Loading...
PERMIT DOCUMENTS Specification for Lateral Reconstruction of Sanitary Sewers by MaxLiner 1. Intent (1.1) It is the intent of this specification to provide for the reconstruction of existing service lateral sanitary sewer lines, normally with minimal excavation, by forming a new pipe within an existing deteriorated pipe, which has generally maintained its original shape. This will be accomplished by the installation of a resin impregnated flexible felt tube inverted into the existing service lateral utilizing a pressure apparatus positioned at a cleanout, basement drain or similar access point. Curing shall be accomplished abiently by compressed air or by circulating hot water, which will cure the resin into a hard, impermeable cured –in-place-pipe (CIPP). When cured, MaxLiner should extend over the length of the installation in a continuous, tight-fitting, structural, corrosion resistant and watertight CIPP pipe-within-a-pipe. 2. Materials (2.1) Resin - The resin used shall be a 100% solids epoxy and hardener system specifically designed for the cured-in-place-pipe (CIPP) being installed. (2.1)1. The resin shall be MaxPox 15 base resin with the appropriate MaxPox hardener. Pot life minimum shall be 16 minutes; pot life maximum shall be 75 minutes. (2.1)2. The Resin and Liner system shall be ANSI/NSF 14 certified. (2.1)3. The resin shall contain no styrene or other chemicals that have extreme malicious odors. (2.2)Liner Materials – Lining materials for lateral pipe must provide the flexibility to line 45 to 90 degree bends that result in a finished liner that has a smooth inside radius. Liner material must be approved MaxLiner plain felt and knitted polyester liners with no reinforcement as part of the composite. (2.2)1. MaxLiner liners and bends to be lined include: (2.2)1.1 Max LinerTube up to 22.5 degrees (2.2)1.2. Max FlexLiner up to 45 degrees (2.2)1.3. Max WovoLiner up to 90 degrees (2.3)General Requirements of CIPP – The finished pipe must be such that when the thermosetting resin cures, the total wall thickness will be a homogeneous and monolithic felt and resin composite matrix that will be chemically resistant to withstand internal exposure to domestic sewerage. 1 (2.3)1. The minimum length shall be that deemed necessary by the engineer to effectively span the pipelining distance of the necessary sectional repair unless otherwise specified. The line length shall be verified in the field before impregnation of the tube with resin. (2.3)2. The outside of the tube, before installation, shall have an impermeable polymer coating. This coating will form the inner layer of the finished pipe and is required for enhancement of corrosion, flow and abrasion properties. (2.3)3. Appropriate flexibility and suitability of the MaxLiner tube shall be selected to match the configuration of the existing lateral service, i.e., bends and diameter transitions. 3. Reference Specifications (3.1) Installation and material tests of cured-in-place-pipe (CIPP) must meet the minimum requirements demonstrated in the following ASTM standards: ASTM F-1216 Standard Practice for the Installation of Cured-in-Place-Pipe By Inversion Lining ASTM D-638 Test Method for Tensile Properties of Plastics Tensile Strength 3,000 psi ASTM D-790 Test Method of Flexural Properties of Plastics Flexural Strength 4,500 psi Flexural Modulus 250,000 psi (3.2) National Association of Sewer Service Companies (NASSCO) th Wastewater Collection Systems Maintenance and Rehabilitation- 10 Edition: Chapters titled “TV Inspection” and “Sewer Line Cleaning.” 4. Pipe Design (4.1) The MaxLiner pipe shall be designed to a minimum wall thickness based on the individual project parameters and the condition of the existing conduit. Prior to installation of the liner, design calculations, per ASTM F1216-98, shall be submitted to determine the minimum thickness of the liner to be installed. The pipe design shall have sufficient strength to support all dead loads, live loads and groundwater loads imposed. Regardless of design thickness determined above the following are suggested minimum thickness per diameters: 4” and 5” MaxLiner Minimum thickness – 3mm 6” and 8” MaxLiner Minimum thickness – 4mm 2 (4.2) The contractor shall submit his price proposal based on the appropriate length, size, and existing pipe parameters designated in the Bid Item or Bid Proposal Section. The deterioration of sewers is an ongoing process. Should preconstruction inspections reveal the sewers to be in substantially different conditions than those in the design considerations, the contractor shall request such changes in reconstruction liner thickness, supporting such requests with design data. The deviation, if approved, shall be reflected by the appropriate addition or reduction in the unit cost for that size as agreed to by the owner or engineer. 