Post on 07-Apr-2018
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Trenchless Technology for
Sanitary and Storm Rehabilitation
Presented by
Jeff Beck, P.E.Insituform
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Trenchless Technology
Cured in Place Pipe RehabilitatingSanitary and Storm Sewers
New CIPP innovationsAISC Air Inversion Steam Cure
iPlus Composite
iPlus Infusion
Green Initiative using Trenchless
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Global Infrastructure Crisis
2009 Report Card for AmericasInfrastructure per ASCE Wastewater = D Bridges = C
Investing in infrastructure, has proven to bebeneficial in the past, with a $7 return for every$1 of investment
Trenchless (no-dig) technologies are more cost-
effective and less disruptive pipeline solutions toother traditional methods These technologies benefit the health of people
and the economy
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Global Water Crisis
The Clean Water Act wasestablished 35 years ago tohelp prevent spills andenvironmental damage
The EPA estimates there aremore than 40,000 sewer spillseach year
Sinkholes are becoming a more
common occurrence Insituforms flagship cured-in-place pipe technology helps toaddress these and otherproblems
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Insituform was established in 1971 with the invention ofthe cured-in-place pipe method of underground pipelinerehabilitation
Developed by EricWood in the UK,the Insituformprocess was the firstto rehabilitateunderground
pipelines withoutdigging anddisruption
Insituform History
Insituform working in Denver, Colorado
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Developed in 1971, cured-in-place pipe (CIPP) is atrenchless technologydeveloped by Insituform
The end product is a
jointless, seamless, pipe-within a pipe that protectsagainst spills, breaks andpipeline leakage
Insituform has installed over15,000 miles of CIPP andhas been the industryleader for over 35 years
What is CIPP?
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Benefits
Eliminate infiltration and exfiltration
Restore structural integrity
Prevent sinkholes and surface settlement
Eliminate joints, root intrusion and leaks
Increase flow capacity
Protect pipes from corrosion
Increase pipe strength
Reduce maintenance
Minimal traffic disruption
Fewer social costs to open-cut
Suitable for irregularly shaped pipes and changesin pipe diameter
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CIPP Installation
Thermosetting resin isinjected into a felt tube
The tube is inserted into anexisting host pipeline by
either pull-in or inversion The tube is inflated to thesize of the host pipe
The CIPP tube is cured
using hot water or steam Ends are cut and the final
product is a fully-functionalpipe-within-a-pipe
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CIPP Installation
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Trenchless technologyis superior to dig andreplace for a variety of
reasons Cost-effectiveness
Ease of Design
Production rates
Extends undergroundassets
Benefits environment
Why Trenchless?
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CIPP Affordability
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Open Cut Pricing
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Wet Out
Insituform has seven wet out facilitiesstrategically located throughout North America
All facilities are ISO-
certified and complyto industry safetystandards
Quality is constantly
regulated and makesuse of the mostadvanced wet outtechnologies
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Resin - Once cured, thermosetting resin retainsits shape with no residual memory.
Resin types:
1. Polyester2. Vinyl Ester
3. Epoxy
Polyester resins are most used in gravity sewerrehabilitation due to their high flexural modulus,low tensile elongation and good chemicalresistance.
Polyester
Vinyl ester
Epoxy
Resin
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CIPP Technical Envelope
Diameter Range 6 to 96 inches
pH Range .5 to 10.5
Effluent Temperature Up to 140
Fully Deteriorated Pipe Condition Yes
Partially Deteriorated Pipe Condition YesBends Yes
Offset Joints Yes
Diameter Changes Yes, without manhole access
Thickness Changes Yes, without manhole access
Typical Shot Length 200 ft. to 1,000 ft.
Host Pipe Shape All Shapes
Host Pipe Material All Materials
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Air Inversion Steam Cure (AISC)
Produces same high quality end product inshortened installation cycle
Specialized installation equipment tominimize footprint at manhole
Insituform material modified for steam cure
Available for a variety of diameter pipe
(8 72)
Over 2 million feet installed using steam todate
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High energy steam cureshortens installationcycle
Off street installationmade with littledisruption
Steam eliminates gradelimitations
Minimal water requiredfor cure
Air-Inversion Steam-Cure (AISC)
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30 Sewer St. Louis MSD AISC
Before Lining Post-Lining
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iPlus Composite
Reinforced with carbon and glass fibers, iPlusComposite cost-effectively providesenvironmental benefits, increases flow rate,minimizes disruption and won Innovative NewProduct Award at No-Dig in 2007.
iPlus Infusion
iPlus Infusion is Insituforms cured-in-place pull-in and steam-cure method. It offers superiorphysical properties, minimal disruption, andenvironmental benefits for small diameter pipes.
Insituform has developed new CIPP solutionsfor trenchless construction
Innovative Technology
iPlus Composite and iPlus Infusion
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iPlus Composite
iPlus Composite issuitable for therehabilitation ofmedium to largediameter pipelines
Reinforced withcarbon or glass fibers,it provides morestrength and greatercapacity
Thinner walls = lessresin = better for theenvironment
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Close-up
iPlus Composite
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PVC
sewn-seamcoating (PP)
iPlus Composite
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iPlus Composite
Sandwichtechnology
High modulus(stiff) outerskins bondedto a core with
lower materialproperties
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iPlus Infusion - ASTM 1743
Small installationfootprint minimizesdisruption
Ideal for small backyardeasements
700+ ft installations
Boiler truck can belocated 250 ft from MH
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iPlus Infusion
Shorter cycle time Smaller footprint
Shorter seweroutage Reduced equipment
on street
Minimal trafficdisruption Greater installation
flexibility
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iPlus Infusion Installation
Step One: Tubeswet-out usingcontrolled resinimpregnationsystem
Step Two:A resin-saturated tube is
pulled into damagedpipe
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iPlus Infusion Installation
Step Three:Air isused to inflate the
tube and steam isused to cure the resin
Step Four: Servicelaterals are restoredinternally
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Steam Cure
50% reduction in energyusage and 98% reduction inwater usage over traditionalwater inversion/hot water
cure Virtually eliminates discharge
of process water into sewers
No grade limitations
Shorter cool down allowslateral reinstatement to takeplace sooner
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Reduced Equipment Requirements
Smallest jobsite footprintof any CIPP process
Portable equipment
Ideal for off-road
installations Minimal traffic disruption
Reduces stress on tube
Shot lengths up to 230m
Meets or exceeds thephysical properties setforth in ASTM F1743
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Technical Envelope Infusion
Diameter Range 4 inch 12 inch
pH Range .5 10.5
Effluent Temperature Up to 140 F
Fully Deteriorated Yes
Partially Deteriorated Yes
Bends No
Offset Joints YesShot Length Up to 750 feet
Host Pipe Material All, except truss
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Environmental Benefits
Insituform uses air and steamenergy where applicable Cuts down water use by 95%
Tube can be made from up to98% recycled material
iPlus Composite and othertechnologies cut down onneed for resin and otherpetroleum-based products
CIPP rehabilitation canprevent sewer spills, oil spillsand water main breaks
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Questions?