Abstract:
STUDIES WERE MADE AT THE STATE COLLEGE OF WASHINGTON TO DETERMINE THE LOSS OF TREAD RUBBER CAUSED BY SEVERAL TYPES OF ROAD SURFACES. THE SURFACES TESTED WERE CONCRETE, BRICK, BITULITHIC PENETRATION MACADAM AND SEVERAL TYPES OF GRAVEL AND BROKEN STONE. FROM THE DATA IT IS CONCLUDED THAT: (1) TIRE WEAR INCREASES WITH SPEED, (2) INCREASED WEAR WITH HIGHER TEMPERATURE IS INDICATED, (3) WEAR OF REAR TIRES IS GREATER THAN OF FRONT TIRES, VARYING FROM 118% ON GRAVEL TO 200% ON SMOOTH PAVEMENTS, AND (4) TIRE WEAR PER TON OF CAR IS PROBABLY CONSISTENT FOR ANY GIVEN ROAD SURFACE.
Supplemental Notes:
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