Specification_Section_22_05_83.63.pdf

FY15 MD Saginaw FY15MDSAGINAW Amendment No. 2

SECTION 22 05 83.63

CURED-IN-PLACE PIPE (CIPP) LINING

08/10

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AMERICAN PETROLEUM INSTITUTE (API)

API Spec 13A (2010) Specification for Drilling-Fluid Materials

ASTM INTERNATIONAL (ASTM)

ASTM D543 (2006) Standard Practices for Evaluating the Resistance of Plastics to Chemical Reagents

ASTM D638 (2010) Standard Test Method for Tensile Properties of Plastics

ASTM D790 (2010) Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials

ASTM F1216 (2009) Standard Practice for Rehabilitation of Existing Pipelines and Conduits by the Inversion and Curing of a Resin-Impregnated Tube

ASTM F1743 (2008) Standard Practice for Rehabilitation of Existing Pipeline and Conduits by Pulled-In-Place Installation of Cured-In-Place Thermosetting Resin Pipe

(CIPP)

1.2 SYSTEM DESCRIPTION

Provide new cured-in-place pipe (CIPP) lining system for the Saginaw DMDF 24" effluent discharge pipe from MH-2 to outfall as indicated on the contract drawings complete and ready for operation.

Accomplish the reconstruction using a tube of one or more layers of flexible needle perforated felt or an equivalent non-woven perforated material, of specified length, and a thermo-set resin with physical and chemical properties appropriate for the application, in conformance with ASTM F1216. Submit product data for thermoset resin, liner materials.

Ensure all drilling fluids conform to API Spec 13A.

1.3 SUBMITTALS

Government approval is required for submittals with a "G" designation;

SECTION 22 05 83.63 Page 1 submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-03 Product Data

CIPP Liner equipment

CIPP Lining Tube; G, AOF

Pipe Thermoset Resin; G, AOF

SD-08 Manufacturer's Instructions

CIPP Manufacturer's Written Installation Instructions

SD-09 Manufacturer's Field Reports

Pipe Lining Installation Report; G, AOF

Pipe Pre-Lining Inspection DVD and Report; G, AOF

Pipe Post-Lining Inspection DVD and Report; G, AOF

PART 2 PRODUCTS

2.1 PIPE LINING MATERIALS

2.1.1 CIPP Lining Tube

Provide a liner tube consisting of one or more layers of flexible needle perforated felt or an equivalent non-woven perforated material, continuous in length with uniform wall thickness. Overlapping sections are allowed in the length of the liner. Ensure that the liner tube is capable of conforming to offset joints, bells, and disfigured pipe sections.

Provide an integrated bladder within the felt tube that is made from materials compatible with the felt and resin systems used and capable of withstanding the required installation pressure.

Accomplish the CIPP liner installation remotely using cables to pull the product into place. Fill the bladder with air for curing. The cured-in-place pipe is to provide a smooth bore interior that conforms to the existing pipe and eliminates water leakage from the pipe to the exterior environment.

2.1.2 Resin

Provide a resin impregnated, cured tube that is resistant to shrinkage, corrosion, oxidation, and is resistant to abrasion from solids, grit, sand in rainwater, and is solvent free. Use a resin with proven resistance to storm water and ultra-violet light (sunlight) at any stage prior to installation. Polyester, vinyl ester, or epoxy resins are acceptable as long as they meet or exceed the requirements set forth in this section.

Ensure the proposed resin system does not contain silicones, stereates, and/or natural waxes that would adversely affect the adhesives properties or any other chemical or physical properties of the CIPP liner.

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2.1.3 CIPP Properties

Provide CIPP with minimum chemical resistance requirements in accordance with ASTM D543. Conduct exposure to the chemical solutions listed in Table 1 at temperatures of up to 75 degrees F. Conduct this test for a minimum period of one month. Loss result can not exceed 20 percent of the initial structural properties.

TABLE 1 - CHEMICAL RESISTANCE REQUIREMENTS

Chemical Solution Concentration Percent

Tap Water (pH 6-9) 100.0

Nitric Acid 1.0

Sulfuric Acid 5.0

Gasoline 100.0

Vegetable Oil 100.0

Detergent or Soap 0.1

Ensure the CIPP meets the minimum structural properties listed in Table 2 below:

TABLE 2 - CIPP INITIAL STRUCTURAL PROPERTIES - ASTM F1743

Property ASTM Test Method Minimum Value

Tensile Strength ASTM D638 3,000 psi

Flexural Strength ASTM D790 4,500 psi

Short Term Flexural Modulus of Elasticity

ASTM D790 250,000 psi

Provide a cured liner with a light blue reflective internal wall color so that a clear detail CCTV inspection can be accomplished.

