# unconfined compressive strength of granite basalt

Enquiry ›### 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...

GET MORE INFORMATION### 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...

GET MORE INFORMATION### 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...

GET MORE INFORMATION### 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.

GET MORE INFORMATION### 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.

GET MORE INFORMATION### 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,.

GET MORE INFORMATION### 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.

GET MORE INFORMATION### 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).

GET MORE INFORMATION### 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).

GET MORE INFORMATION### 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.

GET MORE INFORMATION### 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.

GET MORE INFORMATION### 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.

GET MORE INFORMATION### 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...

GET MORE INFORMATION### 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.

GET MORE INFORMATION### 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...

GET MORE INFORMATION### 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.

GET MORE INFORMATION### 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.

GET MORE INFORMATION### 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),.

GET MORE INFORMATION### 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.

GET MORE INFORMATION### 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.

GET MORE INFORMATION### 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.

GET MORE INFORMATION### 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.

GET MORE INFORMATION### 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...

GET MORE INFORMATION### 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...

GET MORE INFORMATION### 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...

GET MORE INFORMATION### 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...

GET MORE INFORMATION### 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;...

GET MORE INFORMATION### 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.

GET MORE INFORMATION### 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...

GET MORE INFORMATION### 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,.

GET MORE INFORMATION### 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...

GET MORE INFORMATION### 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.

GET MORE INFORMATION### 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.

GET MORE INFORMATION### 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.

GET MORE INFORMATION### 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...

GET MORE INFORMATION### 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.

GET MORE INFORMATION### 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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