FLEXIBLE PAVEMENT RESEARCH IN VIRGINIA

THE TREND AWAY FROM MACADAM TOWARD DENSE-GRADED AGGREGATE AND FINALLY TO BLACK BASE IN FLEXIBLE BASE CONSTRUCTION IS TRACED. SEVERAL NOTABLE FAILURES WHICH LED TO THE ABANDONMENT OF SELECTIVE GRADING AND THE SUBSTITUTION OF SELECT BORROW FOUNDATION COURSES ARE DESCRIBED. MENTION IS MADE OF EXPERIMENTAL CONSTRUCTION INVOLVING CEMENT- AND LIME-TREATED SUBGRADES. MORE RECENTLY THIS FEATURE HAS BEEN INCORPORATED INTO A NUMBER OF PROJECTS WHERE SUITABLE SELECT BORROW HAS NOT BEEN AVAILABLE LOCALLY. BECAUSE RECENT TRENDS HAVE IN MOST CASES TENDED TOWARD DRASTIC INCREASES IN CONSTRUCTION COSTS, VIRGINIA'S HIGHWAY RESEARCH COUNCIL HAS PERSISTENTLY SOUGHT TO DEVELOP MEANS OF MINIMIZING THESE INCREASES. THE CONSTRUCTION OF EXPERIMENTAL PROJECTS AS PART OF THE REGULAR CONSTRUCTION PROGRAM IN ORDER TO COMPARE THE PERFORMANCE OF A VARIETY OF PAVEMENT DESIGNS UNDER THE SAME TRAFFIC CONDITIONS HAS BEEN PROPOSED, AND ONE SUCH PROJECT HAS BEEN BUILT. THE PRINCIPAL PURPOSE OF THIS PAPER IS TO DESCRIBE THE PROGRAM OF EXPERIMENTAL CONSTRUCTION, THE METHODS OF EVALUATION USED, AND THE APPLICATION OF THESE METHODS TO THE FIRST EXPERIMENTAL PROJECT. /AUTHOR/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrbbulletin/269/269-003.pdf
• Supplemental Notes:
  • No 269, pp 35-51, 9 FIG, 5 TAB, 6 REF 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:
  • Nichols Jr, Frank P
• Discussers:
  • Campen, W H
• Publication Date: 1960

Media Info

• Media Type: Digital/other
• Pagination: 17p
• Monograph Title: Flexible pavement design studies 1960
• Serial:
  • Highway Research Board Bulletin
  • Issue Number: 269
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Base course (Pavements); Bituminous aggregates; Cement treated soils; Construction; Costs; Dense graded aggregates; Flexible pavements; Foundations; Lime cement; Pavement design; Paving; Research
• Uncontrolled Terms: Cement treated bases; Construction costs
• Old TRIS Terms: Borrow
• Subject Areas: Construction; Finance; Geotechnology; Highways; Pavements; Research;

Filing Info

• Accession Number: 00214846
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: May 21 1994 12:00AM