PART 3 EXECUTION

3.1 INSTALLATION

Provide installation of CIPP system, including materials, workmanship, fabrication, assembly, erection, examination, inspection, and testing in accordance with ASTM F1743, as supplemented and modified by CIPP manufacturer's written installation instructions.

3.1.1 Pipe Preparation

CCTV inspect the line and determine the overall condition of the pipe prior

SECTION 22 05 83.63 Page 3 to starting the Pre-conditioning of the pipe.

Perform pre-conditioning of the pipe section, including preparatory cleaning, corrosion removal, removal of grease buildup, or any other obstruction that may interfere with lining operations.

CCTV inspect the line immediately prior to lining and after the cleaning is complete to ensure that the pipe is ready for lining.

Upon completion of initial inspection, if it discovered that the existing pipe is in a condition other than "partially deteriated" as defined by ASTM F 1216-09, inform the COR immediately.

3.1.2 CIPP Thickness

CIPP shall be at a minimum 10.5mm thick.

3.1.3 CIPP Installation Procedure

3.1.3.1 Wet Out

Accurately calculate and measure the amount of resin and catalyst required. Thoroughly mix the resin and catalyst. Thoroughly saturate/impregnate the flexible felt tube with the pre-calculated amount of resin prior to installation. Handle the resin impregnated flexible tube to retard or prevent resin setting until it is ready for insertion.

3.1.3.2 Insertion

Install the liner/bladder system using the pull in place method. Pull the liner/bladder system to the specified location in the pipe. Inflate the bladder using compressed air to a pressure adequate to form the liner to tightly fit the internal circumference of the pipe and to cause the resin to migrate into pipe joints, voids and defects. Install the liner at low pressure (not to exceed 10 psi) to prevent initial or further damage to the host pipe.

3.1.3.3 Curing

Inflate the bladder or bladder/liner system using compressed air, steam, or hydrostatic pressure from hot water and leave the liner in place until the resin curing cycle is complete.

When the curing process is complete, release the pressure and pull out the inflation bladder if used. The cured composite liner is to remain in place within the host pipe. Ensure the cured-in-place pipe provides a smooth bore interior and conforms to the existing pipe. Ensure the tube is continuous in length, wall thickness, and is uniform. Reline any existing defects in the original pipe.

3.1.3.4 Finish

No barriers, coatings, or any material other than the cured liner tube/resin composite, specifically designed for desirable physical and chemical resistance properties, are to be left in the host pipe. Any materials used in the installation, other than the cured liner tube/resin composite, are to be removed from the pipe. Remove any cured liner tube/resin composite pipe left protruding from the service connection.

Ensure that the finished CIPP is continuous and free from visual defects

SECTION 22 05 83.63 Page 4 such as foreign inclusions, dry spots, pinholes, and delimitation.

3.1.4 Liner Inspection

Perform a final Closed-Circuit Television (CCTV) inspection to verify proper cure and integrity of the composite liner. Submit a DVD recording of the finished work and written documentation pertaining to the pipe lining installation.

3.2 DEVIATIONS

Should pre-installation inspection reveal conditions in the pipe to be substantially different than those used in the design of wall thickness, liner tube construction, liner tube length, or resin system; notify the Contracting Officer and provide a videotape recording of existing conditions and design data. Do not proceed without direction from Contracting Officer.

3.3 CLEAN-UP

After liner installation has been completed and accepted, clean the entire project area and restore the site to its original condition prior to the commencement of work. Dispose of all excess material and debris not incorporated into the permanent installation.

3.4 FINAL ACCEPTANCE

Upon completion, submit the DVD records of pre-lining inspection and post-lining inspection, along with the written report summarizing the extent of pipe lining performed. Update pipe lining contract record drawings to reflect the as-built condition after lining is complete and submit to the Contracting Officer. The Contracting Officer may review the video and documentation, and may inspect the work site to determine that the scope of work is complete, that the work is satisfactory, and the site has been returned to its original condition.

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SECTION 22 05 83.63 Page 5