AUTOMATIC IMPACT COMPACTION APPARATUS

A laboratory evaluation of a mechanical impact soil compaction apparatus is reported. Comparisons of manual and mechanical procedures are made for test maximum soil density at optimum moisture content. Variations in test results between T.M. No. Calif. 216 and ASTM 1557-70 with the manual procedure and the mechanical compactor are discussed. Limits of variation between the mechanical compactor and the manual procedure are also presented. Compactor specifications and proposed methods for equipment calibration, operator certification, and laboratory determination of maximum wet density and relative compaction are given. It was concluded that the use of the mechanical impact compactor in conjunction with the manual procedure is feasible.

• Corporate Authors:

  California Department of Transportation

  Transportation Laboratory
  5900 Folsom Boulevard
  Sacramento, CA  United States  95819

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Hatano, M
  • Lister, B L
  • Hirsch, A D
  • HANNON, J B
  • Forsyth, R A
• Publication Date: 1976-12

Media Info

• Pagination: 99 p.

Subject/Index Terms

• TRT Terms: Calibration; Clay soils; Concrete arch culverts; Deformation; Machinery; Manual transmissions; Moisture content; Soil compaction; Soil densification; Soil tests; Specifications; Wet density
• Geographic Terms: California
• Old TRIS Terms: Compacting equipment; Mechanical drive; Mechanical equipment; Soil compacting
• Subject Areas: Construction; Geotechnology; Highways;

Filing Info

• Accession Number: 00166496
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: FHWA-CA-TL211217662 Final Rpt., 632112
• Files: NTIS, TRIS, USDOT, STATEDOT
• Created Date: Oct 29 1978 12:00AM