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.
Direct Shear Testing Systems
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