WINTER MAINTENANCE OF BITUMINOUS PAVEMENTS

THE ACCOMPLISHMENTS ARE DESCRIBED OF A TWO-YEAR STUDY ON THE MATERIALS EQUIPMENT AND PRACTICES USED BY THE TEXAS HIGHWAY DEPARTMENT FOR WINTER MAINTENANCE OF BITUMINOUS PAVEMENTS. THE FIRST SECTION DESCRIBES AND SUMMARIZES RESULTS OF A FIELD SURVEY DESIGNED TO IDENTIFY CURRENT PRACTICES AND PROBLEMS (DETAILED RESULTS ARE SHOWN IN APPENDIX A). MOST OF THE DISTRICTS INDICATED THEY HAD SEVER- AL SPECIFIC PROBLEM AREAS. THOSE AREAS MOST FREQUENTLY MENTIONED WERE SLICK PAVEMENTS, LOCALIZED FAILURES, RUTTING, SETTLEMENTS AND CRACKING. SEVERAL PROBLEM AREAS WERE SELECTED FOR INTENSIVE INVESTIGATION IN ORDER TO DEVELOP IMPROVED MATERIALS, EQUIPMENT AND PRACTICES FOR REMEDIAL ACTIVITIES. THESE INCLUDED CRACKING, POT HOLES, EDGE RAVELING AND POOR WORKABILITY OF COLD-LAY PATCHING MIXTURES. THE RESULTS OF THESE INVESTIGATIONS ARE DESCRIBED IN THE SECOND SECTION OF THE REPORT. CONCEPTS AND PRELIMINARY DESIGNS FOR SOME EQUIPMENT UNITS WERE DEVELOPED. A TEST FOR WORKABILITY OF COLD-LAY MIXTURES WAS DEVELOPED AND TESTED (DETAILS IN APPENDIX B). A CONCEPT OF PELLETIZING MIXTURES WAS EXPLORED BY PREPARING SMALL BATCHES IN THE LABORATORY, TESTING FOR WORKABILITY AND STABILITY AND PLACING TEST PATCHES. SEVERAL OTHER ITEMS WERE SUBJECTED TO PRELIMINARY INVESTIGATIONS. THE FINAL SECTION OF THE REPORT CONTAINS A DIGEST AND COMMENTS ON THE CAUSES, CURRENT REMEDIAL ACTIVITIES AND POSSIBLE IMPROVEMENTS TO ALLEVIATE TEN WIDESPREAD PROBLEM AREAS IN THE WINTER MAINTENANCE OF BITUMINOUS PAVEMENTS. /BPR/

• Supplemental Notes:
  • Hpr- 2-18-68-129, 129
• Corporate Authors:

  Texas Transportation Institute

  Texas A&M University System, 1600 E Lamar Boulevard
  Arlington, TX  United States  76011

  Texas State Department of Highways & Public Transp

  11th and Brazos Streets
  Austin, TX  United States  78701

  Bureau of Public Roads /US

  400 7th Street, SW
  Washington, DC  United States  20590
• Authors:
  • Hargett, E R
• Publication Date: 1969-5

Subject/Index Terms

• TRT Terms: Bituminous pavements; Cold weather; Operations; Patching; Pavement cracking; Pavement maintenance; Pavements; Plastic deformation; Settlement (Structures); Skid resistance; Skidding; Workability
• Subject Areas: Administration and Management; Highways; Maintenance and Preservation; Pavements;

Filing Info

• Accession Number: 00218048
• Record Type: Publication
• Source Agency: Bureau of Public Roads /US
• Files: TRIS, STATEDOT
• Created Date: Oct 27 1994 12:00AM