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    Large Diameter Cyclic Triaxial Testing (LDCTTS)

    Model：LDCTTS

    Use：Complete turn-key solution for dynamic measurement of large particle triaxial samples.

    Standard：AASHTO T-307-99; AS 1289.6.4.1; AS 1289.6.4.2; AS 1289.6.6.1; ASTM D-3999-91; ASTM D-2850-03a; ASTM D- 7181; ASTM D-5084; BS 1377-6BS 1377-8; CEN ISO/TS 17892-8; CEN ISO/TS 17892-9; CEN ISO/TS 17892-11JGS

    Features & Benefits:
    •  
    • Complete turn-key solution for dynamic measurement of large particle triaxial samples.
    • Volume measurement by unique, proven method (HKUST).
    • Flexibility in the capacity of the system (specimen size, load and pressures).
    • GDSDCS (dynamic control system) for data acquisition and control.
    • Optional GDS dual channel pneumatic regulator for both cell pressure and back pressure.
    • Key features Benefits to the user
      Flexible system capacity: Specimen size, load and pressures can be selected to suit specification and budget.
      Interchangeable (internal submersible) load cells: Load cells to accommodate very soft to very stiff soils with ranges of 8, 16, 25, 32, 64, 128 and 250kN are available. The load frame is supplied with an external load cell to match the model maximum load range of 250kN.
      GDSDCS (dynamic control system): For data acquisition and control, 8 channels of expandable accurate high speed acquisition and control.
      Direct closed-loop dynamic control of axial displacement or axial force to 10Hz, sinusoidal, triangular or user defined waveform: Accurate and flexible control options.

    Technical Specification:

    Axial Force Accuracy

    <0.1% of load cell range (i.e. 10N for 100kN load cell)

    Axial Force Accuracy

    16bit (i.e. <0.4N for 10kN load cell, <1.5N for 40kN load cell)

    Displacement Accuracy

    <0.15% (i.e. <0.15mm)

    Displacement Range

    100mm

    Displacement Resolution

    16bit (i.e. <3µm)

    Load Range (kN)

    250

    Operating Frequency (Hz)

    0 to 10Hz

    Sample Sizes

    300mm x 600mm


    Upgrade Options:
    • Volume Measurement by HKUST.
    • Bender Element System (Vertical, Horizontal, S and P waves).
    • Hall Effect local Strain.
    • LVDT Local Strain.
    • Unsaturated Testing.
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