astm designation of point load index test
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Standard Test Method for Determination of the Point Load ...
This test method covers the guidelines, requirements, and procedures for determining the point load strength index of rock. This is an index test and is intended to be used to classify rock strength. Specimens in the form of rock cores, blocks, or irregular lumps with a test diameter from 30 to 85 mm can be tested by this test method.
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Rock Testing Lab Services, Rock Engineering | GeoTesting ...
Standard Test Method for Determination of the Point Load Strength Index of Rock and Application to Rock Strength Classifications ASTM D5731 Point Load Strength Index, Estimated Uniaxial Compressive Strength, Strength Anisotropy Index
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Standard Test Method for Measurement of Extreme-Pressure ...
The load wear index is the average of the corrected loads determined for the ten applied loads immediately preceding the weld point. 3.1.10 weld point, n—the lowest applied load at which sliding surfaces seize and then weld. 3.1.10.1 Discussion—Under the conditions of this test, the lowest applied load in kilograms-force (or Newtons) at which
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astmd 5731 - 95 _rdu3mzetukve | Anisotropy | Strength Of ...
The test results should not be used for design or analytical purposes.1 General—A point load tester (see Fig. and Geomechanical Abstr. and the point load strength anisotropy index ( Ia(50)) that is the ratio of point load strengths on different axes that result in the greatest and least values.
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Designation: D 2783 – 03 An American National Standard
stationary balls for ten runs prior to welding. The load-wear index is the average of the sum of the corrected loads determined for the ten applied loads immediately preceding the weld pair. 3.1.10 weld point—under the conditions of this test, the lowest applied load in kilograms at which the rotating ball
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Point Load Test
The Point Load Test, also known as the Point Load Strength Index Test, is used to calculate the rock strength index of a rock specimen. From the rock strength index, other rock parameters, such as the uniaxial compressive strength, can be estimated.This test is very economical due to the simplicity of the apparatus and the minimal amount of required materials to execute.
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USING THE POINT LOAD TEST TO DETERMINE THE UNIAXIAL ...
calculation of the point load strength index. There are three basic types of point load tests: axial, diametral, and block or lump. The axial and diametral tests are conducted on rock core samples. In the axial test, the core is loaded parallel to the longitudinal axis of the core, and this test is most comparable to a UCS test. The point load ...
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Standard Test Method for Determination of the Point Load ...
Designation: D 5731 – 07 Standard Test Method for Determination of the Point Load Strength Index of Rock and Application to Rock Strength Classifications1 This standard is issued under the fixed designation D 5731; the number immediately following the designation indicates the year of
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STANDARD OPERATING PROCEDURE No. 77 POINT LOAD …
Load Test Method - Suggested Method for Determining Point Load Strength (to replace original document published in 1972) (Appendix I) and provides technical guidance and procedures that will be employed measuring the Point Load Strength Index test for the
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Laboratory Testing and Interpretation of Rock Properties
Test Category Name of Test Test Designation AASHTO ASTM Point Load Strength Method for determining point load index (Is)-D 5731* Compressive Strength Compressive strength (qu = F u) of core in unconfined compression (uniaxial compression test) - D 2938* Triaxial compressive strength without pore pressure T 226 D 2664 Creep Tests
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Standard Test Method for Determination of the Point Load ...
1.1 This test method covers the guidelines, requirements, and procedures for determining the point load strength index of rock. This is an index test and is intended to be used to classify rock strength. 1.2 Specimens in the form of rock cores, blocks, or irregular lumps with a test diameter from ...
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ASTM-D5731 | Standard Test Method for Determination of the ...
1.1 This test method covers the guidelines, requirements, and procedures for determining the point load strength index of rock. This is an index test and is intended to be used to classify rock strength. 1.2 Specimens in the form of rock cores, blocks, or irregular lumps with a test diameter from 30 to 85 mm can be tested by this test method.
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Standard Test Method for Determination of the Point Load ...
5.3 This test method is performed to determine the point load strength index of rock specimens and, if required, the point load strength anisotropy index. 5.4 Rock specimens in the form of either core (the diametral and axial tests), cut blocks (the block test), or irregular lumps (the irregular lump test) are tested by application of ...
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ASTM D5731 - 08.pdf_stdlibrary.com
Designation D5731 − 08Standard Test Method forDetermination of the Point Load Strength Index of Rock andApplication to Rock Strength Classifications1This standard is issued under the fixed designation,stdlibrary.com
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Correlations between direct and indirect strength test methods
The review of index testing methods with detailed observations on the application of Schmidt rebound hardness and point load strength index in mechanical properties estimations of intact rock ...
