Strength, stress-strain relationship
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.
2.87 in diameter x 6 in
cohesive soil, sensitivity, strain-controlled loading, strength, stress-strain relationships, unconfined compression