Grader productivity depends on the machine's load-moving ability, its traction in the type of material being moved. Traction is defined as the amount of weight on driving wheels. The grader will perform differently in varying types of material. By using the coefficient of friction of the material underfoot as the condition under which wheel slippage will occur, maximum load moving ability may be determined. A grader's blade pull is determined, by multiplying the amount of weight on a grader's driving wheels by the coefficient of friction of the material being moved. Dirt is the most common material handled and its coefficient of 0.60 can be accepted as standard. Potential productivity is also determined by the digging ability. The latter can be expressed as: wheel base multiplied by the graders weight on front wheels divided by length of frame from cutting edge to center line of rear wheels. The cost of equipment and operations are also discussed.

  • Corporate Authors:

    Dun Donnelley Publishing Corporation

    222 South Riverside Plaza
    Chicago, IL  United States  60606
  • Publication Date: 1973-12

Media Info

  • Features: Figures; Photos;
  • Pagination: 2 p.
  • Serial:
    • Roads and Streets
    • Volume: 116
    • Issue Number: 12
    • Publisher: Donnelley (Reuben H) Corporation

Subject/Index Terms

Filing Info

  • Accession Number: 00264899
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Feb 11 1975 12:00AM