• ASTM D 1557 : 2007

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbf/ft3 (2,700 kN-m/m3))

    Available format(s):  Hardcopy, PDF

    Superseded date:  11-11-2014

    Language(s):  English

    Published date:  11-01-2007

    Publisher:  American Society for Testing and Materials

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    Scope - (Show below) - (Hide below)

    1.1 These test methods cover laboratory compaction methods used to determine the relationship between molding water content and dry unit weight of soils (compaction curve) compacted in a 4- or 6-in. (101.6- or 152.4-mm) diameter mold with a 10.00-lbf. (44.48-N) rammer dropped from a height of 18.00 in. (457.2 mm) producing a compactive effort of 56 000 ft-lbf/ft3 (2700 kN-m/m3).

    Note 1

    The equipment and procedures are the same as proposed by the U.S. Corps of Engineers in 1945. The modified effort test (see ) is sometimes referred to as the Modified Proctor Compaction Test.

    1.1.1 Soils and soil-aggregate mixtures are to be regarded as natural occurring fine- or coarse-grained soils, or composites or mixtures of natural soils, or mixtures of natural and processed soils or aggregates such as gravel or crushed rock. Hereafter referred to as either soil or material.

    1.2 These test methods apply only to soils (materials) that have 30 % or less by mass of their particles retained on the 3/4-in. (19.0-mm) sieve and have not been previously compacted in the laboratory; that is, do not reuse compacted soil.

    1.2.1 For relationships between unit weights and molding water contents of soils with 30 % or less by weight of material retained on the 3/4-in. (19.0-mm) sieve to unit weights and molding water contents of the fraction passing the 3/4-in. (19.0-mm) sieve, see Practice D 4718.

    1.3 Three alternative methods are provided. The method used shall be as indicated in the specification for the material being tested. If no method is specified, the choice should be based on the material gradation.

    1.3.1 Method AMold4-in. (101.6-mm) diameter.

    Material

    Passing No. 4 (4.75-mm) sieve.

    Layers

    Five.

    Blows per layer

    25.

    Usage

    May be used if 25 % or less by mass of the material is retained on the No. 4 (4.75-mm) sieve. However, if 5 to 25 % by mass of the material is retained on the No. 4 (4.75-mm) sieve, Method A can be used but oversize corrections will be required (See ) and there are no advantages to using Method A in this case.

    Other Use

    If this gradation requirement cannot be met, then Methods B or C may be used.

    1.3.2 Method BMold4-in. (101.6-mm) diameter.

    Material

    Passing 3/8-in. (9.5-mm) sieve.

    Layers

    Five.

    Blows per layer

    25.

    Usage

    May be used if 25 % or less by mass of the material is retained on the 3/8-in. (9.5-mm) sieve. However, if 5 to 25 % of the material is retained on the 3/8-in. (9.5-mm) sieve, Method B can be used but oversize corrections will be required (See ). In this case, the only advantages to using Method B rather than Method C are that a smaller amount of sample is needed and the smaller mold is easier to use.

    Other Usage

    If this gradation requirement cannot be met, then Method C may be used.

    1.3.3 Method CMold6-in. (152.4-mm) diameter.

    Material

    Passing 3/4-in. (19.0-mm) sieve.

    Layers

    Five.

    Blows per layer

    56.

    Usage

    May be used if 30 % or less (see ) by mass of the material is retained on the 3/4-in. (19.0-mm) sieve.

    1.3.4 The 6-in. (152.4-mm) diameter mold shall not be used with Method A or B.

    Note 2

    Results have been found to vary slightly when a material is tested at the same compactive effort in different size molds, with the smaller mold size typically yielding larger values of unit weight and density ().

    1.4 If the test specimen contains more than 5 % by mass of oversize fraction (coarse fraction) and the material will not be included in the test, corrections must be made to the unit weight and molding water content of the test specimen or to the appropriate field in-place unit weight (or density) test specimen using Practice D 4718.

    1.5 This test method will generally produce a well-defined maximum dry unit weight for non-free draining soils. If this test method is used for free-draining soils the maximum unit weight may not be well defined, and can be less than obtained using Test Methods D 4253.

    1.6 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D 6026, unless superseded by these test methods.

    1.6.1 For purposes of comparing measured or calculated value(s) with specified limits, the measured or calculated value(s) shall be rounded to the nearest decimal or significant digits in the specified limits.

    1.6.2 The 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 users objectives; 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 these test methods to consider significant digits used in analytical methods for engineering design.

    1.7 The values in inch-pound units are to be regarded as the standard. The values stated in SI units are provided for information only, except for units of mass. The units for mass are given in SI units only, g or kg.

    1.7.1 It is common practice in the engineering profession to concurrently use pounds to represent both a unit of mass (lbm) and a 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 inch-pound units within a single standard. These test methods have been written using the gravitational system of units when dealing with the inch-pound system. In this system, the pound (lbf) represents a unit of force (weight). However, the use of balances or scales recording pounds of mass (lbm) or the recording of density in lbm/ft 3 shall not be regarded as a nonconformance with this standard.

