Uniaxial compressive strength (UCS) is the most widely used mechanical property parameter for rocks, and uniaxial compression tests are comparably accessible and cost-effective 12, 13,...

uniaxial compressive strength from the results of the point load test. 4. Test Results and Discussion 4.1 Uniaxial Compressive Strength Test Results The mean values of uniaxial compressive strength of the tested rocks are listed in Table 2. The strength values range from a low of 9.16 MPa for Marl to a high of 101.08 MPa for

ization established in the Decision on Principles for the 5.2 Method C, uniaxial compressive strength of rock is used Development of International Standards, Guides and Recom- in many design formulas and is sometimes used as an index mendations issued by the World Trade Organization Technical property to select the appropriate excavation …

Dynamic uniaxial compression tests for the Bukit Timah granite in Singapore were conducted at four loading rates (10 0, 10 1, 10 3 and 10 5 MPa/s). It was found that the …

The compressive strength of 207.5, 204.6 and 203.4 MPa; and tensile strength of 13.86, 13.68 and 13.60 MPa were obtained for A, B and C respectively. Rockwell hardness values obtained are...

The specimens for the uniaxial compression test are 50 mm in diameter and 100 mm in height. Four series of specimens with volumetric cement contents of 0% (untreated), 1%, 2%, 3%, 4%, and 5% in each series are cured to 1 d, 7 d, 14 d, and 28 d, respectively. A duplicate specimen is prepared for each cement content and curing time.

Compressive mechanical properties and strength prediction model of concrete-granite combined body under active confining pressure GAO Huan 1 ... The results show that the uniaxial (triaxial) compressive strength of CGCB is affected by the material size effect and the interface constraint effect, and the failure condition of the combined body ...

What is the uniaxial compressive strength of westerly granite? References would be appreciated. Compressive Strength Granite Rock Mechanics Solid Mechanics Most …

Damage and fracture of rocks is a comprehensive result of strain energy dissipation and release. In order to study the energy evolution mechanism of hard brittle rock masses during failure process, uniaxial compression tests on the granite specimens with a single pre-existing flaw are carried out with digital image correlation method (DIC).

strength reduction in all weathering grades are not so obvious since all specimens show variation of strength reduction from 5 % to 15 %. Then it can be deduce that 50% amplitudes of cyclic loads could reduce uniaxial compressive strength of weathered granite up to 15% average.

STRENGTH PROPERTIES OF ROCKS AND ROCK MASSES 1. INTRODUCTION 2. TESTING OF INTACT ROCK FOR STRENGTH 2.1 Uniaxial Compression 2.2 Point Load Testing 2.3 Uniaxial Tension 2.4 Indirect Tension Tests 2.5 Shear Tests 2.6 Confined Compression Tests (Triaxial Tests) 2.7 Biaxial and Multiaxial Tests 2.8 Other Tests 3. …

This paper examines prediction of uniaxial compressive strength of granitic materials from Turkey by index tests. • For prediction of uniaxial compressive strength, …

The study of dynamic uniaxial compressive strength of granite at strain rate from 10 -4 to 10 0 s -1 is conducted using sliding crack model. It is shown that the theoretical strengths increase with increasing strain rate and agree well with the experimental results.

Uniaxial compressive strength ( ... Granite 154 48 313 71 169 42 250 20 32.7 Granodiorite 160 51 319 2 171 20 118 2 30? Gabbro 228 106 466 5 248 76 306 1 25.8 Norite 229 82 356 8 - - - - 21.7 Olivinestone - - - - 87 113 1307 5 Peridotite 197 55 280 1 …

Mechanical properties are determined as uniaxial compressive strength of 78.8 (MPa), Poisson's ratio of 0.24, and elastic modulus of 17.81 (GPa). Both uniaxial compressive strength and elastic modulus of the weathered granite significantly decrease, compared to unweathered ones. 19 19. J.

STRENGTH PROPERTIES OF ROCKS AND ROCK MASSES 1. INTRODUCTION 2. TESTING OF INTACT ROCK FOR STRENGTH 2.1 Uniaxial Compression 2.2 Point …

27.7.5 Compressive Strength. Uniaxial compressive strength (UCS) is one of the most important mechanical properties of rocks widely used in different engineering …

The average compressive strength and standard deviation were found to be 15,707 psi and 398 psi, respectively. Analysis of the data proves that the compressive strength of marble is not influenced by steel end platen size or thickness. Similarly, low standard deviation and lack of trend occurred for the other three rock types.

Uniaxial Compression In Hong Kong, concrete made with a maximum aggregate size of 10 mm and 20 mm is very ... compressive strength which can be applicable to local concrete covering ... crushed granite aggregates. Therefore, the type of coarse aggregates used in a concrete mix can have a great influence on the modulus of concrete.

The average uniaxial compressive strength (UCS) obtained from the rock samples at ENL quarry is 151.64 MPa and the in-situ block size distribution obtained vary from 1 m2to 3.08 m2. The determination of the fragment size is achieved using Split-Desktop image analysis. The average percentage value of F 50

From the results of the analysis, weathered sample has average uni‐axial compressive strength (UCS) value of 128 MPa while the Un‐weathered indicated a UCS of 166 MPa. …