• ASTM D 1883 : 2016

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    Standard Test Method for California Bearing Ratio (CBR) of Laboratory-Compacted Soils

    Available format(s):  Hardcopy, PDF

    Superseded date:  01-04-2022

    Language(s):  English

    Published date:  03-31-2016

    Publisher:  American Society for Testing and Materials

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    Abstract - (Show below) - (Hide below)

    This test method covers the determination of the California Bearing Ratio (CBR) of pavement subgrade, subbase, and base course materials from laboratory compacted specimens. The test method is primarily intended for, but not limited to, evaluating the strength of materials having maximum particle size less than 3/4 in. (19 mm).

    Scope - (Show below) - (Hide below)

    1.1This test method covers the determination of the California Bearing Ratio (CBR) of pavement subgrade, subbase, and base course materials from laboratory compacted specimens. The test method is primarily intended for, but not limited to, evaluating the strength of materials having maximum particle size less than 3/4in. (19 mm).

    1.2When materials having a maximum particle size greater than 3/4in. (19 mm) are to be tested, this test method provides for modifying the gradation of the material so that the material used for testing all passes the 3/4-in. (19-mm) sieve while the total gravel fraction (material passing the 3-in. (75-mm) sieve and retained on the No. 4 (4.75-mm) sieve) remains the same. While traditionally this method of specimen preparation has been used to avoid the error inherent in testing materials containing large particles in the CBR test apparatus, the modified material may have significantly different strength properties than the original material. However, a large experience database has been developed using this test method for materials for which the gradation has been modified, and satisfactory design methods are in use based on the results of tests using this procedure.

    1.3Past practice has shown that CBR results for those materials having substantial percentages of particles retained on the No. 4 (4.75 mm) sieve are more variable than for finer materials. Consequently, more trials may be required for these materials to establish a reliable CBR.

    1.4This test method provides for the determination of the CBR of a material at optimum water content or a range of water content from a specified compaction test and a specified dry unit weight. The dry unit weight is usually given as a percentage of maximum dry unit weight determined by Test Methods D698 or D1557.

    1.5The client requesting the test may specify the water content or range of water contents and the dry unit weight for which the CBR is desired.

    1.6Unless specified otherwise by the requesting client, or unless it has been shown to have no effect on test results for the material being tested, all specimens shall be soaked prior to penetration.

    1.7For the determination of CBR of field in-place materials, see Test Method D4429.

    1.8Units—The values stated in inch-pound units are to be regarded as standard. The SI units given in parentheses are mathematical conversions, which are provided for information purposes only and are not considered standard. Reporting of test results in units other than inch-pound units shall not be regarded as nonconformance with this test method.

    1.8.1The gravitational system of inch-pound units is used when dealing with inch-pound units. In this system, the pound (lbf) represents a unit of force (weight), while the unit for mass is slugs. The slug unit is not given, unless dynamic (F = ma) calculations are involved.

    1.8.2The slug unit of mass is almost never used in commercial practice; that is, density, balances, etc. Therefore, the standard unit for mass in this standard is either kilogram (kg) or gram (g), or both. Also, the equivalent inch-pound unit (slug) is not given/presented in parentheses.

    1.8.3It is common practice in the engineering/construction profession, in the United States, to concurrently use pounds to represent both a unit of mass (lbm) and of force (lbf). This implicitly combines two separate systems of units; that is, the absolute system and the gravitational system. It is scientifically undesirable to combine the use of two separate sets of inchpound units within a single standard. As stated, this standard includes the gravitational system of inch-pound units and does not use/present the slug unit for mass. However, the use of balances or scales recording pounds of mass (lbm) or recording density in lbm/ft3 shall not be regarded as nonconformance with this standard.

    1.8.4The terms density and unit weight are often used interchangeably. Density is mass per unit volume whereas unit weight is force per unit volume. In this standard, density is given only in SI units. After the density has been determined, the unit weight is calculated in SI or inch-pound units, or both.

    1.9All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026.

    1.9.1The procedures used to specify how data are collected/recorded or 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 the 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 be commensurate with these considerations. It is beyond the scope of this standard to consider significant digits used in analytical methods for engineering design.

    1.10This 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.

