PROGRESS REPORT OF COMMITTEE ON CURING OF CONCRETE PAVEMENT SLABS

A STUDY OF AVAILABLE DATA IS MADE WITH RESPECT TO STRENGTH, SURFACE SCALING, AND VOLUME CHANGES AS AFFECTED BY VARIOUS CURING METHODS, TOGETHER WITH TENTATIVE CONCLUSIONS DRAWN BY THE COMMITTEE. THE COMMITTEE CONCLUDES THAT CALCIUM CHLORIDE SURFACE APPLICATION USED AS A CURING METHOD UNDER NORMAL CONDITIONS IS NOT A PRIMARY CAUSE OF SCALING. IF CONDITIONS CONDUCIVE TO SCALING ARE PRESENT, THE SCALE WILL PROBABLY OCCUR UNDER EITHER EARTH AND WATER OF<R CALCIUM CHLORIDE SURFACE METHODS OF CURING. SCALING IS NOT AN IMPORTANT FACTOR AS FAR AS CALCIUM CHLORIDE SURFACE CURING IS CONCERNED. DATA INDICATE THAT CLIMATIC CONDITIONS INFLUENCE THE EXTENT OF SCALING. THE PERCENTAGE OF SCALING INCREASES AS THE SILT CONTENT OF THE FINE AGGREGATE INCREASES WHEN THE FINISHING OPERATIONS AND GENERAL CONSRUCTION METHODS ARE SIMILAR. TOO MUCH AND TOO LATE FINISHING ARE CONTRIBUTORY CAUSES OF SCALING BUT ARE INDEPENDENT OF THE LAITANCE REMOVAL OPERATION AND MATERIALS USED. THE EXTENT OF SCALING WAS GREATER WHERE HAND FINISHING WAS EMPLOYED THAN WHERE MECHANICAL FINISHEDS WERE USED. VOLUME CHANGES AS AFFECTED BY CURING METHODS ARE DISCUSSED. TTHE COMMITTEE CONCLUDES THAT THE VOLUME CHANGES WITH THE USE OF WET EARTH, CALCIUM CHLORIDE SURFACE TREATMENT AND SODIUM SILICATE AS CURING AGENTS WERE NOT GREAT ENGOUGH TO MAKE THIS FACTOR A MATTER OF IMPORTANCE IN DECIDING UPON THEIR USE. DISCUSSERS POINT OUT THAT CURING INCREASES STRENGTH AND DURABILITY.

  • Supplemental Notes:
    • Vol 10, pp 370-408, 17 FIG, 8 TAB, 18 REF
  • Authors:
    • Lang, F C
    • Burggraf, F
    • Mattimore, H S
    • Clemmer, H F
    • Miller, H H
  • Publication Date: 1931

Media Info

  • Monograph Title: Proceedings of the Tenth Annual Meeting of the Highway Research Board Held at Washington, D.C. December 11-12, 1930
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00213756
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Jun 1 1971 12:00AM