Pendulum Skid Resistance tester hire
Pendulum skid resistance tester hire from Hammond Concrete.
The pendulum tester was originally designed in America by Percy Sigler in the 1940s. It was then taken and developed by the UK transport research laboratory in the 1960s.
The kit measures the skid resistance between a rubber slider and the contact (test) surface. 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 fitted with a rubber slider. The pendulum is released from a horizontal position so 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 the sample surface. This determines the dynamic coefficient of friction (CoF).
Applications for the tester include:
- Road surface testing
- Testing of aggregates in the PSV test
- Testing of floors and pedestrian walkways
- Accident investigations (traffic and pedestrian)
- Litigation investigations
The pendulum skid resistance tester is the HSEs preferred method of testing as it is portable and works in conditions slip accidents can happen. It is designed to recreate the effect of a pedestrian heel striking the floor (the most likely point for a slip to occur).
Pendulum skid resistance tester general method of use:
- Wet the test surface and slider using distilled water (unless carrying out a dry test)
- Move the pointer to its stop and release the pendulum arm. Catch it on its return swing, before the slider strikes the surface for a second time. Take note of the reading indicated by the pointer.
- Return the arm and pointer to its set position, ensure to keep the slider clear of the surface under test by lifting the handle. Repeat swings, spreading water over the contact area with a spray between each swing (unless dry testing). Record the readings as required by the applicable standard.
We keep different sliders in stock for the different applications. Please advise the testing being carried out to receive the appropriate slider.