    General Product Information - (Show below) - (Hide below)

    Committee D 18
    Document Type Test Method
    Publisher American Society for Testing and Materials
    Status Superseded
    Superseded By
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    ASTM E 2243 : 2013 Standard Guide for Use of Coal Combustion Products (CCPs) for Surface Mine Reclamation: Re-contouring and Highwall Reclamation
    ASTM F 2396 : 2011 Standard Guide for Construction of High Performance Sand-Based Rootzones for Athletic Fields
    ASTM D 5918 : 2013 : EDT 1 Standard Test Methods for Frost Heave and Thaw Weakening Susceptibility of Soils (Withdrawn 2022)
    ASTM D 7762 : 2018 Standard Practice for Design of Stabilization of Soil and Soil-Like Materials with Self-Cementing Fly Ash
    ASTM D 6241 : 2014 Standard Test Method for Static Puncture Strength of Geotextiles and Geotextile-Related Products Using a 50-mm Probe
    ASTM D 5874 : 2016 Standard Test Methods for Determination of the Impact Value (IV) of a Soil
    ASTM E 2277 : 2014 Standard Guide for Design and Construction of Coal Ash Structural Fills
    ASTM D 4792/D4792M : 2013 : R2019 Standard Test Method for Potential Expansion of Aggregates from Hydration Reactions
    ASTM D 8204 : 2018 Standard Practice for Burial and Retrieval of Samples in a Test Pad to Evaluate Installation Effects on Geosynthetic Clay Liners
    ASTM D 7765 : 2018 : REV A Standard Practice for Use of Foundry Sand in Structural Fill and Embankments
    ASTM D 653 : 2014 Standard Terminology Relating to Soil, Rock, and Contained Fluids
    ASTM E 2278 : 2013 Standard Guide for Use of Coal Combustion Products (CCPs) for Surface Mine Reclamation: Revegetation and Mitigation of Acid Mine Drainage
    ASTM E 2277 : 2014(R2019) Standard Guide for Design and Construction of Coal Ash Structural Fills
    ASTM E 2243 : 2013 : R2019 Standard Guide for Use of Coal Combustion Products (CCPs) for Surface Mine Reclamation: Re-contouring and Highwall Reclamation
    ASTM D 7762 : 2018 : EDT 1 Standard Practice for Design of Stabilization of Soil and Soil-Like Materials with Self-Cementing Fly Ash
    ASTM F 2396 : 2011 : R2019 Standard Guide for Construction of High Performance Sand-Based Rootzones for Athletic Fields
    ASTM E 2278 : 2013 : R2019 Standard Guide for Use of Coal Combustion Products (CCPs) for Surface Mine Reclamation: Revegetation and Mitigation of Acid Mine Drainage
    ASTM D 8378/D8378M : 2021 Standard Test Method for Potential Expansion of Steel Slag from Hydration Reactions by Autoclave
    ASTM F 2747 : 2019 Standard Guide for Construction of Sand-based Rootzones for Golf Putting Greens and Tees

    Standards Referencing This Book - (Show below) - (Hide below)

