PERFORMANCE OF CONCRETE PAVEMENTS ON COUNTY ROADS IN IOWA

THIS PAPER REPORTS ON A PERFORMANCE EVALUATION OF 2,044 MILES OF PAVEMENT ON THE SECONDARY ROAD SYSTEM IN IOWA. THE SURVEY WAS MADE DURING THE PAST 2 CONSTRUCTION SEASONS AND USED THE PCA ROAD METER, A DEVICE INSTALLED IN A PASSENGER CAR TO MEASURE PSI OF PAVEMENTS WHILE TRAVELING AT A SPEED OF 50 MPH. BPR ROUGHOMETER MEASUREMENTS OF ALL NEWLY CONSTRUCTED PROJECTS SINCE 1955 ARE CHARTED, AS ARE CURRENT PSI READINGS. THE INFORMATION HAS BEEN OF PARTICULAR INTEREST TO IOWA CONTRACTORS, WHO HAVE SHOWN MARKED IMPROVEMENT IN ATTAINING SMOOTH CONCRETE PAVEMENTS OVER THE STUDY PERIOD. THE SURVEY SHOWS A WEIGHTED AVERAGE PSI OF 3.91 FOR THE TOTAL 2,044 MILES UNDER STUDY. THE SYSTEM FURNISHES A CONTINUING OPPORTUNITY TO OBSERVE THE PERFORMANCE OF THESE THINNER CONCRETE PAVEMENTS CONSTRUCTED ON A VARIETY OF SUBGRADES AND CARRYING MIXED TRAFFIC WHOSE PRESENT COUNTS VARY FROM ABOUT 200 TO 2,000 VEHICLES PER DAY. /AUTHOR/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/sr/sr116/116-021.pdf
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309018439
• 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:
  • Bester, W G
• Conference:
  • Western Summer Meeting
  • Location: Sacremento California, United States
  • Date: 1970-8-17 to 1970-8-19
• Publication Date: 1971

Media Info

• Media Type: Print
• Features: Figures; References;
• Pagination: pp 174-178
• Monograph Title: Improving Pavement and Bridge Deck Performance
• Serial:
  • Highway Research Board Special Report
  • Issue Number: 116
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Concrete pavements; Pavement performance; Pavements; Roughness; Rural areas; Secondary roads; Serviceability; Surface course (Pavements); Thickness; Thinness
• Uncontrolled Terms: Serviceability Index
• Geographic Terms: Iowa
• Subject Areas: Design; Highways; Pavements;

Filing Info

• Accession Number: 00207262
• Record Type: Publication
• ISBN: 0309018439
• Files: TRIS, TRB, ATRI
• Created Date: Jun 29 2000 12:00AM