5. Installation Responsibilities and Procedures (5.1) It shall be the responsibility of the Owner to locate and designate all access points open and accessible for the work, and provide rights of access to these points. The Owner shall also provide free access to water hydrants for cleaning, inversion and other work items requiring water. (5.2) Cleaning- Sewers shall be cleaned of all debris, roots and other materials that would block proper inversion of the cured-in-place-pipe. Utilizing high-pressure jet cleaning equipment, several passes are completed to assure all debris is removed from the pipe. If roots are present, root cutters or mechanical brushes are attached to the jet nozzle and are sent through the line to remove all root intrusions. (5.3) TV Inspection of Pipelines- Inspection of pipelines shall be performed by experienced personnel trained in locating breaks and obstacles by closed circuit television (CCTV). The interior of the pipeline shall be carefully inspected to determine the location of any conditions that may prevent proper installation of MaxLiner into the pipelines, and it shall be noted so that these conditions can be corrected. A videotape and suitable log shall be kept for later reference by the Owner. (5.4) Resin Impregnated of CIPP Tube - The Contractor shall designate a location where the tube shall be impregnated or “wet out” with resin, using Max CallibrationRollers and a “single-source” Max VacPump to thoroughly saturate the tube’s felt fiber prior to installation. The impregnated tube shall be free of pinholes, resin voids and other defects after impregnation is completed. (5.5) Inversion of CIPP Tube - The wet-out MaxLiner Tube shall be loaded inside a pressure apparatus above ground. Air pressure, supplied to the pressure apparatus shall be used to invert the wet-out tube through the lateral pipe. The inversion head will be adjusted to be of sufficient pressure to cause the impregnated MaxLiner tube to invert completely in the lateral pipe. Care shall be taken during the curing process so as not to overstress the liner. If no access is available on one end of the installation, a calibration hose will be similarly inverted into the MaxLiner Tube in order to hold pressure and maintain a close fit during processing. 3 (5.6) CIPP Processing (Curing) - In most circumstances, an accelerated ambient- temperature curing resin system will be utilized; however if a heat cure is required, the Installer shall supply a suitable heat source and water recirculation equipment. The requirement shall be capable of delivering hot water or other approved heat source throughout the section by means of a pre-strung hose to uniformly raise the water temperature above the temperature required to affect a cure of the resin. This temperature shall be determined by the resin/catalyst system employed. (5.6.1)1. If a heat cure is required, the heat source shall be fitted with suitable monitors to gauge the temperature of the incoming and outgoing water supply. Water temperature in the line during the cure period shall be recommended by the resin manufacturer (5.6.1)2. Initial cure shall be deemed to be completed when inspection of the exposed portions of the MaxLiner appear to be hard and sound and the temperature gauge indicates that the temperature is of a magnitude to realize an exotherm. The cure period shall be of a duration recommended by the resin manufacturer, as modified for the MaxLiner process. (5.6.1)3. Cool-down – The Installer shall cool the hardened MaxLiner to a temperature below 100°F before relieving the pressure in the pressure apparatus. Cool-down may be accomplished by the introduction of cool air into the pressure apparatus to replace water being forced out of the pressure apparatus. Care shall be taken to maintain proper pressure throughout the cure and cool-down period. (5.7) Finish – The finished CIPP shall be continuous over the entire length of an inversion length and be free of dry spots, lifts, and delamination. The lateral CIPP shall not inhibit the CCTV post video inspection of the mainline or service lateral pipes. (5.8) After the work is completed, the Installer will provide the Owner with a videotape showing the completed work including the restored conditions. 