Determination of shear strength parameters of saturated soil based on triaxial compression shear tests conducted under aggregate conditions and pore water pressure measurements. The triaxial test system provides triaxial compression tests for cylindrical undisturbed and shaped soil samples. UU, undrained (CD) and consolidated undrained (CU) compaction tests can be performed with this device. Equipped with triaxial cell for 38mm diameter sample, multi-speed load frame with 50 KN load cell, pore pressure sensor, LVDT, air/water constant pressure system with air compressor. Operates on 220/230 volt, single phase, AC power. Aeration system with vacuum pump, automatic volume change meter, three-cell impregnation device, wall-mounted. Split molds, three-part molds, sample blanks, etc. can be provided upon request.