The author describes the in situ form method of renovating underground pipework. A tube or bag to fit exactly to the internal dimensions of the pipe to be lined is manufactured from a polyester needled felt. The felt tube is impregnated with a resin mixed with a catalyst. The mouth of the bag is clamped over an inversion ring, the lining is filled with water and turned inside out into the sewer, depositing a layer of felt and resin on the inner wall of the pipe. The water is circulated through a boiler and maintained at a temperature of 70-80 degrees C to cure the resin. Pipes with diameters in the range 100 mm to 1200 mm can be renovated by means of the process, lengths of over 300 m having been done in one inversion. The method of dealing with incoming lateral pipes and methods of cutting the tube are outlined. (TRRL)

  • Availability:
  • Corporate Authors:

    Plenum Publishing Corporation

    233 Spring Street
    New York, NY  United States  10013
  • Authors:
    • Roper, I A
  • Publication Date: 1985-4

Media Info

  • Features: Figures; Photos;
  • Pagination: p. 11-12
  • Serial:
    • Volume: 19
    • Issue Number: 4
    • ISSN: 0010-5317

Subject/Index Terms

Filing Info

  • Accession Number: 00396957
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Aug 25 2004 2:39AM