An unconfined compression strength. test was conducted on a cohesive soil. The test specimen failed at an axial stress of 78 kPa. The undrained cohesion is.

In a direct shear test of a 2-inch by 2-inch (SP) specimen, the vertical weight was 31 Ib, and the horizontal load at failure was 19 Ib, the weight of the sample 70 grams and the sample thick 0.7 inch, the estimate effective friction angle for this test is

Describe about the Unconsolidated–undrained (U–U) triaxial test data relationship between total stress, effective stress, and pore water pressure.

The main difference between Unconfined compression test and triaxil compression test is that in this test the confining cell pressure is kept zero during the test, in fact it is a special case of triaxial test with zero side presure. True   False