The article discusses methods of achieving compaction in soils, granular materials and bituminous materials by the use of vibratory equipment. The term dynamic compaction has evolved as an expression relative to compacting a material by vibratory means and is defined by the ASTM as "increasing the density of soil by vibratory or impact loads". The definition covers densification by vibrating rollers, plate compactors, tampers, rammers, drop weights and internal vibration equipment. The article traces the development of early Proctor theories and testing methods to determine soil density. The Proctor test measures the effect of varying soil moisture content relative to its density enabling a working moisture content in terms of compaction to be obtained. A gradation curve illustrates the results of tests with a vane borer on soil samples which shows the effect of vibration on soil particles when being compacted. The article discusses the characteristics and selection of vibratory plant and its use in various applications. /TRRL/

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  • Corporate Authors:

    Morgan-Grampian (Professional Press) Limited

    Morgan-Grampian House, Calderwood Street
    London SE18 6QH,   England 
  • Authors:
    • Latham, J D
  • Publication Date: 1978-5

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Filing Info

  • Accession Number: 00189536
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Apr 12 1979 12:00AM