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ASTM D 5731 : 2016

Current
Current

The latest, up-to-date edition.

Standard Test Method for Determination of the Point Load Strength Index of Rock and Application to Rock Strength Classifications
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

12-01-2016

1.1This 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.

1.2Specimens 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.

1.3This test method can be performed in either the field or laboratory. The test is typically used in the field because the testing machine is portable, little or minimal specimen preparation is required, and specimens can be tested within a short time frame of being collected.

1.4This test method applies to medium strength rock (compressive strength over 15 MPa).

1.5This test method does not cover which type of specimen should be tested or whether anisotropic factors should be considered. The specifics of the point load test program need to be developed prior to testing and possibly even before sampling. Such specifics would be dependent on the intended use of the data, as well as possible budgetary constraints and possible other factors, which are outside the scope of this test method.

1.6All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026.

1.6.1The procedures used to specify how data are collected/recorded and calculated in this standard are regarded as the industry standard. In addition, they are representative of the significant digits that generally should be retained. The procedures used do not consider material variation, purpose for obtaining data, special purpose studies, or any considerations for the user’s objectives; and it is common practice to increase or reduce significant digits of reported data to commensurate with these considerations. It is beyond the scope of these test methods to consider significant digits used in analysis methods for engineering design

1.7The values stated in the SI units are to be regarded as standard.

1.8This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Committee
D 18
DocumentType
Test Method
Pages
11
PublisherName
American Society for Testing and Materials
Status
Current
Supersedes

ASTM D 5878 : 2019 Standard Guides for Using Rock-Mass Classification Systems for Engineering Purposes
ASTM D 420 : 2018 Standard Guide for Site Characterization for Engineering Design and Construction Purposes

