Mainline Pipe Rehabilitation Using CIPP & Folded Pipe Technology

8/8/2019 Mainline Pipe Rehabilitation Using CIPP & Folded Pipe Technology

1/39

Mainline Pipe Rehabilitation Using

Cured-in-Place Pipe (CIPP) &Folded Pipe Technology

2007 Pumper & CleanerEnvironmental Expo International

Wednesday February 7, 2007


2/39

What is Cured-In-Place Pipe (CIPP)

A resin saturated fabric linerthat is installed into adeteriorated pipeline and then

cured using Heat , Ambient orUltra Violet Light

WITHOUTEXCAVATION


3/39

What is Folded Pipe (FP)A factory manufactured

pipe that is folded foreasy delivery in coilsthen reheated andinstalled into an existingpipeline

WITHOUTEXCACATION


4/39

Where Can CIPP or Folded Pipe BeUsed?

Municipal sewers, laterals,

water mains and drainagepipes, outfall pipes, forcemains, etcIndustrial, sewer ,water,drainage, gas mains,process pipes,downspouts, air vents

Highway & railroadculvertsOther piping systems


5/39

Pipeline Solutions With CIPPStructural renewal

Structural reinforcementInfiltration reductionInflow reduction

of..M.H. M.H. Lining

Lateral pipe lining

Sectional Lining

Sizes 4-120


6/39

Pipeline Solutions With Folded PipeStructural renewal

Structural reinforcementInfiltration reductionInflow reduction

of..M.H. M.H. Lining

Sizes 4-24


7/39

ResinsPolyester Vinyl Ester Epoxy

Liner FabricFiberglass Carbon Fiber Kevlar

Installation

Typical CIPP Liner MaterialsMaterials

CoatingsUrethane Polyethylene PVC


8/39

The Cured CIPP Product

The typical product consists

of either a polyester fabric,fiberglass or combinationliner saturated with either apolyester, vinylester orepoxy thermoset resin.The product can be curedusing hot water, steam,

ultra-violet light or ambienttemperatures


9/39

Typical CIPP Thermoset ResinsEpoxy

Vinyl Ester

Polyester

PolyesterMost common for typicalsewer applications

Vinyl esterIndustrial or special wasteapplications

Higher corrosion resistancePressure applications

EpoxyIndustrial & potable water

applicationsPressure applicationsHigher temperatureapplications


10/39

Polyester Fabric Liner Preparation

A felt liner is fabricated of polyester needled, woven or knitfabric and coated with an impervious film such as polyethylene,polyurethane or PVC. Just prior to installation, the fabric liner issaturated with a heat activated resin using a vacuum impregnationprocess. All excess resin is removed by pulling the liner through aspecially designed set of rollers. The saturated liner can be storedin a refrigerated truck for several days until installation into the

host pipe.


11/39

Polyester Fabric Resin Impregnation

A Vacuum is created onthe custom manufacturedliner to remove air and toensure thorough resindistribution

Resin, with dye, ispumped into the liner anddisplaces the evacuated airsaturating the inside of theliner


12/39

Fiberglass Liner PreparationFiberglass Liners are manufactured several ways:

1. A liner is fabricated of a specially designed fiberglassmaterial and encased in impervious film such aspolyethylene, polyurethane or PVC. The fiberglassliner is saturated with either a heat activated or UVLight activated resin. All excess resin is removed bypulling the liner through a specially designed set ofrollers

2. UV Light activated resin is saturated into the rawfiberglass material then spirally wound into a roundtube. No vacuumimpregnation is required

3. UV Light activated resinfiberglass liners typicallyhave an extended shelf lifeof up to six (6) monthswithout refrigeration


13/39

Typical Folded Pipe MaterialsFolded Pipe material are thermoplastic in nature. The

material can typically be re-heated several times toaccommodate installation into an existing pipelineMaterials include:High Density Polyethylene (HDPE)Modified Polyvinyl Chloride (PVC) Type #1Polyvinyl Chloride (PVC) Type #2