6. Clean-up (6.1) Upon acceptance of the installation work, the Installer shall reinstate the project area affected by his operations. 4 QMVNCJOH EbvsjbB!2103603132 ICC-ES PMG Product CertificatePMG-1050 Effective Date:August2021 This listingis subject to re-examination in oneyear. ® www.icc-es-pmg.org| (800) 423-6587 | (562) 699-0543A Subsidiary of the International Code Council CSI:DIVISION: 22 00 00PLUMBING Section: 22 13 16Sanitary Waste and Vent Piping Product certification system: The ICC- stock, or a combination of both, to verify compliance with applicable codes and standards. The system also involves factory inspections, and assessment an system. ® Product: MaxLinerCured-in-Place Pipe (CIPP) System Listee: MaxLiner LLC 450 College Drive Martinsville, Virginia 24112 www.maxlinerusa.com Compliance with the following codes: ® 2021, 2018, 2015, 2012 and 2009 International PlumbingCode(IPC) ® 2021, 2018, 2015, 2012 and 2009 International Residential Code(IRC) ® 2021, 2018, 2015, 2012 and 2009 Uniform Plumbing Code(UPC)* 2017 Uniform Illustrated Plumbing Code (UIPC-I)* *Copyrighted publication of the International Association of Plumbing and Mechanical Officials Compliance with the following standards: ASTM F1216-2016, Standard Practice for Rehabilitation of Existing Pipelines and Conduits by the Inversion and Curing of Resin-Impregnated Tube, ASTM International. NSF/ANSI 14-2020, Plastic Piping System Components and Related Materials, National Sanitation Foundation. ICC-ES LC1011 (October 2010), PMG Listing Criteria for the Rehabilitation of Existing Building Drains and Building Sewers by theInversion and Curing of Resin-impregnated Tube. Identification: At a maximum distance of 20 feet (6096 mm), aboveground, along the resin-impregnated lined pipe name -ES PMG listing mark. The label must include a warning against using flame or heat when repairing any part of the piping system. (See Figure 1) MaxPox Resin: Each container b (MaxLiner LLC), NSF listing mark and the ICC-ES PMG listing mark. (MaxLiner LLC), NSF listing mark and the ICC-ES PMG listing mark. Listings are nottobe construed as representing aesthetics oranyother attributesnot specifically addressed, norare they to be construed as an endorsement of thesubject of the listingor a recommendation for its use. There is no warranty by ICC Evaluation Service, LLC, expressor implied, as to any finding or other matter in this listing, or as to any product covered by thelisting. Copyright © 2021ICCEvaluationService, LLC. All rightsreserved. Page 1of 3 | PMG-1050 Most Widely Accepted and Trusted Page 2 of 3 name (MaxLiner LLC), NSF listing mark and the ICC-ES PMG listing mark. Installation: Installation must comply with the manuf codes. ® The MaxLiner Cured-in-place pipe (CIPP) System must be applied by installers trained and certified by MaxLiner LLC. Inspection and Cleaning: The pipe must be clean of all debris, roots and other obstructions that would block proper inversion of the CIPP. The cleaning must be done with a high-velocity jetter or with mechanically powered cleaning equipment. Inspection of the pipe must be done using a closed-circuit television (CCTV) camera and performed by experienced personnel trained in locating breaks, obstacles and service connections. The interior of the pipe must be carefully inspected to determine the location of any conditions that may prevent proper installation of the CIPP liner into the pipe, conditions such as protruding service taps, collapsed or crushed pipe, reductions in the cross-sectional area of more than 40%, or other obstructions must be corrected. If