PRESTRESSED ROAD SECTION IN A PROVINCIAL HIGHWAY /IN DUTCH/

THE CONSTRUCTION OF AN EXPERIMENTAL PRESTRESSED ROAD SECTION, 360 M. IN LENGTH, IS DESCRIBED. A SPECIAL JOINT STRUCTURE, HAVING A BOTTOM SLAB WITH A RAISED RIDGE, WAS USED. THE PRESTRESSED SLABS, 120 M. LONG AND 15 CM. THICK SAND WITH A SLIDING LAYER OF ROAD PAPER AND PLASTIC FOIL. CABLES OF 1/2 IN. DIAMETER, SPACED 30 CM. APART IN CHANNELS 20 MM. WIDE, WERE PRESTRESSED BY MEANS OF A SPECIALLY SHAPED JACK. THE USE OF PRE-FABRICATED CONCRETE HEAD-BEAMS PERMITTED THE APPLICATION OF AN INITIAL STRESS OF 70 TO 80 KG PER SQ. CM. AS EARLY AS 24 HOURS AFTER THE SLAB CONCRETE HAD BEEN POURED. ABOUT A MONTH LATER THE FINAL STRESS OF 130 KG PER SQ. CM. WAS ATTAINED, AND THE RIDGES ON THE BOTTOM SLABS WERE THEN CONSTRUCTED. THE JOINTS WERE SEALED WITH PREFORMED RUBBER STRIP. /SWOV/ PREFORMED RUBBER STRIP. /SWOV/

  • Availability:
  • Supplemental Notes:
    • Vol 20, No 9, 368PP, 1 FIG, 2 PHOT
  • Corporate Authors:

    NV'T Koggeschip

    P.O. Box 1198
    Amsterdam C,   Netherlands 
  • Publication Date: 1968-9

Media Info

  • Serial:
    • Cement
    • Publisher: Vereniging Nederlandse Cementindustrie
    • ISSN: 0008-8811

Subject/Index Terms

Filing Info

  • Accession Number: 00205621
  • Record Type: Publication
  • Source Agency: Road Research Laboratory /UK
  • Files: TRIS
  • Created Date: Feb 10 1972 12:00AM