Page 81 - HIGHWAY ENGINEERING LABORATORY_FLIP BUILDER

REFERENCE
WORK PROCESS DOCUMENT

4.0 PROCEDURE:

1. Fix the Pendulum Rubber at the end of Pendulum

2. Place the skid resistance tester on the road surface and level
the base according the Leveler bubble
Set up the equipment to zero reading according the following
3.
procedure :
i. Raiseupthepositionofthependulumusingtheadjuster
knobuntilthependulum can make a free swing

ii. Place the Pendulum at its bracket
iii. Makesurethereisnoobstaclealongthependulumswing
path,setupthereading pointer position equal to the

position of the pendulum.
iv. Repeat the procedure below until the reading pointer
produce a zero reading

v. value, make the adjustment using the adjuster screw.
4. Lowerthe pendulum till the pendulum slide rubber almost

reaches the road surface and then locks the knob adjuster
5. Check the slide distance travelled by the slide rubber on the
road surface with the aid of perspective ruler
6. The slide distance should be125 mm-127mm,if thedistance is

strayed away adjust the height of thependulum
7. Make sure the road surface is clean from the dust and sand.
Wet the road surface Place the pendulum at its bracket and
set up the reading pointer position equal to the position of

thependulum
8. Free thependulum, let thependulum provide a swing.During
thebackswing make sure the pendulum is catche before it
reach the road surface.

9. Measure the temperature of water at the road surface

Higway Engineering Laboratory page 68