 | | Cyclic Triaxial | | The LoadTrac II/FlowTrac-II cyclic automated test unit completely automates cyclic triaxial testing of soils. The system incorporates all the features of the stress path system with a servo control actuator for cyclic loading. | | Download: Product Spec | Sample Output |
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 | | Resilient Modulus | Geocomp's LoadTrac-II Resilient Modulus unit is a fully automated system that runs Resilient Modulus tests on base/subbase/subgrade materials by AASHTO T-294/T-307 and SHRP Protocol P46. It generates a complete final test report with graphs and table values as well as constitutive realtionships based on publication No. FHWA-RD-97-083.
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 | | Cyclic Simple Shear | | The ShearTrac II-DSS system is a universal shear system capable of performing the consolidation, static and cyclic direct simple shear phases under full automatic control. The DSS test generates a fairly homogeneous state of shear stress throughout the specimen, which provides initial stress condition, stress path, and deformation configuration that models numerous field loading conditions more closely than any other strength tests such as triaxial. The system consists of a computer-controlled unit that utilizes micro-stepper motors to apply the vertical and horizontal loads to the soil specimen.
The system is capable of running a consolidation phase for up to 32 increments automatically. Stress controlled cyclic can be applied up to a frequency of 1 Hz that can be followed by simple shearing at a specified rate of deformation or force. The constant volume condition is maintained through a closed loop computer control with the vertical displacement sensor as the feed back. The system is capable of displaying the current status of a test and graphically portraying the progress of the test in real time. The system includes the capability for the operator to alter the test process and conditions at any stage of the test. | | Download: Product Spec | Sample Output |
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