Materials Testing Systems Field Monitoring Systems Pavement Instrumentation Monitoring Rentals

Direct / Residual Shear Test System

What is the Direct/Residual Shear test?

Direct Residual Shear Data Sheet
Sample Geotechnical Report

ShearTrac II

The ShearTrac II system is capable of performing the consolidation and shearing phases of a standard direct or residual shear test under fully automated control with convenient monitoring and instant test results. It consists of a computer-controlled unit using independent, electro-mechanical micro-stepper systems to apply the vertical and horizontal loads to soil specimens.

Applicable Test Standards

  • ASTM D2435, D3080
  • AASHTO T 216, T 236
  • BS 1377-7
  • ISO/TS 17892-10
  • AS 1289.6.2.2


  • Stress (load) or strain (displacement) control
  • Tabletop design saves space
  • Fully automated via computer or standalone capability for control and data collection
  • Full automation of residual shear testing
  • Micro-stepper, electronic motor systems offer precise loading and shearing
  • 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 Direct Simple Shear, 1-D Incremental Consolidation, Constant Rate-of-Strain (CRS) Consolidation, and Unconfined Compression testing


  • Choose load capacity to fit user needs up to 11 kN (2,500 lbs) horizontal & vertical
  • Accurate displacement rate control from 0.000006 to 21 mm/min (0.0000003 to 0.8 in/min)
  • Vertical travel: 25.4 mm (1.00 in)
  • Horizontal travel: +/- 25.4 mm (1.00 in)
  • Dimensions: 228 x 560 x 762 mm (9 x 22 x 30 in)
  • Weight: 63 kg (140 lbs)
  • Shear boxes: 63.5 mm (2.5 in) standard; many options available including special ModCal
Request More Information Direct Residual Shear Apparatus

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