HEAVY PNEUMATIC ROLLING PRIOR TO OVERLAYING: A 10 YEAR PROJECT REPORT

THIS REPORT COVERS A 10-YEAR FIELD STUDY TO DETERMINE THE PRACTICABILITY OF USING A PNEUMATIC-TIRED, 50-TON ROLLER TO BREAK AND SEAT OLD CONCRETE PAVEMENTS BEFORE OVERLAYING WITH HOT-MIX ASPHALTIC CONCRETE. THE METHOD IS A COMPARATIVE ANALYSIS OF THE BEHAVIOR OF VARIOUS ROADWAY SECTIONS UNDER TRAFFIC EMPLOYING DIFFERENT BREAKING AND SEATING TECHNIQUES OF A 50-TON PNEUMATIC ROLLER AND AN IMPACT HAMMER ON A SELECTED CONSTRUCTION PROJECT WITH A WET SUBGRADE. RESULTS INDICATE THAT A 50-TON ROLLER SHOULD BE USED IN CONJUNCTION WITH AN IMPACT HAMMER, USING 3 OR 4 ROLLER COVERAGES FOR SLAB-BREAKING AND SEATING ON A WET SUBGRADE TO REDUCE DEFLECTION CRACKING. SPECIFICATIONS WERE DEVELOPED BUT SUBSEQUENT RESULTS, BECAUSE OF THE GENERAL DRYNESS OF THE SUBGRADES ON THESE PROJECTS, WERE NOT AS SUCCESSFUL AS ANTICIPATED. TEN-YEAR CHARACTERISTICS OF THE STUDY PROJECT VERIFIED THE INITIAL STUDY FINDINGS. THE 50-TON ROLLER USED IN CONJUNCTION WITH AN IMPACT HAMMER TO BREAK AND SEAT OLD CONCRETE PAVEMENTS ON WET OR YIELDING SUBGRADES CAN REDUCE REFLECTION CRACKING, BUT ITS USE ON FIRM SUBGRADES HAS NOT BEEN EFFECTIVE. /AUTHOR/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrr/1970/327/327-006.pdf
• Supplemental Notes:
  • Paper sponsored by Committee on Salvaging Old Pavements by Resurfacing and presented at the 49th Annual Meeting. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • Lyon, J W
• Conference:
  • 49th Annual Meeting of the Highway Research Board
  • Location: Washington District of Columbia, United States
  • Date: 1970-1-12 to 1970-1-16
• Publication Date: 1970

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 45-49
• Monograph Title: Pavement rehabilitation and design of overlays
• Serial:
  • Highway Research Record
  • Issue Number: 327
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Asphalt concrete; Concrete pavements; Fracture mechanics; Hammers; Hot mix asphalt; Impacts; Overlays (Pavements); Pavements; Pneumatic equipment; Reflection cracking; Resurfacing; Rollers; Salvage; Seats; Soil water; Subgrade (Pavements); Tires
• Old TRIS Terms: Pneumatic tire; Subgrade moisture
• Subject Areas: Highways; Maintenance and Preservation; Pavements; Vehicles and Equipment;

Filing Info

• Accession Number: 00218717
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Apr 25 1971 12:00AM