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Standard Triaxial Systems

This rock testing system is designed and manufactured to perform uniaxial and triaxial tests according to ASTM standards and suggested ISRM methods. The modular system can be configured with a variety of hydraulic load frames and power packs. Different triaxial cells can be used with adapters for different sample sizes from 25 mm to 100 mm. High pressure systems with customized attachments, advanced software packages and further accessories can be developed to suit your specific testing needs. This modular constructed system can be configured with different jigs and attachments in order to perform uniaxial compressive strength, triaxial strength, post failure, bending, indirect tensile, direct tensile, fracture toughness and creep tests.

 


  • High stiffness 4 column construction design
  • Wall type construction is available for higher stiffness
  • Different load ranges up to 3,000 kN
  • Hydraulic power packs with high quality noise protection, emergency functions for cyclic test procedures
  • Accessories to perform permeability testing as an option.
  • Cell and pore pressures of up to 140 MPa (20 000 psi) generated by a fully automatic pressure controller
  • Dynamic high speed closed-loop control of load, displacement, position and volume or flow
  • Flexible general controlling software for nearly unlimited test procedures of all uniaxial, triaxial and polyaxial test applications
  • Different test packages:
    • Uniaxial compression test package
    • Direct tension test package
    • Indirect tensile tackage (Brazilian Test)
    • Fracture toughness testing package
    • Point load testing package
  • Different sample sizes from 25 mm to 100 mm with related accessories
  • Digital setting of PID parameters for test parameter optimization and tuning
  • Real time graphics software with zoom and freeze functions for printer output at any time
  • Expandable real-time high resolution data acquisition and closed-loop control system
  • In vessel axial and circumferential displacement transducers

Type of load frame

Servo-hydraulic

Compression load Up to 3,000 kN
Tension load capacity Up to 1,500 kN
Confining pressure Up to 150 MPa
Pore pressure Up to 150 MPa
Frame stiffness Up to 3.000 kN/mm, >3 x 10^9 N/m
Stroke 50 mm (optional up to 150 mm)
Hardness 55 HRC / customised
Sample sizes Up to Ø 150 mm (height ratio 2:1)

Custom sample sizes on request

  • Not available
  • Not available
  • ASTM D-7012-14
  • Standard Test Methods for Compressive Strength and Elastic Moduli of Intact Rock Core Specimens under Varying States of Stress and Temperatures

  • ASTM D-7070-08
  • Standard Test Methods for Creep of Rock Core Under Constant Stress and Temperature

  • JGS 2521-2009
  • Method for Unconfined Compression Test on Rocks

  • JGS 2531-2009
  • Method for Unconsolidated-Undrained Triaxial Compression Test on Rocks

  • JGS 2532-2009
  • Method for Consolidated-Undrained Triaxial Compression Test on Soft Rocks

  • JGS 2533-2009
  • Method for Consolidated-Undrained Triaxial Compression Test on Soft Rocks with Pore Water Pressure Measurements

  • JGS 2534-2009
  • Method for Consolidated-Drained Triaxial Compression Test on Rocks

  • Detailed information will follow soon