CONCRETE PAVEMENTS WITH CONTINUOUS REINFORCEMENT AND ELASTIC JOINTS

ATTEMPTS HAVE BEEN MADE TO OBTAIN THE BENEFITS OF CONTINUOUS PAVEMENT DESIGNS WITHOUT THE LARGE AMOUNTS OF STEEL IN CONTINUOUSLY REINFORCED AND RANDOMLY CRACKED ROADS. THE DESIGNS USE WEAKENED PLANE JOINTS WITH STEEL TIES CROSSING THE JOINTS (ELASTIC JOINTS) TO FORM TRANSVERSE HINGES ACROSS THE PAVEMENT. IN COMMON PRACTICE, CONTRACTION JOINTS HAVE BEEN USED INTERMITTENTLY AS EVERY FOURTH OR FIFTH JOINT TO AVOID EXCESSIVE STRESSES IN THE CONTINUOUS STEEL IN BETWEEN. CONTINUOUS PAVEMENTS USING ELASTIC JOINTS EXCLUSIVELY HAVE BEEN EXPLORED IN SWEDEN. CONTROLLED SLAB TENSION TESTS AND JOINT-WIDTH MEASUREMENTS HAVE GIVEN DATA ON JOINT-CRACKING FORCES AND MOVEMENTS AND ON FULL-SECTION CRACKING. THE EFFECTIVENESS OF DIFFERENT BAR BOND BREAKERS AND CORRESPONDING ELASTIC JOINT FORCES WAS OBSERVED. AN INITIAL SHORT HIGHWAY INSTALLATION INDICATED THAT 0.2 PERCENT CONTINUOUS STEEL AND ELASTIC JOINTS COULD BE USED, WITH THE BARS COATED WITH ASPHALT TO PREVENT BOND FOR A SHORT DISTANCE UNDER THE ELASTIC JOINTS. THE HIGHWAY INSTALLATION WAS INSPECTED AFTER THREE YEARS OF USE AND FOUND TO BE IN EXCELLENT CONDITION. NO RANDOM CRACKS OR OTHER DETERIORATION COULD BE SEEN. ALTHOUGH TRAFFIC WAS LIGHT COMPARED TO THAT ON AMERICAN DIVIDED HIGHWAYS, A LARGE PERCENTAGE WAS TRUCKS. /AUTHOR/

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/hrr/1969/291/291-004.pdf
• Supplemental Notes:
  • Paper sponsored by Committee on Rigid Pavement Design and presented at the 48th 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:
  • Persson, Bengt O E
  • Friberg, Bengt F
• Publication Date: 1969

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 48-56
• Monograph Title: Design, evaluation, and performance of pavement systems
• Serial:
  • Highway Research Record
  • Issue Number: 291
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Concrete pavements; Continuously reinforced concrete pavements; Contraction joints; Elasticity (Mechanics); Joints; Pavement performance; Transverse stiffeners
• Old TRIS Terms: Continuous reinforcement; Joint
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00207055
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Mar 9 1970 12:00AM