14/39

Folded Pipe (HDPE)

Typically manufacturedTypically manufacturedin ain a UU shape 4shape 4 to 24to 24 and in some cases largerand in some cases largerCoiled on large verticalCoiled on large verticaldrumsdrumsReferences ASTM FReferences ASTM F --1533, ASTM F1533, ASTM F --16061606


15/39

Folded Pipe (PVC) Type #1

PVC Based ProductsPVC Based ProductsType #1Type #1Reference ASTM FReference ASTM F --

1504 & F1504 & F --1947194744 to 15to 15 diametersdiameters


16/39

Folded Pipe (PVC) Type #2

PVC Based ProductsPVC Based ProductsType #2Type #2Reference ASTM FReference ASTM F --1871 & F1871 & F --1867186744 to 24to 24 and largerand larger


17/39

Cured-In-Place Pipe (CIPP) &Folded Pipe (FP)

Typical Project Execution


18/39

CIPP & Folded Pipe TechnologyRequirements

The liner materials must be designed

and selected for the specificapplication (sewer, water, industrial,etc)The installer must be experienced inthe technology (minimum number ofinstallations, years of experience, etc))Installation technique and equipmentspecific to the technology and curingtechnique applied (equipment should

be integral part of technology)The Installed product must be testedand certified to meet the specificationrequirements


19/39

Pre-Project Data CollectionDocument size, length and condition ofline(s) (using PACP standards)Document pipe material(s)Document size change(s) within a linesectionVerify line and grade of pipeIdentify necessary pipe repairs to bedone before liner installationIdentify all infiltration into the pipe andrepair major leaks or install a pre-linerDetermine peak flow volumes in pipe

Determine traffic maintenancerequirementsIdentify all service connections as activeor inactive


20/39

Lateral Connection Identification

Quantity to be reinstatedLocations to be documentedAbandoned servicesidentified


21/39

Pre-Installation ConsiderationsEquipment staging area isrequired at or near accessmanholeThe existing pipe must be pre-televised and surveyed todetermine its condition

Some excavation may berequired for larger diameterliners or for point repairsAll existing flows in the pipe

must be plugged or by-passedThe existing pipe must becleaned to remove ALL debris,silt, roots, sand, etc


22/39

The resin impregnated tube is either inverted, using

air or water pressure or pulled into the old pipethrough the existing access or manhole structure

Heat Cured CIPP Liner Installation


23/39

CIPP Curing with Hot Water

Boiler Truck

CirculationPump

Once in place and properly inflated the liner iscured using hot water heat. Cure temperatures are

monitored at access points and at each end of theinstallation


24/39

CIPP Curing With SteamOnce in place and properly inflated the liner is curedusing steam heat . Cure temperatures are monitored

at access points and at each end of the installation


25/39

U V Light Cured Liner InstallationA fiberglass liner is pulled into the host pipe. A lighttrain & CCTV is inserted in one end and pulled to the

opposite end recording the pre-cure condition of theliner. The light train is then pulled back through theinside of the liner, at a regulated speed, with theCCTV camera recording the actual curing of theliner.


26/39

CIPP Curing With Ultra-Violet Light

Once in place and inflated the liner is cured using ultra

Violet Light. Infrared sensors record the entire liner cure


27/39

Folded Pipe Liner Installation

Folded pipe is pulled intothe existing pipeThe pipe is then heated

and unfolded to fit tightlywithin the existing pipeSteam is typically used toprocess to liner


28/39

Folded Pipe Processing With SteamFolded Pipes are typically re-heated, to various

degrees, to accommodate installation requirementsSteam and pressure are typically used to expandand process the pipe to fit tight within the existingpipe


29/39

Manhole Termination

ExistingPipe

Pipe Seal

New CIPPPipe

A seal can beinstalled between thenewly installed linerand the existing pipeto preventgroundwatermigration into themanhole.

