VIBRATORY COMPACTION IN PRE-TESTING FOR CEMENT STABILIZATION OF GRAVEL ROADS

VIBRATIONSPACKNING VID FOERPROVNING INFOER CEMENTSTABILISERING AV GRUSVAEGAR

A vibratory compaction method was examined to find if it could replace, wholly or partly the conventional AASHO T180 method in pretesting road gravel for cement stabilization, and to find what advantages the method may offer. The soil is compacted in a 152 mm dia. Sample cylinder (capacity 2.5 cu dm) with a motor driven vibrating hammer assembly weighing 35 kg at a frequency of 50 hz. Each of two consecutive layers is vibrated for 2 minutes. Three materials of different grading and optimum bulk density were tested, and the differences in the results as to recommended cement content, moisture content and maximum dry density were so small as to be negligible. Suggested improvements to the apparatus are a lifting device for the hammer assembly and automatic timing, replacement of the steel mould by lightmetal, coating of the mould with plastic to facilitate sample removal, and rubber packing on the collar to reduce noise. /TRRL/

  • Corporate Authors:

    Royal Institute of Technology, Sweden

    Valhallavagen 79
    Stockholm,   Sweden  100 44
  • Authors:
    • Thysell, B
    • Oesterland, B
  • Publication Date: 1976

Language

  • Swedish

Media Info

  • Features: Figures; Photos; References; Tables;
  • Pagination: 76 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00145424
  • Record Type: Publication
  • Source Agency: Swedish National Road and Traffic Research Institute
  • Report/Paper Numbers: Thesis
  • Files: ITRD, TRIS
  • Created Date: Apr 27 1977 12:00AM