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10.26.2021-SBN-Standards-Manufacturer-Additions-Minor-Revisions-final
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10.26.2021-SBN-Standards-Manufacturer-Additions-Minor-Revisions-final
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5/6/2024 3:44:43 PM
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5/6/2024 3:43:30 PM
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Board of Public Works
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City Property
Document Date
5/6/2024
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SECTION 4 – SANITARY <br />62 <br />Water or air temperature in the pipe during the cure period shall be as recommended by the <br />resin Manufacturer. <br />3.) Initial cure shall be deemed to be completed when inspection of the exposed portions of cured <br />pipe appear to be hard and sound and the remote temperature sensor indicates that the <br />temperature is of a magnitude to realize an exotherm. The cure period shall be of a duration <br />recommended by the resin Manufacturer, as modified for the installation process, during which <br />time the recirculation of the heat and cycling of the heat exchanger to maintain the temperature <br />continues. The heat source shall be shut down during the post-cure. <br />4.) Maintain records of the curing process including water/steam temperatures, lining <br />temperatures, and water head. Readings shall be made and recorded at thirty (30) minute <br />intervals of Boiler water temperature in, Boiler water temperature out, and liner external <br />surface temperatures at manholes. <br />4-3.11 (e) COOL DOWN <br />Cool down may be accomplished by the introduction of cool water or air into the installation <br />standpipe to replace water or pressurized air being relieved from the manhole. Cool the hardened <br />pipe to a temperature below 100 degrees Fahrenheit before relieving the static head. A minimum <br />period of post-cure shall be maintained under a static head to provide a minimum hoop tension on <br />the tube felt. Care shall be taken in the release of the static head so that a vacuum will not be <br />developed. The water used for the cool down shall be released slowly to prevent dry weather <br />overflow downstream or cause damage to the sewer network downstream of the project. <br />4-3.11 (f) END SEALS <br />Install hydrophilic end seals to provide a water-tight connection at all pipe and manhole <br />connections. End Seals shall be installed per manufacturer’s recommendations. <br />4-3.11 (g) FINISH <br />1.) The finished lining shall be continuous over the entire length of an insertion run between two <br />(2)manholes and be as free as commercially practical from visual defects such as foreign <br />inclusions, dry spots, pinholes, and delamination. The lining shall be homogeneous, <br />impervious, and free of any leakage from the surrounding ground to the inside of the lined pipe. <br />2.) During the warranty period, any defects which will affect the integrity or strength of the liner, <br />collect solids, or reduce hydraulic flow capabilities of the product shall be repaired. <br />4-3.11 (h) REINSTATE LATERALS AND SERVICES <br />1.) Accurate location of the lateral and service connections shall be made by inspection of the pre- <br />installation video recording. <br />2.) Upon completion of the main line CIPP installation and the approved infiltration/exfiltration <br />testing, immediately proceed with the reinstatement of the lateral sewers. Reinstatement of <br />lateral sewers shall be completed within twelve (12) hours of service disruption.
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