Large Hydraulic Four Point Bending Machine

Bending tests are widely used for measuring the stiffness modulus and assessing the fatigue resistance of asphaltic paving materials. Four point bending tests are included in CEN, AASHTO and Chinese test specifications. The specimen is a prismatic beam which is subjected to sinusoidal loading in either the controlled strain or controlled stress modes. This equipment is capable of testing over a wider frequency range (up to 60 Hz) than can be achieved with pneumatic loading systems.