Seals can be eitherhydrophilic or grout


30/39

Installed CIPP or Folded Pipe

The installed pipe shouldbe free of wrinkles orother defects that willprevent the proper

operation of the pipelineThe installed pipeshould have theprojected longevity asspecified


31/39

Lateral Re-Connection

Lateral Connection Dimple

Identify lateral connection dimplesfrom CCTV inspection and/or pre-

liner installation measurementCut opening each live lateralconnectionLeave each abandoned connection

closed as directed by the customer


32/39

Post Installation Documentation

The thickness of the liner ismeasuredThe physical properties of theinstalled material are testedThe chemical resistanceverified

The water tightness is verifiedThe physical appearance isrecorded

The specified design requirements must be verified afterthe liner has been installed and cured in the field


33/39

CIPP ASTM Standards ASTM F1216 Standard Practice for Rehabilitation of ExistingPipelines and Conduits by the Inversion andCuring of a Resin-Im pregnated Tube

ASTM F1743 Standard Practice for Rehabilitation of ExistingPipelines and Conduits by Pulled in-PlaceInst allation of Cured-in-Place Thermosetting Resin Pipe (CIPP )

ASTM D5813 - Standard Specification for Cured-In-PlaceThermosetting Resin Sewer P iping Systems

ASTM F2019 Standard Practice for the Rehabilitation of ExistingPipelines and Conduits by t he Pulled in P lace installation of GlassReinforced Plastic (GRP) Cured-In-P lace Thermosett ing ResinPipe (CIPP )


34/39

Folded Pipe ASTM StandardsHDPE Based ProductsHDPE Based Products

ASTM FASTM F --1533 & ASTM F1533 & ASTM F --16061606PVC Based Products Type #1PVC Based Products Type #1ASTM FASTM F --1504 & ASTM F1504 & ASTM F --19471947PVC Based Products Type #2PVC Based Products Type #2

ASTM FASTM F --1871 & ASTM F1871 & ASTM F --18671867


35/39

Why Use CIPP or Folded PipeTechnology?

Typically no excavation requiredNo disruption of adjacent utilities or surfacepavementInstalled through existing manholesLengths over several thousand feet can beinstalled in a continuous joint-less sectionCan be installed in a variety of pipe cross-sectionsFlow characteristics are typically improved andfuture maintenance is reducedLateral pipes are reconnected robotically


36/39

Designed for specific applicationsMany years of successful installationsSignificantly lower in cost than traditionalexcavation and replacementLong design life when properly installed and testedFast installationsMinimal social impactUnique Installations

Why Use CIPP or Folded PipeTechnology?


37/39

Conclusion

Trenchless Pipe Trenchless Pipe RenewalTechnologies RenewalTechnologies are notare notmagic but are tools that need to be properly utilized.magic but are tools that need to be properly utilized.Projects must be evaluated, good engineeringProjects must be evaluated, good engineering

practice applied and the correct technologiespractice applied and the correct technologiesselected to achieve the desired end resultselected to achieve the desired end result


38/39

Any QuestionsContact

Gerhard Gerry P. Muenchmeyer, P.E.Director of Engineering & Operations

Reline America, IncSaltville, VA

800 866 998-0808Email [email protected]

Irv GemoraExecutive Director

NASSCO410 486-3500

Email [email protected]

Web www.nassco.org


39/39

Credits & DisclaimerMaterial contained in this Presentation has been obtained and

compiled from various related industry manufacturers,contractors, engineers, installers and end users. All partiesinvolved acknowledge the need to disseminate relevantinformation to promote (trenchless technology) productadvantages and rehabilitation techniques for the benefit of allconcerned.

This slide presentation shows products and systems made byspecific companies. This is not intended as an endorsement ofthese products and systems or to imply that there are not other

products and systems which perform the same functions.

Documents

Mainline Pipe Rehabilitation Using CIPP & Folded Pipe Technology