NOTES ON SIMPLE CONDUCTIVITY AND PH MEASUREMENTS AS INDICATORS OF THE PRESENCE OF DELETERIOUS SOLUBLE SLATS IN BASE-COURSES

THE CONDUCTIVITY AND PH METHODS USED FOR THE DETECTION OF SOLUBLE SALTS BY ROAD AUTHORITIES IN SOUTH AFRICA ARE DESCRIBED TOGETHER WITH SOME EXPERIMENT IN CONNECTION WITH THEIR APPLICATION TO CALCRETES. THE METHODS INCLUDE THE SATURATED SOIL PAST CONDUCTIVITY METHOD AND THE SLIGHTLY LONGER BUT MORE ACCURATE SATURATION EXTRACT METHOD. TENTATIVE MINUS QUARTER INCH SOIL PAST CONDUCTIVITY LIMITS FOR BASE-COURSE OF 3.5 AND 0.6 MMHOS/CM ARE SUGGESTED FOR SODIUM CHLORIDE AND SODIUM SULPHATE AND MAGNESIUM SULPHATE RESPECTIVELY. /RRL/

  • Supplemental Notes:
    • Internal RePT RS /23/68, PP 24, 3 FIG, 15 TAB, 20 REF
  • Corporate Authors:

    Nat Inst Road Research /S Africa

    ,    
  • Authors:
    • Netterberg, F
  • Publication Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 00229393
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: TRIS
  • Created Date: May 10 1971 12:00AM