Carbide Grinding

Carbide grinding is performed with a standard high production belt loading rotomill but with a different drum. What makes carbide grinding so unique is it’s surface tolerance. A standard milling drum has a distance of 5/8” center to center of each strike area with a 3/8” difference between the the high and low of the matted surface. Carbide grinding has a transverse pattern of 1/5” center to center of each strike area with a 1/16” difference between the the high and low of the matted surface.

Carbide grinding can be used as a finished riding surface on both bituminous and concrete pavements. Other applications include adding skid resistance to a riding surface and has the surface tolerance to allow a thin overlay such a 1” open graded course to be applied directly over the ground surface. In studies during the Boston Central Artery Project the Artery officials proved that carbide grinding performed better than standard milling in reducing damage to the underlying pavement when correcting surface irregularities of new pavements. The term used by the artery for damage done to underlying pavements was micro-cracking.