Test Method Title
Standard Test Method for Unconfined Compressive Strength of Cohesive Soil
Reference Number
ASTM D2166
Material
Soil
Test Property
Strength, stress-strain relationship
Description of Test
The primary purpose of the unconfined compression test is to quickly obtain the approximate compressive strength of soils that possess sufficient cohesion to permit testing in the unconfined state. A specimen with a length to diameter ratio of at least 2:1 (typically 2.87" diameter by 6" high) is compressed at a constant rate of loading while monitoring deformation and load. The peak load is recorded.
Number of Test Specimens
1
Test Specimen Size
2.87 in diameter x 6 in
Keywords
Cohesive soil, sensitivity, strain-controlled loading, strength, stress-strain relationships, unconfined compression