Perform Consolidated Undrained (CU) triaxial tests accordance with Tex-131-E, or ASTM D4767. Perform CU on undisturbed 3-inch diameter specimens obtained in accordance with AASHTO T 207 or ASTM D1587. Specimens shall be free from tailings, cuttings, seams, cracks, and/or other disturbance that may affect the strength result obtained. Do not use specimens with noticeable disturbance for testing. Do not use specimens obtained within the upper 6 inches of the thin-walled tube sampler for testing.

Transport specimens for strength test to the laboratory and test as soon as practicable (after sampling) to prevent loss of moisture.