SDS-150 Direct Shear Testing System for Soils and Asphalt

  • Closed-loop servo control of double-acting (push/pull) 50 kN (5 ton) shear load actuator with 100 mm (±50 mm) stroke & 50 kN (5 ton) normal load capacity with 50 mm stroke
  • Normal load reaction support mounted on sliding bearings to minimize horizontal friction
  • Accepts 150 mm (6″) square specimens
  • Software for the automatic performance of direct shear tests with constant normal stress or normal stiffness
  • Available interface platens to test soils, asphalt, and geo-membranes
  • Conforms to AASHTO Standard T-236

Description

The GCTS Direct Shear Testing Systems can perform both constant normal stress and constant normal stiffness direct shear tests on either asphalt or soil specimens. These systems feature closed-loop servo control of the shear load and normal load actuators and are complete “turn-key” systems. Through advanced software and hardware, these systems are especially well-suited to test coarse, granular materials and essentially eliminate all vibrations that would disturb specimens during testing.

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