Purpose-built for large-specimen cyclic simple shear on sands and mixed soils with coarse particles, enabling realistic field loading on oversized materials using a single horizontal axis.
Operates in stress- or displacement/strain-control, with programmable amplitude, frequency, cycle count, and termination criteria.
Maintains undrained conditions via constant-height (active/passive) control or performs drained tests under constant vertical load; suitable for modulus/damping evaluation, cyclic strength, and liquefaction studies on large samples.
Integrates high-capacity vertical and horizontal load cells with paired LVDTs for closed-loop control through consolidation, monotonic positioning, and cyclic shearing, ensuring stable, high-fidelity measurements at large strokes.
Includes automated one-dimensional consolidation under vertical load control prior to shear with programmable increments and dwell times for consistent preconditioning of coarse and mixed soils.
Seamlessly connects to ALFA Cloud for live plotting, cycle statistics, backbone curves, traceable data archiving, and standards-aligned reporting.
