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Triaxial Stress Path Test System

What is the Triaxial test?

Triaxial Stress Path Data Sheet
Sample Geotechnical Report
Cap and Pedestal Options

LoadTrac II/FlowTrac II or III

Our range of systems for triaxial testing fully automate Unconsolidated Undrained (UU), Consolidated Undrained (CU), Consolidated Drained (CD) and/or any possible stress path tests on soil and soft rock. The systems automate the initialization, saturation, consolidation (isotropic, anisotropic, or Ko) and shear phases along any stress path (drained, undrained, or mixed) of a test. Once a soil sample is in place, and the test conditions selected, the system will run the entire triaxial test from start to finish. There are multiple configurations available to suit a variety of technical requirements and budgets. The combination of ease of use, flexibility in test parameters and versatility to perform an array of tests is unmatched in the industry.

Applicable Test Standards

  • ASTM D2850, D4767, D7181
  • AASHTO T 296, T 297
  • COE EM 1110
  • BS 1377-6, 1377-7, 1377-8
  • ISO/TS 17892-8, 17892-9
  • AS 1289.6.4.1, 1289.6.4.2


  • Consolidation and shear phases contain up to 32 steps
  • User can specify all steps required to perform any stress path test possible in a triaxial cell, including the ability to specify changes in pore pressure
  • Fully automated via computer or standalone capability for control and data collection
  • Micro-stepper, electronic motor systems offer high speed, precise loading, and highly accurate automatic volume & pressure control
  • More accurate, reliable, and easier to maintain than units requiring hydraulics or air pressure
  • Immediately produce reports according to test standards
  • Front panel display and keypad for observation and control of the test
  • Geo-Net compatibility allows access and control over a computer network
  • System flexibility to optionally perform the broadest range of static and dynamic tests


LoadTrac II Load Frame:

  • Capacity: 45 kN (10,000 lbs) or 90 kN (20,000 lbs)
  • Rate of displacement: 0.00003 to 25 mm/min (0.000001 to 1.0 in/min)
  • Platen travel: 76 mm (3.0 in)
  • Dimensions: 464 x 546 x 1206 mm (18 x 21.5 x 47.5 in)
  • Weight: 55 kg (120 lbs)

FlowTrac II Pressure & Volume Control Flow Pump:

  • Capacity: 250 cc or 750 cc
  • Pressure: 200 psi (1400 kPa) or 500 psi (3500 kPa)
  • Volume rate control: 0.0003 to 1054 cc/min (0.00001 to 36 fl oz/min)
  • Dimensions: 203 x 406 x 470 mm (8 x 16 x 18.5 in)
  • Weight: 14 kg (30 lbs)

FlowTrac III Pressure & Volume Control Flow Pump:

  • Capacity: 200 or 280 cc
  • Pressure: 150 psi (1035 kPa) or 200 psi (1400 kPa)
  • Volume rate control: 0.0003 to 1054 cc/min (0.00001 to 36 fl oz/min)
  • Dimensions: 203 x 457 x 260 mm (8 x 18 x 10.25 in)
  • Weight: 11 kg (25 lbs)

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