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Accelerated Polishing Machines

Accelerated Polishing Machine:-
The object of this apparatus is to determine the polished stone value which gives a relative measure of the extent to which different types of road stones in the wearing surface will polish under traffic. The complete apparatus consists of the following:
  1. An accelerated polishing machine.
  2. A friction tester.
  3. IS test sieves of sizes 10mm., 8.0mm.(both perforated plate), 425micron, 300micron, 212micron, 150micron.

Meets: - IS: 2386 (Part 4),