Standard Method of Test for
Unconsolidated, Undrained Compressive Strength
of Cohesive Soils in Triaxial Compression
AASHTO Designation:T 296-05
1.1.This test method covers the determination of unconsolidated strength and stress-strain relationships for a cylindrical specimen of either an undisturbed or
remolded cohesive soil sheared undrained in compression at a constant rate of axial deformation (strain controlled).
1.2.The test method provides for the calculation of total stresses on, and axial compression of, the test specimen by measurement of axial load and axial deformation.
1.3.The test provides data useful in determining strength and deformation properties of cohesive soils much as Mohr strength envelopes and Young’s modulus.
1.4.The determination of strength envelopes and the development of relationships to aid in interpreting and evaluating test results are left to the engineer or office
requesting the test.
1.5.The values stated in SI units are to be regarded as standard.
Click below to download AASHTO Designation:T 296-05 pdf free
Click here to download AASHTO Designation: T 295-08 pdf free download