This method covers the sample preparation and polishing of unbound aggregates for dynamic friction testing using a three-wheel polishing device (TWPD).
AASHTO PP 103-21 (2022)
Original price was: $89.00.$44.00Current price is: $44.00.
Standard Practice for Sample Preparation and Polishing of Unbound Aggregates for Dynamic Friction Testing
American Association of State Highway and Transportation Officials , 2021
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