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Strength Testing

Unconfined Compression Test System

LoadTrac III

The LoadTrac III load frame performs unconfined compressive strength testing under fully automated control with convenient remote monitoring and instant test results. The unconfined compression test is a core offering for most laboratories and allows you to quickly measure the compressive strength for cohesive soils and other materials. Once a sample is in place, and the test conditions selected, the system will run the entire test from start to finish.

 

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Description

The unconfined compressive strength (UC or UCS) test method quickly measures the approximate strength (in terms of total stress) of cohesive or cemented soils. The results can then be used to calculate the unconsolidated undrained shear strength, which for soils is necessary for determination of bearing capacity for foundation, dams, etc. The specimen is compressed using a constant rate of displacement while monitoring deformation and load. A length to diameter ratio of at least 2:1 is used.
Lab Photo

Frequently Asked Questions

The LoadTrac III is a compact and lower cost load frame designed to excel at the most common compression tests in the lab. It can easily be upgraded to perform additional test types by purchasing required software and accessories.  Incremental Consolidation, Swell, and Unconfined Compression are popular tests performed on the load frame alone. Constant Rate Consolidation is an option with the addition of one FlowTrac pressure & volume control flow pump. Triaxial (UU, CU, CD) and Stress Path testing is possible with one to two FlowTrac flow pumps. California Bearing Ratio testing is possible, but will be limited by the lower load capacity. The LoadTrac II would be better suited for CBR testing. Contact one of our sales team today to discuss all available configurations and options.