1991-01-14 Regular Meeting - Laserfiche WebLink

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• RECONSTRUCTION OF SEV~'ERS BY CURED-IN-PLACE-PIPE (CIPP) 1. Description: It is the intent of this specification to pro~~ide for the reconstruction of existing sewer lines by forming a new pipe within an existing structurally deteriorated pipe w•h~ch has generally maintained its original shape. The cured-in-place-pipe (CIPP) shall provide flow capacity equal to or greater than 100% of the original pipe's flow capacity when new. The installation of the CIPP shall be accomplished by the use of the Insituform Process or approved equal process. The process is defined as the reconstruction of sewer lines by installation of a thermosetting resin impregnated flexible felt fiber tube coated on one side with polyurethane which is inverted into the existin sewer line utilizing a water column. Curing is accomplished by circulating hot water ~or other approved fluid) throughout the length of the inverted tube to cure the thermosetting resin into a hard impermeable pipe with the polyurethane coating on the inside surface of the new pipe. The pipe shall extend the full length of the original pipe and shall provide a structurally sound, jointless, close-fitting, cured-in-place-pipe. A bidder may propose a proven alternate method of CIPP instead of the procedure described in this Specification. Such a proposal will be accepted by the Board if it has been approved as an equal to the method described in this Specification. This approval must come from the City's Authorized Representative and it must be granted a minimum of ten (10) days prior to the bid opening. The following information shall be submitted to the City's Authorized Representative a minimum of twenty (20) days prior to bid opening: Product Data Physical Properties Material Specifications Installation Specifications Testing Methods Third Party Test Data References (Names & Telephone Numbers) Design Criteria Limitations of Process List of Previous Projects in USA Size of Completed Projects in USA List of Current Projects in USA Size of Current Projects in USA List of Currently Owned Equipment The City's Authorized Representative will not consider an alternate method which does not have demonstrated experience in quantities and sizes of pipe equal to or greater tha ,those in this Specifications bid proposal. 2. Methods: a. Reference Specifications: This specification references Insituform of North America (INA) Standard Test Methods which are made a part hereof by such reference and shall be the latest editions and revisions thereof. Test methods of other approved equal processes shall be reviewed for approval by the Authorized City Representative. ASTM F1216 shall govern when this specification does not address installation methods and materials. b. General Corrosion Requirements: The CIPP shall be fabricated from materials which when cured will be chemically resistant to withstand internal exposure to domestic sewage. c. Waste Analysis Industrial Areas Onlx): In industrial areas where sewers are subject to possible organics and inorganics other than normal domestic sewage, the Authorized City Representative shall obtain samples of the dry weather