Structural Design Methodology for Spray Applied Pipe Liners in Gravity Storm Water Conveyance Conduits (TPF-5(356))

Spray applied pipe liners is a trenchless technology that provides a method to structurally rehabilitate concrete and metal gravity storm water conveyance conduits with minimal impact to the travelling public. The liner consists of a cementitious or resin based material that is applied in an existing host storm water conveyance conduit via a centrifugal remote applicator or by manual application. Sufficient soil support and stabilization of the host conduit is required prior to placement of the spray applied liner. The liner will provide the structural load carrying capacity without the requirement to adhere to the host conduit. No single structural design methodology for a spray applied pipe liner currently exists. Vendors either apply design equations outlined in ASTM F1216, which are for Cured In Place Pipe (CIPP), or they use a variety of design approaches and conservatively select the maximum pipe liner material thickness. Several state departments of transportation (DOTs) have implemented structural spray applied pipe liners despite the lack of a national design standard or with the understanding that they will be designed according to CIPP design equations. Research objectives include: (1) Recommend a design methodology for both cementitious and resin based spray applied pipe liners for structural rehabilitation of gravity storm water conveyance conduits. (2) Recommend a laboratory test method to verify the proposed structural design for conduits that have been rehabilitated using the spray applied pipe liner technology. (3) Recommend an accelerated laboratory methodology to determine the liner material durability. (4) Recommend laboratory material testing for both cementitious and resin based materials.


  • Status: Active
  • Contract Numbers:


  • Sponsor Organizations:

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Managing Organizations:

    Ohio Department of Transportation

    Research Program
    1980 West Broad Street
    Columbus, OH  United States  43223
  • Project Managers:

    Jones, Cynthia

  • Performing Organizations:

    University of Texas at Arlington

    Box 19308
    Arlington, TX  United States  76019-0308
  • Principal Investigators:

    Najafi, Mohammad

  • Start Date: 20171220
  • Expected Completion Date: 20191220
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01653801
  • Record Type: Research project
  • Source Agency: Ohio Department of Transportation
  • Contract Numbers: 31347
  • Files: RiP, STATEDOT
  • Created Date: Dec 18 2017 10:12AM