Retrospective Evaluation of Cured-in-Place Pipe - (NEPIS)(EPA ...

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Table 7-3. Overall Structure for a National Retrospective Evaluation Database Agency Utility Information Name, City, State (Province) Primary Contact Name, Position, Phone, Email System Type Wastewater, Storm, Combined, Water (for future retrospectives) System Size Miles of Mains, Miles of Laterals, Number of Manholes Rehabilitation Program Overview Miles per Year Rehabilitated, Miles per Year Replaced Technology Used Sliplining CIPP Close-fit linings Grout-in-place linings Spiral-wound linings Panel linings Spray/spin-cast linings Grouting Other [user specified] CIPP Experience Overview CIPP Usage Data Year CIPP First Used; Total CIPP Length Installed, CIPP Miles per Year CIPP Technology Type Full length [ft]; Patch repairs [ft]; Lateral lining [ft]; Tees/top hats [no] CIPP Installation Methods Air inversion [%]; Water inversion [%]; Pull-in and inflate [%] CIPP Curing Methods Ambient [%]; Steam [%]; Hot Water [%]; UV Light [%] CIPP Retrospective Case Study - Pipe Data Table Host Pipe Location Street Name, City, State Host Pipe Installation Date Year Host Pipe Material Ductile iron; Cast iron; Steel; Reinforced Concrete Pipe; Prestressed Concrete Cylinder Pipe; Brick; VCP; PVC; PE, Other Host Pipe Shape Circle; Egg-Shaped; Box-Shaped; Other [User-Specified] Host Pipe Diameter in. Host Pipe Rehab Length ft Host Pipe Burial Depth ft below ground surface Water Table Depth ft below ground surface Soil Conditions Soft Clay; Firm Clay; Stiff Hard Clay; Loose Sand; Medium Sand; Condition Assessment of Host Pipe Dense Sand; Cobble/Boulder; Bedrock; Gravel; Other Infiltration/Exfiltration Testing [Dates/Results] CCTV [Dates/Results] Visual [Dates/Results] NDT Evaluation [Dates/Results] Coupons [Dates/Results] Problem in the Host Pipe Structural Failure, Insufficient Hydraulic Capacity, Inflow & Infiltration, etc. CIPP Retrospective Case Study – Technology Background Data Table CIPP Type Full length; Patch repair; Lateral lining; Tee/top hat Date Installed Year Liner Design Diameter in. Liner Design Thickness mm Length Rehabilitated ft Installation Method Air inversion; Water inversion; Pull-in and inflate Curing Method Ambient; Steam; Hot Water; UV-Light; Electricity Liner Installer Name, City, State (Province) Tube Manufacturer Name, City, State (Province) 106
Table 7-3. Overall Structure for a National Retrospective Evaluation Database (Continued) CIPP Retrospective Case Study – Technology Background Data Table (Continued) Tube Material Type Polyester; fiberglass; other Tube Material Construction Needled; woven; fiber-reinforced Sealing Layer Type Polyethylene; polyurethane; other Sealing Layer Thickness mm Resin Supplier Name, City, State (Province) Resin Type Polyester; Vinyl Ester; Epoxy; Other [User Specified] Resin Trade Name User-Specified Primary Catalyst User-Specified Secondary Catalyst User-Specified CIPP Retrospective Case Study – Technology Post-Installation Data Table Design Spec: Tensile Strength psi Design Spec: Flexural Strength psi Design Spec: Ovality % Post-Install: Tensile Strength psi Post-Install: Flexural Strength psi Post-Install: Ovality % Post-Install: Liner Thickness mm Defects Noted via Visual Wrinkling; Buckling; Blisters; Lateral Opening Issues; Inspection QA/QC Inspection of Rehabilitated Pipe Discoloration; Other [User-Specified] Infiltration/Exfiltration Testing [Dates/Results] CCTV [Dates/Results] Visual Assessment [Dates/Results] NDT Evaluation [Dates/Results] Coupons [Dates/Results] Other QA/QC Data Collected User-Specified CIPP Retrospective Case Study – Technology Retrospective Data Table Date of Testing Year Performance Study Duration Years [Date of Testing – Date Installed] Soil Classification Gravel; Fine Gravel; Coarse Gravel; Sand; Fine Sand; Medium Sand Coarse Sand; Clay; Silt Soil Specific Gravity Dimensionless Soil Moisture Content % Soil pH Dimensionless Annular Gap Measure at 8 locations (mm) Liner Thickness Measure at 8 locations (mm) Liner bulk density g/mL Liner porosity % Retrospective: Tensile Strength psi Retrospective: Flexural Strength psi Retrospective: Ovality % Hardness Shore D Hardness scale; Barcol Hardness scale Raman Spectroscopy User-Specified; Comparison of Aged to Virgin Resin Visual Inspection User-Specified CIPP Lessons Learned Construction Problems User-Specified Technology Performance Problems User-Specified Adjustments Made User-Specified Continued Use of the Technology Yes/No plus User-Specified Explanation 107
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EPA/600/R-12/004 | January 2012 | w
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DISCLAIMER The work reported in thi
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ACKNOWLEDGMENTS This report has bee
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samples had a flexural modulus valu
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CONTENTS DISCLAIMER ...............
