State of Technology Report for Force Main Rehabilitation, Final ...

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Technology/Method CIPP/Inversion with Hot Water Cured I. Technology Background Status Emerging Date of Introduction 1995 Utilization Rates 44 miles since 1995 Vendor Name(s) Insituform PPL® (Pressure Pipe Liner) Insituform Technologies, Inc. 17999 Edison Ave., Chesterfield, MO 63005 Phone: 636-530-8000 Fax: 636-519- 8744 Web: www.insituform.com Practitioner(s) 14,000 feet of 16 to 30 inches Fire Water Piping Alyeska Marine Terminal Valdez, AK Mr. Kent Peterson Alyeska Pipeline 907-834-7357 Description of Main Features 750 feet of 18 inches Sewage Force Main Lake Waukomis, MO Mr. Charles Raab Sr. Technical Advisor TREKK Design Group, LLC 1441 East 104 th St., Suite 105 Kansas City, MO 64131 816-874-4662 crabb@trekkllc.com 125 feet of 47 inches Cooling Water Piping Citgo Petroleum Corporation Lake Charles, LA Mr. Ronnie Nichols Planner Citgo Petroleum Corporation Clifton Ridge Road Lake Charles, LA 70633 318-708-8580 Insituform PPL is a custom engineered CIPP product designed to eliminate leaks and prevent internal corrosion and/or erosion in structurally sound pressure pipes. It is an interactive liner that will span small holes, pits or open joints in the host pipe. The CIPP tube has a similar construction to standard Insituform CIPP tubes, with special glass reinforcement included to handle pressure applications. Resins used are either vinyl ester or epoxy (special epoxy for potable water applications). Main Benefits • Spans over small holes, gaps or open joints. Claimed • Extends life of a deteriorated or leaking pressure pipe. • Minimal disruption as installed inside existing main, trenchlessly. • Smooth interior surface. • Stops internal corrosion. Main Limitations Cited Applicability (Underline those that apply) • Can be installed in line with bends up to 90 o . • Interior must be very clean, with no protrusions. • Shut down system or by-pass pump during insertion and cure. • Not fully structural so host pipe must continue to carry internal pressure and external load. • Designed to resist external pressures due to groundwater when the host pipe is empty. Force Main Gravity Sewer Laterals Manholes Appurtenances Water Main Service Lines Other: Process Lines A-34
Technology/Method CIPP/Inversion with Hot Water Cured II. Technology Parameters Service Application Water (potable), Gravity and Low Pressure Wastewater, Industrial - cooling water, fire water, and process lines Service Connections Liner stops and starts at connections, which must be reinstated via open cut. Structural Rating Class III – Semi-Structural, capable of bridging holes, gaps and joints while the Claimed Materials of Composition host pipe carries the full internal pressure Vinyl ester or epoxy resins (special epoxy for potable water), standard Insituform CIPP non-woven felt tube but with special glass reinforcement included. Minimum Physical Properties (25 o C) Property ASTM Method Value Initial Flexural Modulus of Elasticity D790 250,000 psi Initial Flexural Strength D790 6,500 psi Initial Tensile Strength D638 5,000 psi Initial Tensile Modulus D638 300,000 psi For design of spanning over small holes, the flexural strength is reduced to 1/3 rd Diameter Range, inches of the initial value for long-term performance. In addition, a factor of safety of 2 is utilized. 8-60 inches Thickness Range, inches 0.3-0.7 inches (8–18 mm) Pressure Capacity, psi Up to 200 psi Temperature Range, o F 120 o F Renewal Length, feet 200 to 1,000 feet Other Notes All terminations must be fitted with mechanical end seals. Product Standards III. Technology Design, Installation, and QA/QC Information Special epoxy used for potable water applications – NSF 61 listed Design Standards ASTM F1216, Appendix X1.3.1 Design Life Range 50 years Installation Standards F 1216 Installation Pipeline is to be cleaned and all debris removed from the interior. CCTV should Methodology be performed before lining. All obstructions, including reducers, line valves and protruding connections to be removed. The reinforced Insituform felt tube is resin saturated either in the factory or on site and prepared for installation. On site, the tube is positioned in the pipeline using water pressure to turn the tube inside out (inversion). The water pressure forces the tube to a close fit with the host pipe. After positioned, the resin is cured by circulating hot water through the tube. Once cured, the pipe is cooled to a maximum of 90 o F. The ends are cut and sealed. Expansion type end seals with expandable stainless steel bands and elastomeric seals are used for this purpose. The pipe may be returned to service after CCTV inspection and pressure testing. QA/QC • Prior to insertion of tube, CCTV inspection of main needed to locate any obstructions, protrusion, changes in diameter or in-line valves that could affect liner. • After insertion and cure, liner inspected again visually with CCTV, and any abnormalities are noted. • For each inversion length, one liner sample, suitable in size to yield 5 specimens, is collected either from a section of the cured pipe lining (usually at termination point) or a flat plate sample and subjected to flexural and tensile testing. Average values should exceed minimums used for design. • Pressure testing to be carried out after liner has reached original ambient ground temperature. The liner and host pipe subjected to a hydrostatic internal pressure equal to twice the known operating pressure, or operating pressure plus 50 psi, whichever is less. After stabilization period of 2-3 hours, test period is one hour. Limit on make-up water to maintain pressure A-35
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EPA/600/R-10/044| March 2010 | www.
