• ASTM D 2435/D2435M : 2011

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 One-Dimensional Consolidation Properties of Soils Using Incremental Loading

    Available format(s):  Hardcopy, PDF

    Superseded date:  08-26-2020

    Language(s):  English

    Published date:  05-01-2011

    Publisher:  American Society for Testing and Materials

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    Abstract - (Show below) - (Hide below)

    p id="s00002">1.1 These test methods cover procedures for determining the magnitude and rate of consolidation of soil when it is restrained laterally and drained axially while subjected to incrementally applied controlled-stress loading.

    Scope - (Show below) - (Hide below)

    p id="s00002">1.1 These test methods cover procedures for determining the magnitude and rate of consolidation of soil when it is restrained laterally and drained axially while subjected to incrementally applied controlled-stress loading. Two alternative procedures are provided as follows:

    1.1.1 Test Method AThis test method is performed with constant load increment duration of 24 h, or multiples thereof. Time-deformation readings are required on a minimum of two load increments. This test method provides only the compression curve of the specimen and the results combine both primary consolidation and secondary compression deformations.

    1.1.2 Test Method BTime-deformation readings are required on all load increments. Successive load increments are applied after 100 % primary consolidation is reached, or at constant time increments as described in Test Method A. This test method provides the compression curve with explicit data to account for secondary compression, the coefficient of consolidation for saturated materials, and the rate of secondary compression.

    Note 1—The determination of the rate and magnitude of consolidation of soil when it is subjected to controlled-strain loading is covered by Test Method D4186.

    1.2 These test methods are most commonly performed on saturated intact samples of fine grained soils naturally sedimented in water, however, the basic test procedure is applicable, as well, to specimens of compacted soils and intact samples of soils formed by other processes such as weathering or chemical alteration. Evaluation techniques specified in these test methods assume the pore space is fully saturated and are generally applicable to soils naturally sedimented in water. Tests performed on other unsaturated materials such as compacted and residual (weathered or chemically altered) soils may require special evaluation techniques. In particular, the rate of consolidation (interpretation of the time curves) is only applicable to fully saturated specimens.

    1.3 It shall be the responsibility of the agency requesting this test to specify the magnitude and sequence of each load increment, including the location of a rebound cycle, if required, and, for Test Method A, the load increments for which time-deformation readings are desired. The required maximum stress level depends on the purpose of the test and must be agreed on with the requesting agency. In the absence of specific instructions, Section 11 provides the default load increment and load duration schedule for a standard test.

    Note 2—Time-deformation readings are required to determine the time for completion of primary consolidation and for evaluating the coefficient of consolidation, cv. Since cv varies with stress level and loading type (loading or unloading), the load increments with timed readings must be selected with specific reference to the individual project. Alternatively, the requesting agency may specify Test Method B wherein the time-deformation readings are taken on all load increments.

    1.4 These test methods do not address the use of a back pressure to saturate the specimen. Equipment is available to perform consolidation tests using back pressure saturation. The addition of back pressure saturation does not constitute non-conformance to these test methods.

    1.5 UnitsThe values stated in either SI units or inch-pound units [given in brackets] are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

    1.5.1 In the engineering profession it is customary practice to use, interchangeably, units representing both mass and force, unless dynamic calculations (F = Ma) are involved. This implicitly combines two separate systems of units, that is, the absolute system and the gravimetric system. It is scientifically undesirable to combine two separate systems within a single standard. This test method has been written using SI units; however, inch-pound conversions are given in the gravimetric system, where the pound (lbf) represents a unit of force (weight). The use of balances or scales recording pounds of mass (lbm), or the recording of density in lb/ft3 should not be regarded as nonconformance with this test method.

    1.6 Observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026, unless superseded by this test method.

    1.6.1 The method used to specify how data are collected, calculated, or recorded in this standard is not directly related to the accuracy to which the data can be applied in design or other uses, or both. How one applies the results obtained using this standard is beyond its scope.

    1.7 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 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 4220 : 1995 : R2000 Standard Practices for Preserving and Transporting Soil Samples
    ASTM D 2487 : 2017 : EDT 1 Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System)
    ASTM D 3550 : 1984 : R1995 : EDT 1 Standard Practice for Thick Wall, Ring-Lined, Split Barrel, Drive Sampling of Soils
    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 6027 : 1996 : R2004 Standard Test Method for Calibrating Linear Displacement Transducers for Geotechnical Purposes (Withdrawn 2013)
    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 4546 : 2003 Standard Test Methods for One-Dimensional Swell or Settlement Potential of Cohesive Soils
    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 4452 : 1985 Standard Methods for X-Ray Radiography of Soil Samples
    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 4220 : 1995 : R2007 Standard Practices for Preserving and Transporting Soil Samples
    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 1587 : 2008 : R2012 : EDT 1 Standard Practice for Thin-Walled Tube Sampling of Soils for Geotechnical Purposes
    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 1587 : 2008 Standard Practice for Thin-Walled Tube Sampling of Soils for Geotechnical Purposes
    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 4452 : 1985 : R1995 : EDT 1 Standard Methods for X-Ray Radiography of Soil Samples
    ASTM D 4546 : 2008 Standard Test Methods for One-Dimensional Swell or Collapse of Cohesive Soils
    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 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 3550 : 2001 : R2007 Standard Practice for Thick Wall, Ring-Lined, Split Barrel, Drive Sampling of Soils (Withdrawn 2016)
    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 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 2487 : 2006 : EDT 1 Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System)
    ASTM D 4318 : 2010 : EDT 1 Standard Test Methods for Liquid Limit, Plastic Limit, and Plasticity Index of Soils
    ASTM D 4546 : 2014 Standard Test Methods for One-Dimensional Swell or Collapse of Soils
    ASTM D 6027 : 1996 : EDT 1 Standard Test Method for Calibrating Linear Displacement Transducers for Geotechnical Purposes
    ASTM D 4452 : 2006 Standard Practice for X-Ray Radiography of Soil Samples
    ASTM D 4452 : 2014 Standard Practice for X-Ray Radiography of Soil Samples
    ASTM D 4546 : 1996 Standard Test Methods for One-Dimensional Swell or Settlement Potential of Cohesive Soils
    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 2487 : 2006 Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System)
    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 2487 : 2011 Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System)
    ASTM D 4452 : 1985 : R2002 : EDT 1 Standard Test Methods for X-Ray Radiography of Soil Samples
    ASTM D 4186 : 2006 Standard Test Method for One-Dimensional Consolidation Properties of Saturated Cohesive Soils Using Controlled-Strain Loading
    ASTM D 4186 : 1989 : R1998 : EDT 1 Standard Test Method for One-Dimensional Consolidation Properties of Soils Using Controlled-Strain Loading
    ASTM D 1587 : 2000 Standard Practice for Thin-Walled Tube Sampling of Soils for Geotechnical Purposes
    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 2487 : 1969 : R1975 Standard Test Method for Classification Of Soils For Engineering Purposes
    ASTM D 3550 : 2001 Standard Practice for Thick Wall, Ring-Lined, Split Barrel, Drive Sampling of Soils
    ASTM D 4546 : 2014 : EDT 1 Standard Test Methods for One-Dimensional Swell or Collapse of Soils
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