FUNCTIONS OF STEEL REINFORCEMENT IN CONCRETE PAVEMENTS AND PAVEMENT BASES

INVESTIGATIONS OF STEEL REINFORCEMENT CARRIED ON BY THE HIGHWAY RESEARCH BOARD, 1924-1925, DISCLOSED BENEFITS FURNISHED BY REINFORCEMENT IN CONCRETE PAVEMENTS NOT READILY EXPLAINABLE BY EXISTING KNOWLEDGE ON REINFORCED CONCRETE. SUBSEQUENT STUDY HAS INDICATED THAT SOME OF THE BENEFITS FURNISHED BY REINFORCEMENT ARE DUE TO THE INFLUENCE IT EXERTS UPON THE INTERNAL STRESSES AND OTHER FACTORS WHICH AFFECT THE STRENGTH AND DURABILITY OF CONCRETE. IN THIS REPORT, THE MORE OR LESS INTRICATE PHENOMENA OCCURRING, BOTH DURING AND SUBSEQUENT TO THE HARDENING PERIOD OF CONCRETE, ARE BRIEFLY ANALYZED IN AN EFFORT TO EXPLAIN THESE BENEFITS. WHEN FIRST DEPOSITED ON THE SUBGRADE IN THE PLASTIC STATE, THE CONCRETE MAY SHRINK DUE TO LOSS OF MOISTURE AND SOLUTION OF CEMENT CONSTITUENTS. AFTER HARDENING IT MAY: SWELL DUE TO MOISTURE ABSORPTION; SHRINK DUE TO MOISTURE LOSS; EXPAND DUE TO RISE IN TEMPERATURE; CONTRACT DUE TO DROP IN TEMPERATURE; WARP DUE TO TEMPERATURES OR MOISTURE CONTENTS IN THE TOPS OF THE SLABS DIFFERING FROM THOSE IN THE BOTTOMS OF THE SLABS; DISTORT DUE TO NON-UNIFORM SUBGRADE SUPPORT; DEFLECT DUE TO TRAFFIC LOADS; OR BE SUBJECTED TO THE DISINTEGRATING INFLUENCE OF FROST OR OTHER DETRIMENTAL PHYSICAL OR CHEMICAL ACTION. THE FUNCTIONS OF STEEL REINFORCEMENT WITH RESPECT TO THE STRESSES CAUSED BY THESE PHENOMENA ARE EXPLAINED. /AUTHOR/

  • Supplemental Notes:
    • Vol 11, Pt 1, PP 271-311, 31 FIG, 1 TAB, 23 REF
  • Authors:
    • Hogentogler, C A
    • Willis, E A
    • Robeson, F A
    • Bradbury, R D
    • Gemeny, A L
    • Gonnerman, H F
  • Publication Date: 1932

Media Info

  • Monograph Title: Proceedings of the Eleventh Annual Meeting of the Highway Research Board Held at Washington, D.C. December 10-11, 1931. Part I: Reports of Research Committees and Papers
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00205818
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Jun 1 1971 12:00AM