Servo-Pneumatic Universal Testing Machine

By: Cooper Technology  16/12/2010
Keywords: Utm, asphalt testing


The Servo-pneumatic Universal Testing Machince CRT-UTM-NU is a development of the NAT which was developed by Keith Cooper and Professor Steven Brown at the University of Nottingham. The use of a high precision servo-pneumatic valve in conjunction with a low-friction actuator and sophisticated data acquisition and control, results in a performance that is equivalent to servo-hydraulic systems.

Accurate, digitally generated waveforms are applied by the actuator producing repeatable stress variations in test specimens that are simulative of those in a road pavement due to moving traffic. The actuator is double-acting allowing both compressive and tensile forces to be applied. A triaxial cell system is available for the measurement of the resilient modulus of unbound materials.

Keywords: asphalt testing, Utm

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