California Friction Testing At MnROADs (CA-342) How Things Work November 12, 2008.

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Presentation transcript:

California Friction Testing At MnROADs (CA-342) How Things Work November 12, 2008

CA342 Friction Testing

CA-342 Equipment Operation Smooth Tire 6 mm Offset Above Pavement Distance Measuring Scale Slide Stand Springs Release

Shipping and Crating

Calibration of the Equipment Glycerin Container WD 40 Serrated Edge Calibration Plate Mounting Plate Environmental Trays Power Cable

MnROADs Test Locations Seven Friction Tests Conducted at Each Location (0, 5, 15, 30, 45, 90, 0 degrees) Three Locations Tested within Each Cell MnROADs Cells Tested Cell 7 NGCS Cell 8 CDG Cell 9 NGCS Lite Cell 10 RTT Cell 13 Astro Turf Cell 15 AC

Operation of Test Device for Determining Effect of Test Angle on Friction Value

Testing at 90 Degrees

Placing Glycerin on Wheel and Pavement

Friction as a Function of Test Angle

Questions?