COLD-MIX CONSTRUCTION CONSIDERATIONS WITH CUTBACK ASPHALT

THE TERM COLD MIX IS NORMALLY USED IN KANSAS TO DESCRIBE THE MIXING PROCESS OF A SOIL AND/OR AN AGGREGATE WITH A CUTBACK ASPHALT WITHOUT HEATING THE AGGREGATE EXCEPT BY THE SUN. IN GENERAL THIS PROCESS INVOLVES SOME OR ALL OF THE FOLLOWING SEVEN STEPS' 1. INITIALLY PLACING A WINDROW OF AGGREGATE ON THE ROADWAY TO BE SURFACED; 2. REDUCING THE MOISTURE CONTENT TO A SUITABLE VALUE BY BLADE MIXING; 3. EQUALIZING IT TO A UNIFORM CROSS SECTION; 4. ADDING A CUTBACK ASPHALT BY MEANS OF SUITABLE MIXING AND/OR DISTRIBUTING EQUIPMENT; /THE PREVIOUS STEPS CAN BE ELIMINATED IF NORMAL PLANT-MIX METHODS ARE EMPLOYED UTILIZING A DRYER./ 5. MANIPULATING THE MATERIAL WITH BLADES AND TILLERS TO AERATE THE VOLATILES, FURTHER REDUCE THE MOISTURE CONTENT, AND THOROUGHLY MIX THE COMBINATION; 6. SPREADING IT OVER THE ROADWAY IN THIN LIFTS; AND 7. COMPACTING IT BY SUITABLE ROLLING EQUIPMENT. THERE ARE, HOWEVER, OTHER PROBLEMS THAT RESULT FROM THE AGGREGATE SELECTED, THE TYPES OF EQUIPMENT USED, AND THE PREVAILING WEATHER DURING THE COURSE OF CONSTRUCTION. THESE ARE THE PROBLEMS WITH WHICH THIS PAPER IS CONCERNED. /AUTHOR/

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/hrr/1964/51/51-006.pdf
• Supplemental Notes:
  • 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:
  • Biege Jr, R R
  • Peyton, R L
• Publication Date: 1964

Media Info

• Media Type: Digital/other
• Features: Appendices; References; Tables;
• Pagination: pp 89-99
• Monograph Title: Bituminous concrete mixtures and construction
• Serial:
  • Highway Research Record
  • Issue Number: 51
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Cold mix paving mixtures; Compaction; Deposits (Geology); Highways; Liquid asphalt; Mixing; Moisture content; Physical distribution; Reduction (Chemistry); Rollers; Soil aggregates; Spreading; Surfacing
• Geographic Terms: Kansas
• Old TRIS Terms: Blade mixing; Mixing procedures; Reduction; Soil aggregate mixtures; Volatiles aeration; Windrows
• Subject Areas: Freight Transportation; Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00210266
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Dec 12 1994 12:00AM