    ASTM D 2216 : 2005 Standard Test Methods for Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass
    ASTM D 2168 : 2002 Standard Test Methods for Calibration of Laboratory Mechanical-Rammer Soil Compactors
    ASTM D 2168 : 2010 Standard Test Methods for Calibration of Laboratory Mechanical-Rammer Soil Compactors
    ASTM D 2487 : 2017 : EDT 1 Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System)
    ASTM D 4753 : 2002 Standard Guide for Evaluating, Selecting, and Specifying Balances and Standard Masses for Use in Soil, Rock, and Construction Materials Testing
    ASTM D 1557 : 2007 Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbf/ft3 (2,700 kN-m/m3))
    ASTM D 653 : 2007 Standard Terminology Relating to Soil, Rock, and Contained Fluids
    ASTM D 2168 : 1990 : R1996 : EDT 1 Standard Test Methods for Calibration of Laboratory Mechanical-Rammer Soil Compactors
    ASTM D 4753 : 2015 Standard Guide for Evaluating, Selecting, and Specifying Balances and Standard Masses for Use in Soil, Rock, and Construction Materials Testing
    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 4318 : 2005 Standard Test Methods for Liquid Limit, Plastic Limit, and Plasticity Index of Soils
    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 D 2488 : 1969 : R1975 Recommended Practice for Description Of Soils (Visual-Manual Procedure)
    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 D 2488 : 2017 Standard Practice for Description and Identification of Soils (Visual-Manual Procedures)
    ASTM D 4318 : 2010 Standard Test Methods for Liquid Limit, Plastic Limit, and Plasticity Index of Soils
    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 4318 : 2000 Standard Test Methods for Liquid Limit, Plastic Limit, and Plasticity Index of Soils
    ASTM D 2168 : 2002 : REV A Standard Test Methods for Calibration of Laboratory Mechanical-Rammer Soil Compactors
    ASTM D 1557 : 2012 : R2021 Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbf/ft3 (2,700 kN-m/m3))
    ASTM D 4753 : 1995 Standard Specification for Evaluating, Selecting, and Specifying Balances and Scales for Use in Soil, Rock, and Construction Materials Testing
    ASTM D 1557 : 2012 Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbf/ft3 (2,700 kN-m/m3))
    ASTM D 1557 : 2012 : EDT 1 Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbf/ft3 (2,700 kN-m/m3))
    ASTM D 653 : 2020 : EDT 1 Standard Terminology Relating to Soil, Rock, and Contained Fluids
    ASTM D 4429 : 1993 Standard Test Method for CBR (California Bearing Ratio) of Soils in Place (Withdrawn 2002)
    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 2488 : 2009 Standard Practice for Description and Identification of Soils (Visual-Manual Procedure)
    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 4318 : 2017 : EDT 1 Standard Test Methods for Liquid Limit, Plastic Limit, and Plasticity Index of Soils
    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 1557 : 2002 Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbf/ft3(2,700 kN-m/m3))
    ASTM D 4753 : 2007 Standard Guide for Evaluating, Selecting, and Specifying Balances and Standard Masses for Use in Soil, Rock, and Construction Materials Testing
    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 2488 : 2000 Standard Practice for Description and Identification of Soils (Visual-Manual Procedure)
    ASTM D 4429 : 2004 Standard Test Method for CBR (California Bearing Ratio) of Soils in Place
    ASTM D 2487 : 2006 : EDT 1 Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System)
    ASTM D 653 : 2021 Standard Terminology Relating to Soil, Rock, and Contained Fluids
    ASTM D 1557 : 2000 Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbf/ft3(2,700 kN-m/m3))
    ASTM D 653 : 2021 : REV B Standard Terminology Relating to Soil, Rock, and Contained Fluids
    ASTM D 4318 : 2010 : EDT 1 Standard Test Methods for Liquid Limit, Plastic Limit, and Plasticity Index of Soils
    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 4318 : 2017 Standard Test Methods for Liquid Limit, Plastic Limit, and Plasticity Index of Soils
    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 2487 : 2010 Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System)
    ASTM D 2216 : 1998 Standard Test Method for Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass
    ASTM D 2487 : 2000 Standard Classification of Soils for Engineering Purposes (Unified Soil Classification System)
    ASTM D 2168 : 2010 : R2018 Standard Practices for Calibration of Laboratory Mechanical-Rammer Soil Compactors
    ASTM D 2487 : 2006 Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System)
    ASTM D 6026 : 2021 Standard Practice for Using Significant Digits and Data Records in Geotechnical Data
    ASTM D 2216 : 1971 Standard Method of Laboratory Determination Of Moisture Content Of Soil
    ASTM D 4429 : 2009 : REV A Standard Test Method for CBR (California Bearing Ratio) of Soils in Place (Withdrawn 2018)
    ASTM D 6026 : 2001 Standard Practice for Using Significant Digits in Geotechnical Data
    ASTM D 2487 : 2011 Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System)
    ASTM D 1557 : 2009 Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbf/ft3 (2,700 kN-m/m3))
    ASTM D 2487 : 2017 Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System)
    ASTM D 2488 : 2009 : REV A Standard Practice for Description and Identification of Soils (Visual-Manual Procedure)
    ASTM D 2488 : 2017 : EDT 1 Standard Practice for Description and Identification of Soils (Visual-Manual Procedures)
    ASTM D 2488 : 2006 Standard Practice for Description and Identification of Soils (Visual-Manual Procedure)
    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
    ASTM D 4429 : 2009 Standard Test Method for CBR (California Bearing Ratio) of Soils in Place
    ASTM D 2487 : 1969 : R1975 Standard Test Method for Classification Of Soils For Engineering Purposes
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