ASTM D6635-15
(Test Method)Standard Test Method for Performing the Flat Plate Dilatometer (Withdrawn 2024)
Standard Test Method for Performing the Flat Plate Dilatometer (Withdrawn 2024)
SIGNIFICANCE AND USE
5.1 Soundings performed using this test method provide a detailed record of dilatometer results, which are useful for evaluation of site stratigraphy, homogeneity, depth to firm layers, voids or cavities, and other discontinuities. The penetration resistance, if obtained, and subsequent membrane expansion are used for soil classification and correlation with the engineering properties of soils.
5.2 The DMT may provide measurements of penetration resistance, lateral stress, deformation modulus, and pore-water pressure (in sands). However, the in-situ soil properties are affected by the penetration of the blade. Therefore, published correlations are used to estimate soil properties for the design and construction of earthworks and foundations for structures, and to predict the behavior of soils subjected to static or dynamic loads.
5.3 This test method tests the soil in-situ and soil samples are not obtained. However, the interpretation of the results from this test method does provide an estimate of the types of soil penetrated. Soil samples from parallel borings may be obtained for correlation purposes, but prior information or experience may preclude the need for borings.
Note 2: The quality of the result produced by this test method is dependent on the competence of the personnel performing it, and the suitability of the equipment and facilities used. Agencies that meet the criteria of Practice D3740 are generally considered capable of competent and objective testing/sampling/ inspection/etc. Users of this test method are cautioned that compliance with Practice D3740 does not in itself assure reliable results. Reliable results depend on many factors; Practice D3740 provides a means of evaluating some of those factors.
SCOPE
1.1 This test method describes an in-situ penetration plus expansion test. The test is initiated by forcing the steel, flat plate, dilatometer blade2, with its sharp cutting edge, into a soil. Each test consists of an increment of penetration, generally vertical, followed by the expansion of a flat, circular, metallic membrane into the surrounding soil. The test provides information about the soil's in-situ stratigraphy, stress, strength, compressibility, and pore-water pressure for use in the design of earthworks and foundations.
1.2 This method includes specific requirements for the preliminary reduction of dilatometer test data. It does not specify how to assess or use soil properties for engineering design.
1.3 This method applies best to those sands, silts, clays, and organic soils that can be readily penetrated with the dilatometer blade, preferably using static push (see 4.2). Test results for soils containing primarily gravel-sized particles and larger may not be useful without additional research.
1.4 This method is not applicable to soils that cannot be penetrated by the dilatometer2 blade without causing significant damage to the blade or its membrane.
1.5 The text of this standard references notes and footnotes that provide explanatory material. These notes and footnotes shall not be considered as requirements of the standard. The illustrations included in this standard are intended only for explanatory or advisory use
1.6 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. Reporting of test results in units other than SI shall not be regarded as nonconformance with this test method
1.7 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026.
1.8 The 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 should generally be retained. The procedures used do not consider material variation, purpose for obtaining the data, special purpose st...
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D6635 − 15
Standard Test Method for
1
Performing the Flat Plate Dilatometer
This standard is issued under the fixed designation D6635; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 1.7 All observed and calculated values shall conform to the
guidelines for significant digits and rounding established in
1.1 This test method describes an in-situ penetration plus
Practice D6026.
expansion test. The test is initiated by forcing the steel, flat
2
plate, dilatometer blade , with its sharp cutting edge, into a 1.8 The procedures used to specify how data are collected/
soil. Each test consists of an increment of penetration, gener- recorded and calculated in this standard are regarded as the
ally vertical, followed by the expansion of a flat, circular, industry standard. In addition, they are representative of the
metallic membrane into the surrounding soil. The test provides significant digits that should generally be retained. The proce-
information about the soil’s in-situ stratigraphy, stress, dures used do not consider material variation, purpose for
strength,compressibility,andpore-waterpressureforuseinthe obtaining the data, special purpose studies, or any consider-
design of earthworks and foundations. ations for the user’s objectives; and it is common practice to
increase or reduce significant digits of reported data to com-
1.2 This method includes specific requirements for the
mensurate with these considerations. It is beyond the scope of
preliminary reduction of dilatometer test data. It does not
this standard to consider significant digits used in analysis
specify how to assess or use soil properties for engineering
methods for engineering design.
design.
1.9 ASTM International takes no position respecting the
1.3 This method applies best to those sands, silts, clays, and
validity of any patent rights asserted in connection with any
organicsoilsthatcanbereadilypenetratedwiththedilatometer
item mentioned in this standard. Users of this standard are
blade, preferably using static push (see 4.2). Test results for
expresslyadvisedthatdeterminationofthevalidityofanysuch
soilscontainingprimarilygravel-sizedparticlesandlargermay
patent rights, and the risk of infringement of such rights, are
not be useful without additional research.
entirely their own responsibility.
