ASTM F1743-22 PDF

Overview

ASTM F1743-22 is the Standard Practice for Rehabilitation of Existing Pipelines and Conduits by Pulled-in-Place Installation of Cured-in-Place Thermosetting Resin Pipe (CIPP). Developed by ASTM International, this practice addresses procedures for reconstructing pipelines and conduits ranging from 2 inches to 96 inches (5 cm to 244 cm) in diameter using a resin-impregnated fabric tube that is pulled into place, secondarily inflated, and cured to form a new, continuous, tight-fitting pipe within the existing conduit. This trenchless technology is designed to extend the service life of gravity and pressure pipes, such as sanitary sewers, storm sewers, process piping, electrical conduits, and ventilation systems, with minimal surface disruption.

Key Topics

• Scope and Applicability

  • Covers procedures for rehabilitation of pipelines and conduits using pulled-in-place CIPP methods.
  • Applies to diameters from 2 in. to 96 in.
  • Suitable for gravity and pressure applications-including sanitary sewers, storm sewers, and industrial process pipes.

• Installation Process

  • Involves pulling a resin-impregnated flexible fabric tube into the pipe.
  • Uses hydrostatic head or air pressure for inflating the tube via a calibration hose.
  • Multiple curing methods: heated water, steam, or photoinitiated reaction.

• Material Requirements

  • Specifies the use of compatible resins (such as isophthalic polyester, vinyl ester, or epoxy resins) and fabric tubes.
  • Requires minimum strength and chemical resistance properties for long-term performance.
  • Calibration hoses may be removable or permanent, depending on design.

• Quality Control and Inspection

  • Recommends pre- and post-installation inspection using CCTV or direct access.
  • Includes testing for physical properties (flexural, tensile strength) and chemical resistance.
  • Addresses acceptance criteria for wall thickness, structural integrity, leakage, and delamination.

• Safety and Environmental Considerations

  • Adherence to relevant safety and environmental regulations is required.
  • Users must assess and mitigate hazards such as toxic vapors, confined space risks, and others specific to installation environments.

Applications

The ASTM F1743-22 standard offers practical solutions for pipeline rehabilitation where open-trench replacement is disruptive or impractical. Key application areas include:

• Municipal and Industrial Rehabilitation
  • Restores aging or damaged infrastructure, such as wastewater and stormwater conduits, without extensive excavation.
• Process and Utility Piping
  • Extends service life of pipes carrying industrial fluids or utilities, maintaining system integrity and reliability.
• Electrical and Ventilation Conduits
  • Provides structural renewal for critical, hard-to-access conduits while minimizing downtime and surface restoration work.

By implementing this standard, asset owners achieve significant cost savings, reduce environmental impact, and minimize disruption to surrounding communities and businesses.

Related Standards

For complete and compliant pipeline rehabilitation projects, ASTM F1743-22 should be used in conjunction with other relevant standards, including:

• ASTM F1216: Practice for Rehabilitation of Existing Pipelines and Conduits by the Inversion and Curing of a Resin-Impregnated Tube
• ASTM D5813: Specification for Cured-In-Place Thermosetting Resin Sewer Piping Systems
• ASTM D790: Test Methods for Flexural Properties of Plastics
• ASTM D638: Test Methods for Tensile Properties of Plastics
• ASTM D543: Practices for Evaluating the Resistance of Plastics to Chemical Reagents
• ASTM C1920, AWWA M28, and NASSCO Recommended Specifications

These related standards provide further details on material selection, installation methods, and performance testing, ensuring a robust, high-quality rehabilitation result using cured-in-place pipe (CIPP) technologies.

Keywords: ASTM F1743-22, pipeline rehabilitation, cured-in-place pipe, CIPP, trenchless technology, pulled-in-place installation, resin-impregnated fabric tube, pipeline inspection, sewer rehabilitation, conduit renewal, pipeline standards.