Triaxial Test 1

This is a semi-automatic triaxial test system. The setup consists of a flex panel for pressure control and volume readouts, a loading frame and transducers for measuring load, displacement, pore pressure and volume change. The setup allows for manual control of the test process during saturation phases of the triaxial test, independent of the loading frame. The consolidation and shearing phases are automatic.

Purpose:

• Obtain stress-strain behavior of soil under different loading conditions.
• Obtain CBR values for evaluation of pavement subgrade strength.
• Obtain unconfined shear strength of soil samples.
• Determine the coefficient of permeability to understand the flow through soils
• Determined the total and effective shear strength parameters

Ranges:

• Load cell: 10 kN and 50 kN
• Pneumatic Pressure controller: 1000 kPa
• LVDT: 5 mm X 0.001 mm
• Pore Pressure Transducer: 200 psi
• Volume Change: 100 cc
• De-airing Tank: 8 liters

• Shear strength parameters for embankment and foundation design.
• Determine quality/suitability of fill materials used during construction of various geotechnical structures.
• Strength parameters for pavement subgrade design using CBR

• Banerjee, Aritra, Anand J. Puppala, and Laureano R. Hoyos. “Suction-controlled multistage triaxial testing on clayey silty soil.” Engineering Geology 265 (2020): 105409.
• Banerjee, Aritra, Anand J. Puppala, Ujwalkumar D. Patil, Laureano R. Hoyos, and Puneet Bhaskar. “A simplified approach to determine the response of unsaturated soils using multistage triaxial test.” In IFCEE 2018, pp. 332-342. 2018.
• Du, Yan-Jun, Ning-Jun Jiang, Song-Yu Liu, Fei Jin, Devendra Narain Singh, and Anand J. Puppala. “Engineering properties and microstructural characteristics of cement-stabilized zinc-contaminated kaolin.” Canadian Geotechnical Journal 51, no. 3 (2014): 289-302.
• Puppala, A. J., E. Wattanasanticharoen, and K. Punthutaecha. “Experimental evaluations of stabilisation methods for sulphate-rich expansive soils.” Proceedings of the Institution of Civil Engineers-Ground Improvement 7, no. 1 (2003): 25-35.
• Puppala, Anand J., and Chisha Musenda. “Effects of fiber reinforcement on strength and volume change in expansive soils.” Transportation Research Record 1736, no. 1 (2000): 134-140.
• Puppala, Anand J., Julie Ann Griffin, Laureano R. Hoyos, and Suppakit Chomtid. “Studies on sulfate-resistant cement stabilization methods to address sulfate-induced soil heave.” Journal of geotechnical and geoenvironmental engineering130, no. 4 (2004): 391-402.
• Puppala, Anand J., Louay N. Mohammad, and Aaron Allen. “Engineering behavior of lime-treated Louisiana subgrade soil.” Transportation Research Record 1546, no. 1 (1996): 24-31.