Home
Company Intro
Company Profile
Engineering Consulting
Engineering Tech
Natural Stone Tech
Test Equipment
Skid Tester for Sale
Projects
Testimonials
Jobs
Links
Contact Us

 


 

This test measures the resistance to the poling action of vehicle tyres under conditions similar to those occurring on the surface road. Polish stone value (PSV) is introduced to represent the resistance stat of surface.

The test is followed BS 812-114:1989: Methods for determination of the polished-stone value. The friction tester is used to measure the PSV. Ten locations are randomly chosen as test point. At each test point, two initial swings shall be carried out, to remove the surface moisture. Three further swings would be processed. The mean value of last three swings’ results will count as PSV for test point.