SOIL MOISTURE UNDER THE CONCRETE PAVEMENT OF AN AIRPORT

DURING THE SPRING OF 1949, SAMPLES WERE TAKEN OF THE EARTH LAYERS UNDER AND ADJACENT TO THE CONCRETE PAVEMENT OF AN 80 METER WIDE RUNWAY AND A 15 METER TAXI DRIVE. THE AIRPORT IS SITUATED ON A SLIGHTLY INCLINED RIVER DEPOSIT. THE CONCRETE PAVEMENT IS ABOUT 15 CM. THICK. THE PAVEMENT IS IN GOOD CONDITION AND THE JOINTS FILLED WITH ASPHALT. THE SAMPLES ARE TAKEN ALONG AN EXPANSION JOINT ACROSS THE PAVEMENT OF THE RUNWAY AND TAXI DRIVE. THE MOISTURE ANALYSES SHOW THAT THE WATER CONTENT OF THE GROUND BENEATH THE CONCRET PAVEMENT IS CONSIDERABLY LESS THAN WHAT CORRESPONDS TO FULL CAPILLARY SATURATION. IN DISTRICTS WITH WEATHER CONDITIONS LIKE THOSE IN NORWAY, THE RESULTS INDICATE THE JUSTIFICATION OF DETERMINING THE BEARING CAPACITY OF THE GROUND FOR A MOISTURE CONTENT CORRESPONDING TO A CERTAIN PERCENTAGE OF THAT WITH FULL CAPILLARY SATURATION. HOWEVER, THE INVESTIGATION IS TOO LIMITED TO PERMIT DRAWING OF SPECIFIC CONCLUSIONS, PARTICULARLY WITH REGARD TO WHAT PERCENTAGE OF THE CAPILLARY SATURATION COULD BE USED IN ESTIMATING THE BEARING VALUE OF DIFFERENT CLASSES OF SOIL.

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Filing Info

  • Accession Number: 00237845
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Aug 26 1970 12:00AM