SHOT BLASTING MAY IMPROVE HIGHWAY SKID RESISTANCE

The testing is described of a shot blaster to enhance pavement friction which is crucial to skid resistance on asphalt and concrete surfaces. During tests on 4 different road surfaces, pretreatment runs were made to determine initial skid numbers using both bald and treaded tires. Skid tests were performed both before and after treatment. Analysis of the results showed that skid resistance was significantly improved in all cases. The shot blaster textures a road surface by bombarding it with steel abrasive media impelled at the surface at a high velocity. These tiny projectiles abrade and remove the surface layer of cement or bitumen that has become glazed with road contaminants. This process takes place under a shroud that encloses and seals the portion of surface being treated. The abrasive media are continually recycled as the machine moves steadily down the road. The machine is connected to a truck-mounted dust collector to insure a clean surface and dust-free surroundings.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/11660022
• Corporate Authors:

  Scranton Gillette Communications

  380 E Northwest Highway, Suite 200
  Des Planes, IL  United States  60016-2282
• Publication Date: 1989-4

Media Info

• Pagination: p. 66
• Serial:
  • Roads & Bridges
  • Volume: 27
  • Issue Number: 4
  • Publisher: Scranton Gillette Communications
  • ISSN: 8750-9229
  • Serial URL: http://www.roadsbridges.com/rb/

Subject/Index Terms

• TRT Terms: Asphalt concrete; Asphalt pavements; Before and after studies; Concrete pavements; Dust control; Pavements; Skid resistance; Skid resistance tests; Surface course (Pavements); Texture
• Uncontrolled Terms: Shot blasting
• Old TRIS Terms: Dust collectors
• Subject Areas: Design; Highways; Maintenance and Preservation; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces;

Filing Info

• Accession Number: 00485074
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 30 2000 12:00AM