1.4 This method is not applicable to soils that cannot be
2 1.10 This standard does not purport to address all of the
penetrated by the dilatometer blade without causing signifi-
safety concerns, if any, associated with its use. It is the
cant damage to the blade or its membrane.
responsibility of the user of this standard to establish appro-
1.5 The text of this standard references notes and footnotes
priate safety and health practices and determine the applica-
that provide explanatory material. These notes and footnotes
bility of regulatory limitations prior to use.
shall not be considered as requirements of the standard. The
illustrations included in this standard are intended only for
2. Referenced Documents
explanatory or advisory use
3
2.1 ASTM Standards:
1.6 Units—The values stated in SI units are to be regarded
D653 Terminology Relating to Soil, Rock, and Contained
as standard. No other units of measurement are included in this
Fluids
standard. Reporting of test results in units other than SI shall
D1586 Test Method for Penetration Test (SPT) and Split-
not be regarded as nonconformance with this test method
Barrel Sampling of Soils
D2435 Test Methods for One-Dimensional Consolidation
Properties of Soils Using Incremental Loading
1 D3441 Test Method for Mechanical Cone Penetration Tests
ThistestmethodisunderthejurisdictionofASTMCommitteeD18onSoiland
4
Rock and is the direct responsibility of Subcommittee D18.02 on Sampling and of Soil (Withdrawn 2014)
Related Field Testing for Soil Evaluations.
Current edition approved Nov. 1, 2015. Published December 2015. Originally
approved in 2001. Last previous edition approved in 2007 as D6635 – 01(2007).
3
DOI: 10.1520/D6635-15. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
2
The dilatometer is covered by a patent. Interested parties are invited to submit contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
information regarding the identification of an acceptable alternative(s) to this Standards volume information, refer to the standard’s Document Summary page on
patente
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D6635 − 01 (Reapproved 2007) D6635 − 15
Standard Test Method for
1
Performing the Flat Plate Dilatometer
This standard is issued under the fixed designation D6635; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope Scope*
1.1 This test method describes an in-situ penetration plus expansion test. The test is initiated by forcing the steel, flat plate,
2
dilatometer blade , with its sharp cutting edge, into a soil. Each test consists of an increment of penetration, generally vertical,
followed by the expansion of a flat, circular, metallic membrane into the surrounding soil. The test provides information about the
soil’s in-situ stratigraphy, stress, strength, compressibility, and pore-water pressure for use in the design of earthworks and
foundations.
1.2 This method includes specific requirements for the preliminary reduction of dilatometer test data. It does not specify how
to assess or use soil properties for engineering design.
1.3 This method applies best to those sands, silts, clays, and organic soils that can be readily penetrated with the dilatometer
blade, preferably using static push (see 4.2). Test results for soils containing primarily gravel-sized particles and larger may not
be useful without additional research.
2
1.4 This method is not applicable to soils that cannot be penetrated by the dilatometer blade without causing significant damage
to the blade or its membrane.
1.5 The text of this standard references notes and footnotes that provide explanatory material. These notes and footnotes shall
not be considered as requirements of the standard. The illustrations included in this standard are intended only for explanatory or
advisory use
1.6 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this
standard. Reporting of test results in units other than SI shall not be regarded as nonconformance with this test method
1.7 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice
D6026.
1.8 The 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 should generally 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 commensurate with these considerations. It
is beyond the scope of this standard to consider significant digits used in analysis methods for engineering design.
1.9 The American Society for Testing and Materials ASTM International takes no position respecting the validity of any patent
rights asserted in connection with any item mentioned in this standard. Users of this standard are expressly advised that
determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own
responsibility.
1.10 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.
1
This test method is under the jurisdiction of ASTM Committee D18 on Soil and Rock and is the direct responsibility of Subcommittee D18.02 on Sampling and Related
Field Testing for Soil Evaluations.
Current edition approved July 1, 2007Nov. 1, 2015. Published August 2007December 2015. Originally approved in 2001. Last previous edition approved in 20012007
as D6635 – 01.D6635 – 01(2007). DOI: 10.1520/D6635-01R07.10.1520/D6635-15.
2
The dilatometer is covered by a patent held by Dr. Silvano Marchetti, Via Bracciano 38, 00189, Roma, Italy. patent. Interested parties are invited to submit information
regarding the identification of an acceptable alternativesalternative(s) to this patented item to the Committee on Standards, ASTM Headquarters, 100 Barr Harbor Drive, West
Conshohocken, PA 19428–2959. ASTM International Headquarters. Your comments will receive careful consideration at thea meeting of the
...
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