COMPACTION AND MOISTURE CONTROL

The report describes the various roller types used in the compaction of subgrade and base course materials. It advises the suitability of each type for the compaction of different materials commonly encountered in road construction. Methods of moisture control during compaction in the field are presented. The principles of compaction are discussed. Tests to determine moisture content, dry density and soil strength are described and the relationship between these properties is discussed. A description is given of the use of a trickle feed system for the addition of water to material in a borrow pit or stockpile prior to compaction on the road or embankment. The typical layout of a trickle feed system used by the Main Roads Department of Western Australia is included. Experience with trickle feed systems has indicated that they have many advantages over the conventional practice of adding water by truck or water cart. These advantages include, improved control of moisture content, easier stockpiling, a reduction in dust, conservation of water and energy, added flexibility in resources allocation, a reduction of cartage losses and low capital cost (a). (TRRL)

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  • Supplemental Notes:
    • Australisn Road Research Board Regional Symposium, 17th, Perth, W.A. 1979.
  • Corporate Authors:

    ARRB Group Limited

    500 Burwood Highway
    Vermont South, Victoria    3133
  • Authors:
    • Cocks, G C
  • Publication Date: 1979

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Subject/Index Terms

Filing Info

  • Accession Number: 00311360
  • Record Type: Publication
  • Source Agency: ARRB Group Limited
  • ISBN: 0 86910 353 9
  • Files: ITRD, TRIS, ATRI
  • Created Date: Jul 22 1980 12:00AM