Concrete Compression Machines from Gilson meet all ASTM/AASHTO strength testing requirements for conventional concrete test cylinders. A complete selection of compression machine accessories allows easy configuration of all models to test concrete cores, cubes, and flexural beam specimens.
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Electronic controllers on Standard or Automatic series concrete testing compression machines feature options for operational control, data collection, and distribution. Choose a load frame capacity best suited for your testing needs. All models operate on 110V,60Hz power supplies. Add “F” suffix to the model number to order a machine that operates on 230V,50Hz.
Automatic Controllers perform the selected test methods to the exact requirements of the selected ASTM or AASHTO standard. The controllers also collect and store complete specimens and test data for analysis and reporting.
Gilson Automatic Compression Machines regulate hydraulic loading force by controlling the speed of the electric motor. Advanced electronics regulate motor speeds and oil pressures to supply exactly the required amount of hydraulic force. This energy-efficient on-demand operation prevents pressure variations from overheated oil, extends service life, and is dramatically quieter.
Advanced machine models are outfitted with special hydraulic and electronic networks for load control and measurement of sample deformation to determine the Modulus of Elasticity and Poisson’s ratio with the use of specified accessories. Load frame capacities from 250,000 to 450,000lbf (1,112 to 2,002kN) allow the selection of the most cost-effective machine for your application.
ASTM C39 permits the initial loading of the specimen at a higher rate for the first half of the test. Loading during this phase must be paused at 10% of the anticipated final load to verify specimen alignment. When resumed, the total load must be monitored to judge when the hydraulic control should be switched over to a metered rate. The metered load rate is adjusted prior to operation to comply with test method requirements.
Standard Compression Machine load frames are available with load frame capacities from 250,000 to 500,000lbf (1,112 to 2,224kN). These frames exceed the American Concrete Institute (ACI) recommendations for stiffness with solid steel crossheads from 3 to 6in (76 to 152mm) thick. Each frame can be fitted with specified accessories to perform strength tests on cores, cubes, tensile splitting specimens, or flexural beams. Contact our Tech Experts for help designing a custom compression machine with a capacity of up to 1,000,000lbf (4,448kN).
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