SPRAYED FIBROUS CONCRETE TUNNEL SUPPORT

A report is given on the use of sprayed stainless steel fibrous concrete as a tunnel support with particular reference to work on the Corsington Aqueduct project in Derbyshire. A description is given of the proposed aqueduct which, running through various ground conditions, will be generally lined with smooth faced concrete segment with an additional 2 M diameter steel pipe where it is necessary to contain the head of water pressure. Details are given of the problems encountered and the trials carried out using shotcrete fibrous concrete where this was thought a better solution. The fibrous concrete is a dry mix with water added at the nozzle of the spraygun and 25 mm stainless steel fibres introduced at the mixing stage. Alternative aggregate sizes were tried and at one stage a steel mesh. The results of flexural strength trials with varying percentages of fibre are given and other projects outlined where the method has been used, including a main surface water sewer in Derby. (TRRL)

  • Availability:
  • Corporate Authors:

    Plenum Publishing Corporation

    233 Spring Street
    New York, NY  United States  10013

    Plenum Publishing Corporation

    233 Spring Street
    New York, NY  United States  10013
  • Authors:
    • BARFOOT, J
  • Publication Date: 1983-11

Media Info

  • Features: Photos;
  • Pagination: 2 p.
  • Serial:
    • CONCRETE
    • Volume: 17
    • Issue Number: 11
    • Publisher: THE CONCRETE SOCIETY
    • ISSN: 0010-5317

Subject/Index Terms

Filing Info

  • Accession Number: 00382818
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Apr 30 1984 12:00AM