    This 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)

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    ASTM D 7100 : 2011 Standard Test Method for Hydraulic Conductivity Compatibility Testing of Soils with Aqueous Solutions
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    ASTM D 2937 : 2017 : EDT 2 Standard Test Method for Density of Soil in Place by the Drive-Cylinder Method
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    ASTM D 5321/D5321M : 2019 Standard Test Method for Determining the Shear Strength of Soil-Geosynthetic and Geosynthetic-Geosynthetic Interfaces by Direct Shear
    ASTM D 7380 : 2015 Standard Test Method for Soil Compaction Determination at Shallow Depths Using 5-lb (2.3 kg) Dynamic Cone Penetrometer
    ASTM C 1245/C1245M : 2012 Standard Test Method for Determining Relative Bond Strength Between Hardened Roller Compacted Concrete Lifts (Point Load Test) (Withdrawn 2019)
    ASTM E 2277 : 2014 Standard Guide for Design and Construction of Coal Ash Structural Fills
    ASTM B 789/B789M : 2016 Standard Practice for Installing Corrugated Aluminum Structural Plate Pipe for Culverts and Sewers
    ASTM D 3080/D3080M : 2011 Standard Test Method for Direct Shear Test of Soils Under Consolidated Drained Conditions (Withdrawn 2020)
    ASTM D 4718/D4718M : 2015 Standard Practice for Correction of Unit Weight and Water Content for Soils Containing Oversize Particles
    ASTM D 6938 : 2017 : REV A Standard Test Methods for In-Place Density and Water Content of Soil and Soil-Aggregate by Nuclear Methods (Shallow Depth)
    ASTM D 7830/D7830M : 2014 Standard Test Method for In-Place Density (Unit Weight) and Water Content of Soil Using an Electromagnetic Soil Density Gauge
    ASTM D 5856 : 2015 Standard Test Method for Measurement of Hydraulic Conductivity of Porous Material Using a Rigid-Wall, Compaction-Mold Permeameter
    ASTM D 5080 : 2017 Standard Test Method for Rapid Determination of Percent Compaction
    ASTM D 6270 : 2017 Standard Practice for Use of Scrap Tires in Civil Engineering Applications
    ASTM D 6243/D6243M : 2016 Standard Test Method for Determining the Internal and Interface Shear Strength of Geosynthetic Clay Liner by the Direct Shear Method
    ASTM D 6758 : 2018 Standard Test Method for Measuring Stiffness and Apparent Modulus of Soil and Soil-Aggregate In-Place by Electro-Mechanical Method
    ASTM C 593 : 2006 : R2011 Standard Specification for Fly Ash and Other Pozzolans for Use With Lime for Soil Stabilization
    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 C 1479 : 2016 Standard Practice for Installation of Precast Concrete Sewer, Storm Drain, and Culvert Pipe Using Standard Installations
    ASTM D 7243 : 2011 Standard Guide for Measuring the Saturated Hydraulic Conductivity of Paper Industry Sludges
    ASTM D 5030/D5030M : 2013 : REV A Standard Test Methods for Density of Soil and Rock in Place by the Water Replacement Method in a Test Pit
    ASTM E 1266 : 2012 Standard Practice for Processing Mixtures of Lime, Fly Ash, and Heavy Metal Wastes in Structural Fills and Other Construction Applications
    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 D 1883 : 2016 Standard Test Method for California Bearing Ratio (CBR) of Laboratory-Compacted Soils
    ASTM D 4914/D4914M : 2016 Standard Test Methods for Density of Soil and Rock in Place by the Sand Replacement Method in a Test Pit
    ASTM E 2243 : 2013 Standard Guide for Use of Coal Combustion Products (CCPs) for Surface Mine Reclamation: Re-contouring and Highwall Reclamation
    ASTM D 653 : 2014 Standard Terminology Relating to Soil, Rock, and Contained Fluids
    ASTM D 2167 : 2015 Standard Test Method for Density and Unit Weight of Soil in Place by the Rubber Balloon Method
    ASTM D 8167/D8167M : 2018 : REV A Standard Test Method for In-Place Bulk Density of Soil and Soil-Aggregate by a Low-Activity Nuclear Method (Shallow Depth)
    ASTM D 6913/D6913M : 2017 Standard Test Methods for Particle-Size Distribution (Gradation) of Soils Using Sieve Analysis
    ASTM D 6539 : 2013 Standard Test Method for Measurement of the Permeability of Unsaturated Porous Materials by Flowing Air (Withdrawn 2022)
    ASTM D 7698 : 2011 : REV A Standard Test Method for In-Place Estimation of Density and Water Content of Soil and Aggregate by Correlation with Complex Impedance Method
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