00412Cured-in-Place Pipe Lining Thermo Cure

00412.00 Scope - This Work consists of rehabilitating existing pipes by furnishing and installing pipe

liners by cured- in-place pipe (CIPP) lini ng methods as shown using a thermosetting resin cured with hot water or steam .

00412.01 Submittals - Submit the following at least 10 Calendar Day s before the preconstruction

conference. List each submittal in a table of contents including a corresponding page number. • Certification by the lining system manufacturer that the installer is licensed and certified as competent to perform the Work . • Documentation showing the installer meets the qualifications listed in 00412.30, and a list of the key qualified personnel who are assigned to Work on this Project . • Independent third party certification of test results confirming the CIPP liner system meets the minimum chemical resistance requirements according to ASTM F1216 and ASTM F1743 when lining storm sewers, sanitary sewers, industrial applications or as directed. • Catalog data, and manufacturer's t echnical data showing complete information on material composition, physical properties, and dimensions of system components of the tube and resin system. Include manufacturer's recommendation for handling, storage, insertion, curing, trimming, finishing, and repair of damaged liner. • Calculations for the volume of resin to be used for each segment and detailed description of the wet-out process. Include the tube and resin manufacturer 's wet -out recommendations including the roller gap, material feed speed and vacuum requirements for each liner size and thickness. • End seal M aterial to be used, and method of installation. If a grout sealing method is proposed or suggested, provide certification from the grout manufacturer or Supplier that the grout M aterial for sealing Structure s and service laterals is compatible with the proposed resin and liner system and is suitable for use in aqueous environments. • Field s ampling and testing plan for physical properties according to ASTM F1216 and ASTM F1743, including na me and location of laboratory performing testing on installed liner system. Provide certification that the independent third party laboratory has the appropriate accreditation for the specified tests to be performed. Installation plan describing project s taging, liner shot plan and sequence, and the manufacturer’s standard procedures for liner installation. Include allowable pulling forces, installation pressures, allowable curing temperatures, and temperature monitoring plan. Contingency repair plan including methods and Equipment to be used to repair or replace unacceptable liner defects identified in 00412.73. • Stamped design of the proposed liner according to 00150.35 and 00412.02. Submit the following for approval according to 00150.37 at least 10 Calendar Days before ordering tube(s): Verify Pipe length, rise and span, for each installation according to Section 00415 and include the corresponding tube size that will be ordered for each installation according to 00412.10. Do not order Material(s) until approval has been received. Upon liner system delivery, submit wet -out logs documenting resin volumes used. 00412.02 346 00412.02 Design Parameters - Follow the design considerations of ASTM F1216 and meet the following: Condition Parameter Service Life ...............................Greater than 50 year Pipe Conditions .........................Fully deteriorated Load Conditions: Soil .................................. 125 lb/cf minimum Traffic ............................ LRFD HL - 93 live load Groundwater Elevation above invert ...... * Pipe Ovality ......................................... 5% Modulus of Soil Reaction ................... 700psi Enhancement Factor ........................... 7.0 Long-T erm Flexural: Strength .............................50% of initial ( ASTM D790) Modulus of Elasticity ..........50% of initial ( ASTM D790) Maximum Deflection ............................ 5% Minimum Factor of Safety .................... 2.0 * Parameters will be listed in the Special Provisions. Materials

00412.10 Tube - Furnish tubing that consists of absorbent nonwoven felt fabric meeting the

requirements of ASTM F1216, Section 5.1 and exhibits the following characteristics: • A smooth, impermeable, bonded coating on the inside of the finished pipe. • Sewn or bonded seams, stronger than non-seamed Material, as recommended by the tube manufacturer. • No allowable delamination in the cured CIPP. Verify pipe lengths and pipe diameters before ordering tubing.

00412.11 Resin - Furnish resins meeting the requirements of ASTM F1216, Section 5.2, or

ASTM F1743, Section 5.2.3. Comply with the structural requirements specified for the installed liner system. Furnish thermosetting polyester, vinylester, or epoxy resin and a catalyst system compatible with the installation process, and is able to cure in the presence or absence of water. Color the resin with a pigment compatible with the resin system.