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4.3.10.2 Upstream Sample ..........
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9.2.2 Recommendations for Developme
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Figure 5-27. Raman Spectra for the
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ABBREVIATIONS AND ACRONYMS AMP Asse
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1.0: INTRODUCTION This report forms
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1.2 Organization of the Report Foll
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Some sections of a sewer system may
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• The depth of the pipe below the
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Figure 2-3 highlights the main diff
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The most commonly used resins are i
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the glass fiber. The tube, which is
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3.0: DEVELOPMENT OF CIPP EVALUATION
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• The municipality would be willi
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• Measurements and/or physical sa
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Table 3-3. Laboratory Evaluation an
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4.1 Introduction 4.0: CITY OF DENVE
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Figure 4-1. Images of the Recovered
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Sample ID Figure 4-4. Soil Grain Si
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Location Table 4-5. Denver 8-in. Li
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Profile Plot Red - Steel tube Green
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Table 4-7. Results from Flexural Te
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35 Table 4-9. Comparison of Test Da
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4.2.12 Buckling Test. A steel mecha
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Figure 4-18. Pressure Gage and Pres
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4.2.13 Shore D Hardness. Durometer
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Figure 4-24. Barcol Hardness Readin
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increases and the heat of cure decr
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In summary, CCTV inspection of thre
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Figure 4-28. Thickness for Denver 4
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4.3.6.2 Downstream Sample. Seven sp
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Figure 4-34. Flexural Stress-Strain
Page 73 and 74: Table 4-18. Flexural Test Results f
Page 75 and 76: 4.3.8.2 Upstream Sample. Specimens
Page 77 and 78: 4.3.10 Barcol Hardness 4.3.10.1 Dow
Page 79 and 80: 4.3.11.2 Downstream Sample. The Ram
Page 81 and 82: 5.1 Introduction 5.0: CITY OF COLUM
Page 83 and 84: April 16, 2010 The specimen was rec
Page 85 and 86: The resulting gradation curves are
Page 87 and 88: Table 5-4. Soil pH at Designated Lo
Page 89 and 90: Figure 5-8. Average Thickness at Di
Page 91 and 92: 5.2.12 Flexural Testing. Specimens
Page 93 and 94: Figure 5-14. Flexural Stress-Strain
Page 95 and 96: Figure 5-16. Tensile Stress-Strain
Page 97 and 98: 5.2.15 Buckling Test. A mechanical
Page 99 and 100: Figure 5-24. Localized Leak on the
Page 101 and 102: Figure 5-26. Barcol Hardness Readin
Page 103 and 104: 5.3.3 Visual Inspection of Liner. I
Page 105 and 106: Figure 5-32. Ultrasonic Testing for
Page 107 and 108: Table 5-13. Geometric Data for Flex
Page 109 and 110: Figure 5-38. Shore D Hardness of Co
Page 111 and 112: 6.1 Introduction 6.0: REVIEW AND CO
Page 113 and 114: Overall, the liners appear to be ho
Page 115 and 116: age difference between the liners i
Page 117 and 118: Looking for correlations to the low
Page 119 and 120: A significantly lower range of Shor
Page 121 and 122: 7.0: RECOMMENDED TEST PROTOCOL FOR
Page 123: combining this broadly available in
Page 127 and 128: Table 8-2. CIPP and Other Rehabilit
Page 129 and 130: Table 8-5. Rehabilitation Specifica
Page 131 and 132: 113 Table 8-9. Process Verification
Page 133 and 134: Göttingen Stadtentwässerung: Göt
Page 135 and 136: experience and quality, and do not
Page 137 and 138: km of pipe and 50-year-old pipes ar
Page 139 and 140: methods are detailed in the Guide t
Page 141 and 142: The business of pipeline rehabilita
Page 143 and 144: • Destructive testing (but will n
Page 145 and 146: In Denver, in CCTV inspections of n
Page 147 and 148: 9.2 Recommendations for Future Work
Page 149 and 150: Falter, B. 1996. “Structural Anal
Page 151 and 152: Lehmann, M.A, J.P. Schroeder and C.
Page 153 and 154: APPENDIX A LIST OF TEST STANDARDS R
Page 155 and 156: The following table lists the non-A
Page 157 and 158: B.1 Introduction This study was con
Page 159 and 160: Mean thickness values for each cont
Page 161 and 162: APPENDIX C INTERNATIONAL STUDY INTE
Page 163 and 164: The original Insituform liner insta
Page 165 and 166: However, the figures published by O
Page 167 and 168: exfiltration and infiltration. Any
Page 169 and 170: STW uses CIPP for virtually all of
Page 171 and 172: method. Top hat repairs to junction
Page 173 and 174: All design and construction supervi
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Process verification test samples a
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consultant born out of the corporat
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BW continues to use CIPP, mainly in
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East, but has not yet had marked su
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