ASTM-D4648 2010

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D4648/D4648M-10 Standard Test Method for Laboratory Miniature Vane Shear Test for SaturatedFine-Grained Clayey Soil

Published By	Publication Date	Number of Pages
ASTM	2010	7

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Category: ASTM

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Description

1.1 This test method covers the miniature vane test in very soft to stiff saturated fine-grained clayey soils ( ? = 0). Knowledge of the nature of the soil in which each vane test is to be made is necessary for assessment of the applicability and interpretation of the test results.

Note 1It is recommended that the miniature vane test be conducted in fine-grained, predominately clay soils with an undrained shear strength less than 1.0 tsf [100 kPa]. Vane failure conditions in higher strength clay and predominantly silty soils may deviate from the assumed cylindrical failure surface, thereby causing error in the measured strength.

1.2 This test method includes the use of both conventional calibrated torque spring units (Method A) and electrical torque transducer units (Method B) with a motorized miniature vane shear device.

1.3 Laboratory vane is an ideal tool to investigate strength anisotropy in the vertical and horizontal directions, if suitable samples (specimens) are available.

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

1.5 The values stated in either SI units or inch-pound units 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.

1.6 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.

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology Summary of Test Method
2	Significance and Use Interferences Apparatus FIG. 1 FIG. 2
3	Preparation and Testing of Samples Preparation of Apparatus Calibration Application and Measurement of Vane Blade Torque FIG. 3
4	Vane Rotation and Shearing Rate Miniature Vane Test Procedures FIG. 4
5	Calculation
6	Report: Test Data Sheet(s)/Form(s) Precision and Bias Keywords FIG. 5
7	REFERENCES

Additional information

Standard Title	D4648/D4648M-10 Standard Test Method for Laboratory Miniature Vane Shear Test for SaturatedFine-Grained Clayey Soil
Published Code	ASTM
Publication Date	2010
Pages Count	7

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ASTM-D4648 2010

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