A STUDY ON MOISTURE MOVEMENT IN ALLUVIAL SOILS UNDER ROAD SURFACES FOR ECONOMICAL DESIGN OF PAVEMENTS

MOST OF THE AREAS IN NORTHERN INDIA HAVE HIGH WATER TABLES WHICH RANGE FROM 4 TO 9 FT DURING THE YEAR. IN THE ABSENCE OF ANY AUTHENTIC INFORMATION ABOUT THE MAXIMUM MOISTURE CONTENTS ATTAINED BY THE SUBGRADES, THE DESIGN OF ROAD PAVEMENTS IN SUCH AREAS IS CARRIED OUT FOR SATURATED CONDITIONS. THIS WILL ADVERSELY AFFECT THE COST OF CONSTRUCTION IF, IN ACTUAL PRACTICE, THE SUBGRADE IS NOT SATURATED. THE PAPER DEALS WITH A FIELD STUDY ON THE MOISTURE CONTENT ATTAINED BY THE SUBGRADES AT DIFFERENT TIMES OF THE YEAR BOTH UNDER SURFACED AND UNSURFACED PAVEMENTS. THE RESULTS INDICATE THAT UNDER SEALED SURFACE THERE IS A TENDENCY FOR THE SUBGRADE MOISTURES FOR A DEPTH OF ABOUT 2 FT TO ATTAIN EQUILIBRIUM, IRRESPECTIVE OF THE WIDE VARIATIONS IN THE MOISTURE CONTENTS OF THE ADJOINING UNSURFACED AREA. THE MAXIMUM MOISTURES ATTAINED ARE WELL BELOW SATURATION UNDER THE SURFACED AREA. RESULTS FURTHER INDICATE THAT THE VERGE EFFECT TRAVELS TO A DISTANCE OF ABOUT 4 FT. /RRL/CA/

  • Supplemental Notes:
    • Vol 3, PapeR NO 214, PART 2, PP 1206-1214, 2 FIG, 3 TAB, 3
  • Authors:
    • Uppal, H L
  • Publication Date: 0

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Filing Info

  • Accession Number: 00232031
  • Record Type: Publication
  • Source Agency: Road Research Laboratory /UK
  • Files: TRIS
  • Created Date: Aug 15 2004 2:42AM