Lab Services: Soil testing

Lab Services: Soil testing

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Test Method Title

Standard Test Method for Laboratory Miniature Vane Shear Test for Saturated Fine-Grained Clayey Soil

Reference Number

ASTM D4648

Material

Soil

Test Property

Shear Strength

Description of Test

The miniature vane shear test consists of inserting a four-bladed vane in the end of an undisturbed tube sample or remolded sample and rotating it at a constant rate to determine the torque required to cause a cylindrical surface to be sheared by the vane. This torque is then converted to a unit shearing resistance of the cylindrical surface area. The torque is measured by a calibrated torque spring or torque transducer that is attached directly to the vane.

Preferred Test Sample Size

2.87 in diameter x 3 ft Shelby tube or equivalent

Number of Test Specimens

1

Test Specimen Size

2.87 in x 2 in height

Keywords

clays, laboratory miniature, remolded, saturated, shear value, undisturbed, undrained strength, lab vane shear, vane shear

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