examples. R6. Extremely. Strong. > 250. >10. Specimen can only be chipped with a geological hammer. Fresh basalt, chert, diabase, gneiss, granite, quartzite. R5.

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This content pdf

roughness of discontinuity, uniaxial compressive strength of joint surface, and type of infilling and water pressure in the joint. Figure 10.1 .... ROCK-requires many blows from geological pick to break intact sample. Chalk, rocksalt. Coal, schist, siltstone. Sandstone, slate, shale. Marble, granite, gneiss dolerite, gabbro, basalt...

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Strength and deformation properties of granite,… pdf

The difference in the unconfined compressive strength between the slow and the rapid rates of loading for the rocks tested varied considerably. The dynamic compressive strength factor for the granite was less than l; for the basalt, 1.35; for the limestone,. 1. 52; and for the tuff, 1. 74. The compressional wave velocity of.

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the effect of stress rate and temperature on the…

(1981) Influence of strain rate on dilatancy and strength of Oshima granite under uniaxial compression. Journal of Geophysical Research: Solid Earth 86:B10, 9299-9311. Online publication date: 20-Sep-2012. T.L. Blanton. (1981) Effect of strain rates from 10-2 to 10 sec-1 in triaxial compression tests on three rocks.

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