A LABORATORY STUDY ON THE CAPILLARY RISE OF MOISTURE THROUGH SANDS

ONE OF THE EFFECTIVE METHODS OF CHECKING CAPILLARY RISE OF MOISTURE FROM THE SUBGRADE TO ROAD PAVEMENT IS PROVISION OF A SAND LAYER OVER THE SUBGRADE BEFORE PUTTING THE ROAD CRUST. SUCH A TREATMENT BECOMES IMPERATIVE WHEN IN ADDITION, THE SUBGRADE IS IMPREGNATED WITH DETRIMENTAL SALTS. THE THICKNESS OF THE SAND LAYER REQUIRED TO COMPLETELY CUT OFF CAPILLARY RISE OF MOISTURE CAN BE CALCULATED FROM A NUMBER OF FORMULAE. THESE FORMULAE ARE FOUND TO GIVE DIFFERENT VALUES EVEN FOR A SAND OF THE SAME MEAN DIAMETER. THE PRESENT PAPER AIMS AT A CRITICAL EXAMINATION OF THE VARIOUS FORMULAE WITH A VIEW TO ACCOUNT FOR THE DIFFERENCES IN VALUES OF THICKNESS OBTAINED FROM EACH AND TO DETERMINE THE MOST APT CIRCUMSTANCES UNDER WHICH EACH FORMULA COULD BE CORRECTLY APPLIED. /AUTHOR/

  • Supplemental Notes:
    • No 110, 18 PP, 5 FIG, 5 TAB, 9 REF
  • Corporate Authors:

    Central Road Research Institute

    Delhi-Mathura Road
    New Delhi,   India  110020
  • Authors:
    • Uppal, H L
    • MALHOTRA, B R
  • Publication Date: 1970

Subject/Index Terms

Filing Info

  • Accession Number: 00238023
  • Record Type: Publication
  • Files: TRIS, ATRI
  • Created Date: May 1 1972 12:00AM