Standard: EN 13036-4(also conforming to EN 1097-8, ASTM E103)
The instrument is mainly used for high-grade highways, urban roads and airport runways sliding performance testing. It applies to road surface friction coefficient of determination can be cut down to access. The instrument is easy to debug, simple operation, test data accuracy, stability, greatly improved, and can be used indoors and outdoors, is the building of high-grade highways, and other special equipment, testing instruments indispensable one.
How does it work?
The Pendulum measures the frictional resistance between a rubber slider mounted on the end of a pendulum arm and the test surface. This provides highway and flooring engineers with a routine method of checking the resistance of wet and dry surfaces to slipping and skidding.
The Pendulum measures the frictional resistance between a rubber slider mounted on the end of a pendulum arm and the test surface. This provides highway and flooring engineers with a routine method of checking the resistance of wet and dry surfaces to slipping and skidding.
Main technical parameters:
|
Weight of pendulum |
1500g |
|
Orthocenter distance of Pendulum |
410mm |
|
Face-on static pressure on pavement |
22.2N |
|
Distance between edge and center of pendulum |
508mm |
|
.Pendulum's sliding distance on pavement |
126mm |
Scientific basis of measurement
The Pendulum is based on the Izod principle: a pendulum consisting of a tubular arm rotates about a spindle attached to a vertical pillar. At the end of the tubular arm a head of constant 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 Values is obtained.