00412.12 Liner Properties - Furnish liners that have the minimum physical properties stated in

ASTM F1216, ASTM F1743 and ASTM D2990, and are also resistant to chemical properties and flow characteristics typically found in municipal sanitary sewer flows. Fabricate the liner to a size that when cured, will tightly fit the pipe being rehabilitated. The finished liner system shall be homogeneous across the wall thickness containing no intermediate or encapsulated elastomeric layers. Characteristic Test Method Epoxy/Vinylester Polyester Resin Initial Flexural Strength ASTM D790 5,000 psi 4,500 psi Initial Flexural Modulus of Elasticity ASTM D790 400,000 psi 250,000 psi (min.) 00412.44 347 Labor

00412.30 Personnel Qualifications - Provide installers who:

• Are licensed, and certified by the manufacturer of the CIPP product s ystem to be used on the Project. • Have at least 3 years of active experience in the installation of CIPP. • Have installed at least 50,000 feet of CIPP in similar conditions. Construction

00412.40 General - Handle and store all liner Material to ensure that the Material is not torn, cut,

exposed to direct sunlight or otherwise damaged. Before installing the liner, verify its condition with the Engineer. If any part of the liner Material becomes torn, cut, or damaged before or during insertion, repair or replace it at no additional cost to the Agency before proceeding further.

00412.41 Pipe Cleaning - Clean the pipe by removing all debris, sediment, and other accumulated

material. Do not use chemicals wit hout the written approval of the Engineer. Remove and dispose of all debris according to 00290.20.

00412.42 Pre -Installation:

00412.43 Installation - Install CIPP according to ASTM F1216 Section 7, ASTM F1743 Section 6,

and the manufacturer's recommendations.

00412.44 Service Line Reconnection - Reinstate active service laterals using an internal cutter.

Open hole to a minimum of 95 percent, but do not exceed 105 percent of the service lateral diameter. Make each connection free from burrs or projections, and with a smooth and crack -free edge. 00412.70 348 Finishing, Cleaning Up, and Testing

00412.70 General - Ensure the cured liner is continuous and free from visual defects such as foreign

inclusions, dry spots, pinholes, delamination, and wrinkles at all locations. Verify the lining is impervious and free of any leakage from water infiltration into the lined pi pe or exfiltration from the lined pipe. Cut both ends of the cured liner flush at the inlet and outlet points of the pipe, and seal with an epoxy or resin mixture compatible with the liner/resin system, providing a watertight seal. Remove any temporary dams or filtration measures after Work is complete and pipe is clean and restored.

00412.71 Post Installation Video Inspection - After installation of the CIPP perform a post -

installation video inspection of the pipe according to Section 00415.

00412.72 Material Sampling and Testing - Obtain samples and perform material testing according

to ASTM F1216 and ASTM F1743. Perform one physical properties test per 1,000 feet installed, or as specified. Individually label and log each sample with the following information: Project name Name of Contactor Sampler’s name Sample number Date and time of sample Location of sample Initial cure start date and time Name and location of third party laboratory Flexural properties must meet or exceed the values according to 00412.12.

00412.73 Repairs - Before making repairs, provide the CIPP liner system manufacturer's

recommendations for liner repairs, subject to approval by the Engineer . Repair or replace CIPP liners that have: • Wrinkles, fins or other dis continuities in the lower one-third of the pipe that are perpendicular to the flow and exceed 1/2 inches in height, or are greater than 3 percent of the host pipe inside diameter. • Wrinkles, fins or other discontinuities in the upper two-thirds of the pipe that are perpendicular to the flow and are greater in height than 5 percent of the host pipe inside diameter. • Blisters or dry spots present. • Leakage through the liner in excess of ASTM F1216 and ASTM F1743 standards. • Separation of the liner from the host pipe. • Delamination of CIPP layers.

00412.75 Contractor Warranty - The Contractor unconditionally warrants to the Agency the product

and installation under this Section against failure, according to this Subsection and 00170.85(b)(1). 00412.80 349 "Unconditionally warrant" means that the warranty covers all failures, regardless of the source or cause of the failure, including, without limitation, whether the source or cause is or may be related to workmanship, inspection, or choice of M aterials. The Agency inspection of any portion of the Work during the Contract and during the product installation, the Agency acceptance of the Work , corrections under the warranty, or expiration of the warranty shall not relieve the obligations under this warranty.

00412.80 Measurement - The quantities of installed CIPP liners, of the various kinds, types, and

sizes, will be measured on the length basis. The length will be measured, with no deduction for Structures or fittings, along the pipe flow line from center to center of manholes, inlets, Structures, special sections, or the ends of pipe, whichever is applicable. The quantities of service line reconnections will be measured on the unit basis, regardless of size. 00412.90 Payment

00412.90 Payment - The accepted quantities of Work performed under this Section will be paid for

at the Contract unit price, per unit of measurement, for the following items: Pay Item Unit of Measurement