THREE-YEAR PERFORMANCE REPORT ON EXPERIMENTAL CONTINUOUSLY REINFORCED CONCRETE PAVEMENT IN ILLINOIS

THE PERFORMANCE OF THE EXPERIMENTAL CONTINUOUSLY REINFORCED CONCRETE PAVEMENT IN ILLINOIS DURING THE PERIOD SINCE ITS CONSTRUCTION IN 1947-48 IS PRESENTED. THE PERFORMANCE OF ALL THE TEST SECTIONS HAS BEEN HIGHLY SATISFACTORY AND COMPARES FAVORABLY WITH THAT OF THE ADJACENT 4 1/2 MI. OF STANDARD PAVEMENT BUILT AT THE SAME TIME BY THE SAME CONTRACTOR. SOME PUMPING HAS OCCURRED, PRINCIPALLY AT EXPANSION JOINTS SEPARATING THE TEST SECTIONS, AT CONSTRUCTION JOINTS AND AT A RELATIVELY FEW TRANSVERSE CRACKS. THE AVERAGE INTERVAL BETWEEN TRANSVERSE CRACKS HAS BECOME PROGRESSIVELY SHORTER WITH AGE AND BEARS AN INVERSE RELATIONSHIP TO THE AMOUNT OF LONGITUDINAL STEEL. AVERAGE CRACK INTERVAL RANGES FROM 6 TO 16 FT. REPEATED MEASUREMENTS OF 60 REPRESENTATIVE TRANSVERSE CRACKS IN EACH TEST SECTION SHOW A TENDENCY FOR THE CRACKS TO BECOME WIDER WITH AGE. GENERALLY SPEAKING THE AVERAGE CRACK WIDTH IS GREATER THE LOWER THE PERCENTAGE OF LONGITUDINAL STEEL. AVERAGE CRACK WIDTH RANGES FROM 0.007 TO 0.021 IN. ALL THE TEST SECTIONS HAVE BECOME PROGRESSIVELY LONGER WITH AGE. THE PERMANENT GROWTH RANGES FROM ABOUT 2 IN. TO 3.6 IN. IN THOSE SECTIONS HAVEING A CONSIDERABLE AMOUNT OF LONGITUDINAL CRACKING, THE AMOUNT APPEARS TO BE PROPORTIONAL TO THE PERCENT OF LONGITUDINAL STEEL. SOME SPALLING HAS OCCURED AT BOTH LONGITUDINAL AND TRANSVERSE CRACKS BUT NOT TO A SERIOS EXTENT. IT APPEARS THAT SPALLING MAY BE A FUNCTION OF THE CRACK WIDTH, WITH MORE SPALLING AT THE WIDER CRACKS. /AUTHOR/

  • Supplemental Notes:
    • Vol 30, pp 45-61, 9 FIG, 1 TAB, 6 PHOT
  • Authors:
    • Russell, H W
    • Lindsay, J D
  • Publication Date: 1951

Media Info

  • Monograph Title: Proceedings of the Thirtieth Annual Meeting of the Highway Research Board Held at Washington, D.C., January 9-12, 1951
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00207328
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Jul 25 1971 12:00AM