AASHTO LRFD Design, Installation, and Standard Practice of Testing for Cured In-Place Pipe Liners

State departments of transportation (DOTs) are increasingly using trenchless strategies to rehabilitate and repair aging infrastructure within urbanized areas. Performing pipe repairs to existing systems, as compared to pipe replacement, significantly reduces the construction time and maintenance of traffic operations and roadway reconstruction. This provides increased public safety and cost savings to the state DOTs. One of the most common pipe rehabilitation methods is cured in-place pipe (CIPP) liners. CIPP liners are a trenchless technology that provides a method to structurally rehabilitate existing pipes and conduits with minimal impact to the traveling public. The liner consists of a resin-impregnated material that is inserted into the existing damaged host pipe. Currently, there is insufficient information available to ensure the CIPP liner possesses the properties and durability of the expected life span of this repair strategy. Pipe owners and CIPP contractors need design guide and testing standards for CIPP pipe rehabilitation repair. The objectives of this research are to develop (1) an American Association of State Highway and Transportation Officials (AASHTO) guide for design and installation of CIPP liners for structural rehabilitation of existing pipelines and conduits including design examples to demonstrate the application of the guide and (2) an AASHTO standard practice for test methods for CIPP liner technology. The AASHTO guide for design of CIPP liners shall be based on the Load and Resistance Factor Design (LRFD) method. At the minimum, the AASHTO standard practice for CIPP liner technology shall include: (1) a laboratory test method to verify the proposed structural capacity of rehabilitated conduits using CIPP liner technology, (2) an accelerated laboratory test method to predict liner service life, and (3) a laboratory test method for the different materials for liner and resin, and curing methods.

• Record URL:
  http://apps.trb.org/cmsfeed/TRBNetProjectDisplay.asp?ProjectID=5608
• Supplemental Notes:
  • Contract to a Performing Organization has not yet been awarded. Phase I and II were completed by Golder & Associates under the original award for NCHRP 18-20. Pending a new contract to complete the remaining phases.

Language

• English

Project

• Status: Proposed
• Funding: $460100
• Contract Numbers:

  Project 18-20(01)

• Sponsor Organizations:

  National Cooperative Highway Research Program

  Transportation Research Board
  500 Fifth Street, NW
  Washington, DC  United States  20001

  American Association of State Highway and Transportation Officials (AASHTO)

  444 North Capitol Street, NW
  Washington, DC  United States  20001

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Project Managers:

  Abu-Hawash, Ahmad

• Start Date: 20240819
• Expected Completion Date: 0
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Cured in place pipe; Guidelines; Linings; Pipe; Rehabilitation; Repairing; Service life; Test procedures
• Identifier Terms: American Association of State Highway and Transportation Officials
• Subject Areas: Maintenance and Preservation; Pipelines;

Filing Info

• Accession Number: 01927528
• Record Type: Research project
• Source Agency: Transportation Research Board
• Contract Numbers: Project 18-20(01)
• Files: TRB, RIP
• Created Date: Aug 20 2024 9:39AM