REPORT OF COMMITTEE ON WARPING OF CONCRETE PAVEMENTS

THIS REPORT IS A RECORD OF STUDIES MADE TO FIND THE CAUSE, MEANS OF PREVENTION, AND CORRECTION OF WARPING OF CONCRETE PAVEMENT. THE DATA WERE OBTAINED FROM OBSERVATION OF PAVEMENTS AND FROM FIELD AND LABORATORY TESTS. DESCRIPTIONS ARE INCLUDED OF THE CURRENT PROCEDURES FOLLOWED IN THE PLACING OF SOIL IN SUBGRADES SO THAT THE WARPING OF PAVEMENTS WILL BE MINIMIZED. THE DATA INDICATE THAT WARPING IS CAUSED BY AN EXTERNAL FORCE PRODUCED BY DIFFERENTIAL SWELL, OR SHRINKAGE AND SUBSEQUENT SWELL, OF SUBGRADE SOIL. SOIL EXPANSION RESULTS FROM ABSORPTION OF WATER ENTERING THROUGH LEAKY JOINTS, CRACKS AND AT PAVEMENT EDGES. IN MINNESOTA, THE SWELL USUALLY DEVELOPS FROM THE FORMATION OF ICE LENSES, BUT IN CALIFORNIA, KANSAS, MISSOURI AND TEXAS, FROST ACTION HAS ONLY A MINOR EFFECT AND THE VOLUME CHANGE OCCURS LARGELY BECAUSE OF THE EXPANSIVE CHARACTERISTICS OF THE SOIL ITSELF. /AUTHOR/

  • Supplemental Notes:
    • Vol 25, pp 199-250, 27 FIG, 13 TAB
  • Authors:
    • Allen, H
  • Publication Date: 1946

Media Info

  • Monograph Title: Proceedings of the Twenty-Fifth Annual Meeting Held at Skirvin Hotel, Oklahoma City, Oklahoma, January 25-28, 1946
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00207313
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Jun 22 1971 12:00AM