Plate Bearing Testing

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A Plate Bearing Test is carried out at shallow depth using a steel plate (300mm to 600mm). 

The pressure is applied via a hydraulic jack, and uses a deadweight such as a tracked excavator.

The Plate Bearing Test can be used to determine the bearing capacity for working platforms, piling mats and crane outrigger pads. 

It is also used to determine the California Bearing Ratio (CBR) of sub-grade and/or sub-base for road design.  This is also known as the Modular of Sub-grade Reaction Test.  Alternatively, where the particle size of the sub-grade is less than 20mm diameter, a smaller scale California Bearing Ratio Test can be carried out via a cylindrical plunger and a deadweight such as excavator or 4-wheeled vehicle.