The life of the various types of cutting edges for use on Motor Graders and Snowplows varies with the type of steel and its treatment by the manufacturer. This is an evaluation of the wear characteristics of five types of cutting edges, both Motor Patrol and Snowplow, used in the maintenance of gravel roads.
Comparing the two sets of data (gravel and snow) excluding the Carbide edges, the Carbon is best on snowplows and second best but only slightly lower in durability than flame hardened on gravel blading. Gravel blading is about three times more severe than snowplowing on cutting edges other
than Carbide Insert.
Minnesota Department of Transportation (Mn/DOT) conducted a research project to evaluate the contribution to motoring safety and durability of snowplowable pavement markers. Two styles were tried; a raised steel casting with reflector and a reflector recessed in a slot cut in the pavement. Different spacings (50 and 100 ft.) were tried and wet and dry night observations were made.