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Correlation between the point load index (Is(50)) and the ...
3.2 POINT LOAD TEST (PLT) The Point Load Test is also known as the Franklin test. The first reference is by Reichmuth, D. (1968) [10], who proposed obtaining the resistance to a point load and a determination of the unconfined compression strength via correlation, regardless of whether they are irregular, regular, or cylindrical rock controls [11].
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The point-load test in geotechnical practice - ScienceDirect
The point-load test is evaluated for practical applications in engineering geology. The three variations of the test, i.e., diametral, axial and irregular lump are assessed and it is found that the diametral point-load test is most convenient and reliable in use.
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Drillability and Strength Characteristics of Selected ...
Point Load Strength Index . Five rock samples were prepared for each rock type to the standard suggested by the International Society of Rock Mechanics (ISRM 1981) and the American Society for Testing and Materials International (ASTM 2001) D5731. The point load index was determined using Eqs. (2)-(3) for blocks as presented in Table 1: IS = F/(W.
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Geotechnical Laboratory - Caltrans
ASTM Designation: D 5731, “Standard Test Method for Determination of the Point Load Strength Index of Rock” Summary of Test Method This index test is performed by subjecting a rock specimen to an increasingly concentrated load until failure occurs by splitting the specimen.
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Standard Test Method for Determination of the Point Load ...
ASTM D5731 Material. Rock. Test Property. Point Load Strength Index, Estimated Uniaxial Compressive Strength, Strength Anisotropy Index. Description of Test. Rock specimens are subjected to an increasingly concentrated load until failure occurs by splitting the specimen. The concentrated load is applied through coaxial, truncated conical platens.
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Plate Load Test Standard ASTM D1196 D1196M-12 - Scribd
Correction should be made for the zero deflection point.03 mm [0. the bearing plate.1.1 Carefully center a bearing plate of the selected diameter under the jack assembly.] from the circumference.001 in. Calculation and Plotting of Load-Deflection Relationships 7.]/min for 3 min consecutively occurs. 7.1 The precision and bias of this test ...
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ASTM D5731 - Standard Test Method for Determination of the ...
This test method covers the guidelines, requirements, and procedures for determining the point load strength index of rock. This is an index test and is intended to be used to classify rock strength. Specimens in the form of rock cores, blocks, or irregular lumps with a test diameter from 30 to 85 mm can be tested by this test method.
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Standard Test Method for Repetitive Static Plate Load ...
Designation: D 1195 – 93 (Reapproved 1997) An American National Standard Standard Test Method for Repetitive Static Plate Load Tests of Soils and Flexible Pavement Components, for Use in Evaluation and Design of Airport and Highway Pavements1
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Point-Load Test | Mining | SGS
The Point-load Test measures the Point Load Strength Index (Is(50)) of rock specimens, and their Strength Anisotropy Index (Ia(50)), which is the ratio of Point Load Strengths in directions that give the greatest and least values.
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Correlating uniaxial compressive strength ... - SpringerLink
ASTM, 1992: Standard Test Method for Unconfined Compressive Strength of Intact Rock Core Specimens, American Society for Testing and Materials, Annual Book of ASTM Standards, ASTM Designation D 2938-86, vol. 04.08, pp. 390–391.
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ASTM-D5731 | Standard Test Method for Determination of the ...
1.1 This test method covers the guidelines, requirements, and procedures for determining the point load strength index of rock. This is an index test and is intended to be used to classify rock strength.
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AMERICAN SOCIETY FOR TESTING AND MATERIALS Reprinted …
5.2 The point load strength test is used as an index test for strength classification of rock materials. The test results should not be used for design or analytical purposes. 5.3 This test method is performed to determine the point load strength index (Is(50)) of rock specimens, and the point
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Standard Test Method for Flexural Strength of Concrete ...
applied load at all times during the test, and the ratio of the horizontal distance between the point of load application and nearest reaction to the depth of the beam shall be 1.5 6 2%. 4.2.3 The load-applying and support blocks shall not be more than 21⁄2 in. (64 mm) high, measured from the center or
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ASTM D5731-16_stdlibrary.com
Designation: D5731 − 16Standard Test Method forDetermination of the Point Load Strength Index of Rock andApplication to Rock Strength Classifications1This standard is issued under the fixed designation D5731; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision.
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Conversion of Point Load Test Results to Conventional ...
American Standard Test Methods have published a procedure for point load tests P = failure load, N, (ASTM D5731-08) in which three major type of De = equivalent core diameter (see Fig. 1), mm, point load tests are identified: diametral, axial and is given by: and block or lumb.
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