INVESTIGATION OF MUD JACK SOILS

SUCCESS IN RAISING PAVEMENT SLABS PERMANENTLY BY THE MUD-JACK PROCESS DEPENDS TO A LARGE DEGREE UPON THE CHARACTERISTICS OF THE MATERIALS USED. THE EFFECTS OF TEXTURE, AMOUNT OF ORGANIC MATERIAL PRESENT, AMOUNT OF CEMENT USED AND AMOUNT OF WATER NEEDED FOR WORKABILITY UPON THE SHRINKAGE PROPERTIES OF THE SOIL APPEAR TO BE THE SIGNIFICANT FACTORS. TWO HUNDRED AND FIFTY SAMPLES OF SOIL USED WITH MUD-JACKS OF BOTH THE PISTON AND COMPRESSED AIR TYPE WERE ANALYZED AND THE RANGE IN SATISFACTORY GRADING FOR EACH TYPE DETERMINED. IN GENERAL, COARSER SOIL CAN BE USED WITH THE COMPRESSED AIR JACK THAN WITH THE PISTON JACK. FROM A SERIES OF LABORATORY TESTS THE EFFECTS OF TEXTURE, ORGANIC CONTENT, WATER CONTENT AND CEMENT CONTENT UPON SHRINKAGE, WORKABILITY AND STABILITY WERE STUDIED, RESULTING IN DIAGRAMS SHOWING THE RELATION BETWEEN AMOUNT OF CEMENT, ORGANIC CONTENT AND SHRINKAGE. IT APPEARS TO BE DESIRABLE TO USE AS COARSE A SOIL CONTAINING AS LITTLE ORGANIC MATERIAL AS POSSIBLE. UNLESS THE AMOUNT OF ORGANIC MATERIAL IS LIMITED, THE USE OF THE CUSTOMARY SMALL AMOUNT OF CEMENT (5 PERCENT) WILL HAVE LITTLE EFFECT IN REDUCING SHRINKAGE SINCE HIGH ORGANIC CONTENT REQUIRES AN EXCESSIVE AMOUNT OF WATER FOR WORKABILITY. /AUTHOR/

  • Supplemental Notes:
    • Vol 12, Pt1, PP 352-362, 6 FIG
  • Authors:
    • Benkelman, A C
  • Publication Date: 1933

Media Info

  • Monograph Title: Proceedings of the Twelfth Annual Meeting of the Highway Research Board Held at Washington, D.C. December 1-2, 1932. Part I: Reports of Research Committees and Papers
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00218647
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Jun 1 1971 12:00AM