CONTINUOUS REINFORCEMENT IN CONCRETE PAVEMENTS

IN 1938 THERE WAS CONSTRUCTED NEAR STILESVILLE, INDIANA, AS A COOPERATIVE RESEARCH PROJECT, A REINFORCED CONCRETE PAVEMENT CONTAINING A NUMBER OF EXPERIMENTAL SECTIONS. THESE RANGED IN LENGTH FROM 20 TO 1,310 FEET. THREE TYPES OF STEEL WERE USED AND THE AMOUNT OF LONGITUDINAL REINFORCEMENT WAS VARIED FROM 0.07 TO 1.82 PERCENT AMONG THE SECTIONS. THE OBJECT WAS TO OBTAIN INFORMATION ON THE POSSIBILITIES FOR REDUCING THE NUMBER OF TRANSVERSE JOINTS IN CONCRETE PAVEMENTS THROUGH THE USE OF LONGITUDINAL STEEL REINFORCEMENT. OBSERVATION OF THE EXPERIMENTAL PAVEMENT AFTER 15 1/2 YEARS OF SERVICE INDICATES THAT SECTIONS OF ANY LENGTH WITHIN THE RANGE STUDIED CAN BE REINFORCED LONGITUDINALLY TO GIVE SATISFACTORY PERFORMANCE WITHOUT FAILURE OF THE STEEL OR ADVERSE EFFECTS ON THE CONCRETE. IN THE LONG, HEAVILY REINFORCED SECTIONS NUMEROUS CLOSELY SPACED TRANSVERSE CRACKS HAVE DEVELOPED BUT THESE HAVE NOT OPENED AND ARE NOT DETRIMENTAL TO SURFACE SMOOTHNESS OR PAVEMENT LIFE. IN FACT, AN OUTSTANDING IMPRESSION OF THE PAVEMENT IS THE SUPERFICIAL NATURE AND STRUCTURALLY HARMLESS CHARACTER OF TRANSVERSE CRACKS HELD CLOSED BY CONTINUOUS LONGITUDINAL REINFORCEMENT. IRRESPECTIVE OF SECTION LENGTH, ALL CRACKS HELD CLOSED BY REINFORCEMENT HAVE BEEN HIGHLY RESITANTA TO PUMPING, FREE OF FAULTING AND HAVE REQUIRED LITTLE OR NO MAINTENANCE. LONGITUDINAL REINFORCEMENT IN VERY LARGE AMOUNTS CAN BE USED WITHOUT DANGER OF CRACKING OF THE CONCRETE ABOVE THE MEMBERS, BUCKLING FAILURES OR DISINTEGRATION OF THE CONCRETE. LONGITUDINAL REINFORCEMENT IN SMALL AMOUNTS, 0.11 PERCENT OR LESS, SHOULD BE USED WITH CAUTION IN PAVEMENTS SUBJECTED TO HEAVY TRUCK TRAFFIC. /AUTHOR/

  • Supplemental Notes:
    • Vol 34, pp 34-56, 19 FIG, 7 TAB, 11 REF
  • Authors:
    • Cashell, H D
    • Teske, W E
  • Publication Date: 1955

Media Info

  • Monograph Title: Proceedings of the Thirty-Fourth Annual Meeting of the Highway Research Board, Washington, D.C., January 11-14, 1955
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00209461
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Jun 5 1972 12:00AM