Extensometer BENKELMAN

BENKELMAN BEAM The Benkelman Beam measures the deformation of a material under stress. This equipment is used for the two following test: • The plate test measures the static deformation EV1/EV2 (roads) and Westergard deformation (platforms). The Benkelman beam mesure the formation level bearing capacity by applying a load on the plate to the material with the loading device. • Standard Benkelman Beam tests measures pavement deflection in response to a static load. Measurement is made by placing the tip of the beam between the dual tires of a loaded truck and measuring the pavement surface rebound as the truck is moved away. MATERIAL For the deflection test, the beam is used alone. For the plate test, a loading device and aluminum plate are necessary. BENKELMAN BEAM High-end model Eco model ALUMINUM PLATE Ø 600 mm MANUAL LOADING DEVICES Hydraulic model Mechanical model APPLICATIONS PLATE LOADING TEST ACCORDIND TO THE ASTM D1195 AND ASTM D1196M STANDARDS FLEXIBLE PAVEMENT DEFLECTION TESTING ACCORDING TO THE ASTM D4695 STANDARD