ASTM D 2216 : 2005 Standard Test Methods for Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass
ASTM D 5079 : 2002 Standard Practices for Preserving and Transporting Rock Core Samples
ASTM D 653 : 2007 Standard Terminology Relating to Soil, Rock, and Contained Fluids
ASTM D 2216 : 2010 Standard Test Methods for Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass
ASTM D 3740 : 2012 Standard Practice for Minimum Requirements for Agencies Engaged in Testing and/or Inspection of Soil and Rock as Used in Engineering Design and Construction
ASTM D 3740 : 2023 Standard Practice for Minimum Requirements for Agencies Engaged in Testing and/or Inspection of Soil and Rock as Used in Engineering Design and Construction
ASTM D 3740 : 2019 Standard Practice for Minimum Requirements for Agencies Engaged in Testing and/or Inspection of Soil and Rock as Used in Engineering Design and Construction
ASTM D 3740 : 2004 : REV A : EDT 1 Standard Practice for Minimum Requirements for Agencies Engaged in the Testing and/or Inspection of Soil and Rock as Used in Engineering Design and Construction
ASTM E 18 : 2022 Standard Test Methods for Rockwell Hardness of Metallic Materials
ASTM D 3740 : 2008 Standard Practice for Minimum Requirements for Agencies Engaged in Testing and/or Inspection of Soil and Rock as Used in Engineering Design and Construction
ASTM D 6026 : 2013 Standard Practice for Using Significant Digits in Geotechnical Data
ASTM D 6026 : 2006 Standard Practice for Using Significant Digits in Geotechnical Data
ASTM E 18 : 2020 Standard Test Methods for Rockwell Hardness of Metallic Materials
ASTM D 7012 : 2010 Standard Test Method for Compressive Strength and Elastic Moduli of Intact Rock Core Specimens under Varying States of Stress and Temperatures
ASTM D 3740 : 1999 : REV C Standard Practice for Minimum Requirements for Agencies Engaged in the Testing and/or Inspection of Soil and Rock as Used in Engineering Design and Construction
ASTM D 7012 : 2014 Standard Test Methods for Compressive Strength and Elastic Moduli of Intact Rock Core Specimens under Varying States of Stress and Temperatures
ASTM E 122 : 2017 : R2022 Standard Practice for Calculating Sample Size to Estimate, With Specified Precision, the Average for a Characteristic of a Lot or Process
ASTM E 122 : 2017 Standard Practice for Calculating Sample Size to Estimate, With Specified Precision, the Average for a Characteristic of a Lot or Process
ASTM D 7012 : 2007 : EDT 1 Standard Test Method for Compressive Strength and Elastic Moduli of Intact Rock Core Specimens under Varying States of Stress and Temperatures
ASTM D 7012 : 2004 Standard Test Method for Compressive Strength and Elastic Moduli of Intact Rock Core Specimens under Varying States of Stress and Temperatures
ASTM D 653 : 2022 Standard Terminology Relating to Soil, Rock, and Contained Fluids
ASTM D 7012 : 2013 Standard Test Methods for Compressive Strength and Elastic Moduli of Intact Rock Core Specimens under Varying States of Stress and Temperatures
ASTM D 653 : 2020 : EDT 1 Standard Terminology Relating to Soil, Rock, and Contained Fluids
ASTM D 5079 : 1990 : R1996 Standard Practices for Preserving and Transporting Rock Core Samples
ASTM D 6026 : 1999 Standard Practice for Using Significant Digits in Geotechnical Data
ASTM D 3740 : 2011 Standard Practice for Minimum Requirements for Agencies Engaged in Testing and/or Inspection of Soil and Rock as Used in Engineering Design and Construction
ASTM D 6026 : 2001 : EDT 1 Standard Practice for Using Significant Digits in Geotechnical Data
ASTM D 3740 : 2010 Standard Practice for Minimum Requirements for Agencies Engaged in Testing and/or Inspection of Soil and Rock as Used in Engineering Design and Construction
ASTM D 653 : 2021 : REV A Standard Terminology Relating to Soil, Rock, and Contained Fluids
ASTM D 2216 : 2019 Standard Test Methods for Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass
ASTM D 5079 : 2002 : R2006 Standard Practices for Preserving and Transporting Rock Core Samples
ASTM D 6026 : 1996 Standard Practice for Using Significant Digits in Geotechnical Data
ASTM D 3740 : 2004 : REV A Standard Practice for Minimum Requirements for Agencies Engaged in the Testing and/or Inspection of Soil and Rock as Used in Engineering Design and Construction
ASTM D 3740 : 2001 Standard Practice for Minimum Requirements for Agencies Engaged in the Testing and/or Inspection of Soil and Rock as Used in Engineering Design and Construction
ASTM D 653 : 2021 Standard Terminology Relating to Soil, Rock, and Contained Fluids
ASTM D 653 : 2021 : REV B Standard Terminology Relating to Soil, Rock, and Contained Fluids
ASTM E 18 : 2019 Standard Test Methods for Rockwell Hardness of Metallic Materials
ASTM D 7012 : 2023 Standard Test Methods for Compressive Strength and Elastic Moduli of Intact Rock Core Specimens under Varying States of Stress and Temperatures
ASTM D 6026 : 1996 : EDT 1 Standard Practice for Using Significant Digits in Geotechnical Data
ASTM D 3740 : 2012 : REV A Standard Practice for Minimum Requirements for Agencies Engaged in Testing and/or Inspection of Soil and Rock as Used in Engineering Design and Construction
ASTM D 3740 : 2003 Standard Practice for Minimum Requirements for Agencies Engaged in the Testing and/or Inspection of Soil and Rock as Used in Engineering Design and Construction
ASTM D 2216 : 1998 Standard Test Method for Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass
ASTM D 5079 : 2008 Standard Practices for Preserving and Transporting Rock Core Samples (Withdrawn 2017)
ASTM D 6026 : 2021 Standard Practice for Using Significant Digits and Data Records in Geotechnical Data
ASTM D 7012 : 2014 : EDT 1 Standard Test Methods for Compressive Strength and Elastic Moduli of Intact Rock Core Specimens under Varying States of Stress and Temperatures
ASTM D 2216 : 1971 Standard Method of Laboratory Determination Of Moisture Content Of Soil
ASTM D 6026 : 2001 Standard Practice for Using Significant Digits in Geotechnical Data
ASTM D 3740 : 2004 Standard Practice for Minimum Requirements for Agencies Engaged in the Testing and/or Inspection of Soil and Rock as Used in Engineering Design and Construction

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