Pendulum Skid Resistance and Friction Tester
The Pendulum Skid Tester measures the frictional resistance between a rubber slider mounted on the end of a pendulum arm and the test surface. This provides highway engineers with a routine method of checking the resistance of wet and dry surfaces to slipping and skidding, both in the lab and on site.
It is based on the Izod principle: a pendulum rotates about a spindle attached to a vertical pillar. At the end of the tubular arm a head of known mass is fi tted with a rubber slider.
The pendulum is released from a horizontal position so that it strikes the sample surface with a constant velocity. The distance travelled by the head after striking the sample is determined by the friction of thesample surface.
A reading of Skid Resistance is obtained.
Features
• Designed for laboratory and in situ road surface testing
• Dispatched calibrated to EN1097-8
• Low friction arm, and lightweight pointer
• Comes with integral 'F' scale for use with small slider set for 76mm slide length. (PSV test)
• Repeatable and reproducible
• Supplied with robust carrying case
Applications
• Road surface testing
• Testing of new road surface materials under development
• Testing of aggregates in the PSV (polished stone value) test
• Testing of fl oors and pedestrian walkways
• Flooring materials product development
• Accident investigations, both traffic and pedestrian
• Litigation investigations
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