FROST ASSESSMENT OF NEW TECHNIQUES IN CONCRETE SURFACINGS

THE STUDY PRESENTED IS IMPORTANT BECAUSE THE HEAVY TRAFFIC CARRIED BY THE MOTORWAY IS OF THE SAME ORDER AS THAT CONCERNED IN THE AASHO ROAD TEST. THE SUPERFICIAL BEHAVIOR OF SLABS IS CHARACTERIZED PRIMARILY BY THE GENERAL BLACKENING OF THE SURFACE, AND THEN BY THE APPEARANCE OF CAVITIES PRODUCED BY FOREIGN BODIES. IT IS ALSO NECESSARY TO NOTE THE WEAR OF REPAIRED AREAS, AS THE MEASURE OF ROUGHNESS IS AN INDICATION OF THE EFFECT OF TRAFFIC AND WEATHER. AT PRESENT THE SAWED LONGITUDINAL JOINT IS ENTIRELY SATISFAC- TORY AND IS PREFERRED TO LAYING THE CARRIAGEWAY IN TWO STRIPS OR THE INSERTION OF PLASTIC JOINTING MATERIAL. CONCERNING TRANSVERSE CONTRACTION JOINTS, THE AUTHOR DISCUSSES TWO PROBLEMS' THAT OF REFILLING /WHICH REMAINS TO BE SOLVED/, AND THAT OF THE RESISTANCE AND DURABILITY OF THE JOINTS UNDER LOAD. DEFLECTION MEASUREMENTS TAKEN SO FAR HAVE SHOWN SATISFACTORY RESULTS. SOME SPECIAL PROBLEMS ARE NOTED' REBUILDING HARD SHOULDERS AT THE END OF A YEAR OR TWO TO MAKE UP FOR DIFFERENTIAL SUBSIDENCE, SPECIAL ATTENTION TO BE GIVEN TO THE CONSTRUCTION OF EXPANSION JOINTS IN THE VICINITY OF STRUCTURES AND THE POSSIBILITY OF BLANKETING /NECESSARY ON STRUCTURES/ THE RATTLE OF SLABS.

  • Supplemental Notes:
    • Vol 35, No 398, PP 53-60, 10 PHOT, 5REF
  • Authors:
    • REVERDY, G
  • Publication Date: 1965-4

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Filing Info

  • Accession Number: 00212164
  • Record Type: Publication
  • Source Agency: Road Research Laboratory /UK
  • Files: TRIS
  • Created Date: Jun 15 1994 12:00AM