Evaluate Densifier-over-Shotblasting (DOS) Treatment Performance for Pavements and Bridge Decks

Details

• Creators:
  Pittenger, Dominique ; Zaman, Musharraf ; Cumberpatch, Liam
• Corporate Creators:
  University of Oklahoma. Office of Research Services
• Corporate Contributors:
  Oklahoma. Department of Transportation. Research & Development Division ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  Aggregates Asphalt Hardening Bridge Decks Durability Evaluation And Assessment Pavement Maintenance Polished Aggregates Silicates Skid Resistance Specifications
• Publication/ Report Number:
  FHWA-OK- 16 - 02
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Oklahoma
• Edition:
  October 2013 – June 2016
• Corporate Publisher:
  Oklahoma. Department of Transportation
• Abstract:
  With increased demands on our aging infrastructure, rapidly increasing truck traffic, and shrinking budgets, transportation agencies are continually being asked to “do more with less” in maintaining pavements and bridges. This research provides a method for combining chemical treatment (lithium silicate densifier) and shotblasting, called densifier-over-shotblasting (DOS), to economically harden the aggregates of concrete and asphalt pavements and bridge decks. The DOS method can be added to the pavement preservation toolbox to make surfaces safer and more durable, reduce maintenance costs and increase service life of pavements and bridge decks. The study achieved three objectives, which include: (1) evaluate and measure the treatment’s ability to inhibit polishing and abrasion through the chemical hardening of aggregate (laboratory phase), (2) evaluate and measure the extent to which DOS inhibits micro-texture deterioration of road surfaces (field testing phase) and (3) develop specifications, design methodology, and construction methods necessary to transfer this novel technology to practice immediately after completion of the project.
• Format:
  PDF
• Funding:
  2258
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:7157a521dbedd9753edd7145a3a7f4920fe245815884532e761b1c6a9c0987841dbd7c79eaeeeb9de3495d5f647dcfaee869f6ac26030bd56fbdd09df9686c2d
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/89157/dot_89157_DS1.pdf
• File Type:
  [PDF - 4.40 MB ]