inspection reveals a condition that cannot be removed by conventional sewer cleaning equipment, then a point repair excavation should be made to uncover and remove or repair the obstruction. Preparation, Installation and Curing of the Liner: The quantity of the specified MaxPox Resin and MaxPox Hardener required mu on pipe diameter, length and liner thickness. The quantity should be adjusted by adding 5% to 10% more than calculated to allow for migration into the cracks and joints of the original pipe. recommendations. The installer must remove all air from the liner tube using vacuum equipment approved by the manufacturer prior to filling the liner with the blended epoxy resin. distribute the blended epoxy resin in the liner tube using a calibration roller approved by the manufacturer to insure thorough saturation. installation instructions using equipment approved by the manufacturer. The epoxy must be cured using one of the following methods: Circulation of hot water, or air, or steam: A bladder, referred to as a calibration tube, is installed inside and beyond the length of the liner. The bladder is filled with water, hot air or steam pressurized The bladder is connected to a heater which circulates the water, air or steam in the bladder and raises the temperature to between 120°F and 160°F. This temperature and pressure are maintained for a minimum of one hour. This forces the liner against the inside diameter of the piping during curing. The liner must be properly cooled down in accordance with s before the bladder can be removed. Ambient air curing: Depending on the air and ground temperatures, the appropriate mixture of There are different formulations of MaxPox hardener, depending on the temperature (hot weather, warm weather and cold weather mixtures). Once the liner is installed in the pipe, the epoxy can be cured by exposing the liner to ambient air. Models: ® MaxLiner Cured-in-place pipe (CIPP) System: The system consists of components tested and listed to NSF 14 and ASTM F1216. The system consists of the MaxLiner tubes, MaxPox Resin and MaxPox Hardener. | PMG-1050 Most Widely Accepted and TrustedPage 3of 3 Conditions of Listing: 1.Installation must be performed by installers trained and certified by MaxLiner LLC. ® 2.The MaxLinerCIPP System may be used to line pipe with minimum diameter of 2inches (50 mm) to maximum diameter of 10inches (254 mm). 3.The minimum wall thickness of the liner must meet minimum design calculations per ASTM F1216 Non-Mandatory Appendix X.1 (if applicable). 4.The pipe must be inspected and cleaned in accordance with the Inspection and Cleaning section ® 5.Samples of the MaxLinerCIPP System taken in accordance with ASTM F1216 Sections 8.1.1, 8.1.2 and 8.1.3 must be tested in accordance with ASTM D 790 for short-termflexural strength and flexural modulus. The minimum flexural strength must be 4500 psi (31 MPa) or greater and minimum flexural modulus must be 250,000 psi (1724 MPa) or greater. The testing must be conducted by an accredited laboratory acceptable to ICC Evaluation Services. 6.Final video inspection in accordance with ASTM F1216 must be performed and witnessed by the code official or his designated representative. The final inspection must verify that the liner is continuous over the entire length of the inversion and is free of dry spots, lifts, and delamination. 7.Leakage verification testing must be performed and witnessed by a representative of an accredited laboratory. A test assembly must be set up utilizing a 4-inch-diameter (102 mm) pipe that is a minimum of 50 feet (15.24 m) in length with fittings used to simulate an actual installation instructions. The completed test assembly must be tested for leakage in accordance with ASTM F1216 Section 8.2. Maximum leakage with the maximum pressure of 4.3 pounds per square inch (psi) (29.7 kPa) at the lowest point should be 50 gallons per inch of pipe diameter per mile per day with all air bled from the system. ® 8.MaxLinerCIPP System materials are under a quality control program with annual inspection by ICC-ES. PLEASE DO NOT REMOVE! Epoxy-Lined Pipe ALL REPAIRS OR MODIFICATIONS TO THIS PIPE MUST BE CARRIED OUT USING FLAMELESS TECHNOLOGY WHICH FOLLOWS THE ATIONS. FIGURE 1CAUTION LABEL