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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
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ratio of point load strengths values. 3.2.3 size-corrected point load strength index, n—I s(D), the original point load strength index value multiplied by a factor to normalize the value that would have been obtained with diametral test of diameter (D). 3.2.4 (I s), an
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Introduction. Point Load (PL) is a test that aims at characterizing rock materials in terms of strength. It is an index test, meaning that it can be performed relatively quickly and without the necessity of sophisticated
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:Point Load Strength IndexPoint Load Test MethodRock Specimens5.3 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 concentrated load
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:Point Load Strength IndexPoint Load Test Astm MethodD 5731 – 07 indices on different axes that result in the greatest and least ratio of point load strengths values. 3.2.3 size-corrected point load strength index—Is (D), the original point load strength index value
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· The point load (PL) test is generally used for estimation of uniaxial compressive strength This test method can be performed either in the field or laboratory (ASTM D5731-08, 2008). Details of the PL test program should be determined before applying the test
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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
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:Point Load Strength IndexPoint Load Test MethodASTM D5731-16. December 1, 2016. Standard Test Method for Determination of the Point Load Strength Index of Rock and Application to Rock Strength Classifications. 1.1 This
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· Revision of D5731-16 Standard Test Method for Determination of the Point Load Strength Index of Rock and Application to Rock Strength Classifications Rationale This standard has a 2016 date and is due for a review for ballot. Details Developed by D18.12
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This is an index test and is intended to be used to classify and characterize rock. 1.2 This test method applies to hard rock (compressive strength over 15 MPa (2200 psi)). 1.3 The values stated in the SI units are to be regarded as standard. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use.
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This test method can be performed in the field or laboratory because the testing machine is portable. This is an index test and is intended to be used to classify and characterize rock.1.2 This test method applies to hard rock (compressive strength over 15 MPa (2200 psi)).1.3 All observed and calculated values shall conform to the guidelines
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:Point Load Test of Rock ProcedurePoint Load Strength Index FormulaDetermination of the Point Load Strength Index of Rock and Application to Rock Strength Classifications 1 This standard is issued under the fixed designation D5731; the
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Full Description. 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
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time and cost of compressive strength tests. 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 s(50)) of
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:Point Load Strength IndexPoint Load Test Method · Determination of the Point Load Strength Index of Rock and Application to Rock Strength Classifications1. This standard is issued under the fixed designation
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:Point Load Strength IndexRock SpecimensPoint Load Test Astm MethodStandard Test Method for Determination of the Point Load Strength Index of Rock and Application to Rock Strength Classifications. 1.1 This test method covers the guidelines, requirements, and procedures for
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Citation preview Designation: D5731 − 08 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 D5731; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of
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:Point Load Strength IndexPoint Load Test MethodRock Specimens · The point load strength Index (PLSI) test is intended as an index test for the strength classification of rock material (Broch and Franklin, 1972). Irregular lumps
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: 31.1 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
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· ratio of point load strengths values. 3.2.3 size-corrected point load strength index, nÑI s(D), the original point load strength index value multiplied by a factor to normalize the value that would have been obtained with diametral test of diameter (
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ASTM D5731-05 Standard Test Method for Determination of the Point Load Strength Index of Rock 1.1 This test method covers the guidelines, requirements, and procedures for determining the point load strength index of rock. Specimens in the form of rock cores
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Jan 04, 2017 ASTM D573116 Standard Test Method for Determination of the Point Load Strength Index of Rock and Application to Rock Strength Classifications The specifics of Dec 31, 2010 11 This test method covers the guidelines, requirements, and
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ASTM D5731-16-Standard Test Method for Determination of the Point Load Strength Index of Rock and Application to Rock Strength Classifications, 1.5 This test method does not cover which type of specimen should be tested or
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1 This test method is under the jurisdiction of ASTM Committee D-18 on Soil and Rock and is the direct responsibility of Subcommittee D18 on Rock Mechanics. Current edition approved May 15, 1995. Published July 1995. 2 Annual Book of ASTM Standards,
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1. Scope * 1.1 This test method covers the guidelines, requirements, and procedures for determining the point load strength index of rock. Specimens in the form of rock cores,
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3 Definitions of Terms Specific to This Standard: 3.2 diameter, n—D, for point load tests, the measured dimension of the specimen between the opposing conical test platens when placed in the test machine 3.2 point load strength anisotropy index, n—Ia(D), the
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This course 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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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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· Scope1.1 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
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