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1.1 This test method covers the miniature vane test in very soft to stiff saturated fine-grained clayey soils (Φ = 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 1—It 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 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only. All measured and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D 6026.
1.5 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1587 Practice for Thin-Walled Tube Sampling of Soils
D2573 Method for Field Vane Shear Test In Cohesive Soil
D3740 Practice for Minimum Requirements for Agencies Engaged in the Testing and/or Inspection of Soil and Rock as used in Engineering Design and Construction
D4220 Practices for Preserving and Transporting Soil Samples
D6026 Practice for Using Significant Digits in Geotechnical Data
ICS Number Code 93.020 (Earth works. Excavations. Foundation construction. Underground works)
UNSPSC Code 11111800(Clays)
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ASTM D4648-05, Standard Test Method for Laboratory Miniature Vane Shear Test for SaturatedFine-Grained Clayey Soil, ASTM International, West Conshohocken, PA, 2005, www.astm.orgBack to Top