A STUDY OF BULK DENSITY AND WATER IN A SWELLING SOIL

In this examination of the character of the contraction of an undistrubed field soil, models for three-dimensional and undimensional contraction were set up from which changes in bulk density with moisture content could be predicted and the predictions compared with measured values. Comparison of the changes predicted by the models with the changes measured in a field soil in the 0- to 3-inch and 6- to 9-inch layers, revealed that the swelling for soils wetter than wilting is normal, and that within this moisture range two types of volume change occur, a unidimensional phase and a three-dimensional equidimensional phase, which are separated by a fairly distinct moisture point. There are no stable voids in the soil which loose water in either phase, and the soil has no field capacity as normally defined. The theory is discussed and the assumptions made are set forth. Details are given of the experimental design and methods, and the results are presented and discussed.

  • Corporate Authors:

    Williams and Wikins Company

    428 East Preston Street
    Baltimore, MD  USA  21202
  • Authors:
    • Fox, W E
  • Publication Date: 1964-11

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 307-316
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00081586
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 19 1975 12:00AM