Skid Resistance 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 fitted 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 the sample surface.A
reading of Skid Resistance is obtained.

Technical Data of Skid Resistance Tester
a) Pendulum weight: 1500g
b) Distance of center of pendulum gravity 410mm
c) Forward Static Pressure From Rubber Sheet To Pavement:2263g
d) Oscillation during free falling of the pendulum from slope 5o is no less than
70 times.
e) Distance between oscillation center to outer edge of rubber sheet:510mm

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