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DISCLAIMER The work reported in thi
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Introduction EXECUTIVE SUMMARY Forc
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The use of close-fit liners is ofte
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A whole host of ASTM specifications
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CONTENTS DISCLAIMER ...............
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6.0: OPERATION AND MAINTENANCE.....
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DEFINITIONS Cured-in-place pipe (CI
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3-D three-dimensional AASHTO ACP AR
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UV ultraviolet WERF Water Environme
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wastewater conveyance systems (EPA,
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• Section 8: Findings and Recomme
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Figure 2-2. Diameter Distribution o
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Figure 2-4. Location of Force Mains
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Proper inspection of force mains wo
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0.03% of the overall length. There
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Table 3-1. Summary of Renewal Techn
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3.3.3 Joint Repair 3.3.3.1 Internal
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more appropriate to a water main wh
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are, however, several communities (
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Table 3-3. Properties of Hunting Po
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3.4.3.1 Symmetrical Reduction Close
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Rolldown Rolldown was developed in
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Subline Subline, offered by Subterr
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On-Site Expandable PVC Close-Fit Li
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3.4.4.2 Semi-Structural CIPP Liners
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inch (150 mm) liner down to 60 psi
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3.4.5.1 Adhesive-Backed Woven Hose
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US. Primus Line is a seamless, wove
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Figure 3-21. Summary of Replacement
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favorable to stringing out a long l
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3.5.1.3 Pipe Slitting. Pipe slittin
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4.1 4.0 TECHNOLOGY SELECTION CONSID
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head loss to maintain flow capacity
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ferrous main, this can be an intern
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5.0 DESIGN AND QA/QC This section w
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thickness? It can still support the
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pipe’s design life. Once again, i
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ASTM F1533 The renewal process invo
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AWWA M55 PE Pipe - Design and Insta
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Most of the controversy over the ap
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up to each individual manufacturer.
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For pressure applications, a hydros
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Dimensional checks on the pipe diam
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Page 97 and 98: 7.0 GAPS BETWEEN NEEDS AND AVAILABL
Page 99 and 100: 80 Table 7-1. Technology Gaps and C
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Page 105 and 106: 9.0 REFERENCES Aggarwal, S.C. and M
Page 107 and 108: Technology/Method Spray - On Lining
Page 109 and 110: Technology/Method Spray - On Lining
Page 111 and 112: Technology/Method Spray - on Lining
Page 113 and 114: Technology/Method Close Fit/Tension
Page 115 and 116: Technology/Method Close Fit PE/Symm
Page 117 and 118: Technology/Method Symmetrical Reduc
Page 119 and 120: Technology/Method Rolldown/Close Fi
Page 121 and 122: Technology/Method Subcoil/Close Fit
Page 123 and 124: Technology/Method PE Liner/ Cement
Page 125 and 126: Technology/Method Subline/Close Fit
Page 127 and 128: Technology/Method Fold and Form PE
Page 129 and 130: Technology/Method Fold -and - Form/
Page 131 and 132: Technology/Method Fold -and - Form/
Page 133 and 134: Technology/Method Fold -and - Form
Page 135 and 136: Technology/Method Fold -and - Form
Page 137 and 138: Technology/Method Close - Fit Linin
Page 139: Technology/Method CIPP/Pull In Plac
Page 143 and 144: Technology/Method CIPP/Direct Inver
Page 145 and 146: Technology/Method CIPP/ Inversion a
Page 147 and 148: Technology/Method CIPP/Inversion wi
Page 149 and 150: Technology/Method CIPP/Inversion wi
Page 151 and 152: Technology/Method CIPP/Glass Fiber
Page 153 and 154: Technology/Method CIPP/Pull in Plac
Page 155 and 156: Technology/Method CIPP/UV Light Cur
Page 157 and 158: Technology/Method CIPP/Glass Reinfo
Page 159 and 160: Technology/Method CIPP with Carbon
Page 165 and 166: for Rehabilitated Sections V. Costs
Page 167 and 168: Technology/Method Woven Hose Lining
Page 169 and 170: Technology/Method Saertex - Liner®
Page 171 and 172: Technology/Method Hose Liner/Pulled
Page 173 and 174: Technology/Method Glass Reinforced
Page 175: Technology/Method Sliplining/HDD/Pi
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State of Technology Report for Force Main Rehabilitation, Final ...

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