LMK Technologies, LLC Ex. 2024
`BLD Services, LLC v. LMK Technologies, LLC
`IPR2014-00770
`
`
`1
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`

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`Specification for Lateral Reconstruction
`
`of Sanitary Sewers by
`MaxLiner W
`
`Intent
`
`(1.1)
`
`is the intent of this specification to provide for the reconstruction of existing
`It
`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, MaxLinerTM should extend over the length of the installation
`in a continuous,
`tight-fitting, structural, corrosion resistant and watertight CIPP
`pipe-within-a-pipe.
`
`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 MaxLinerTM plain felt and knitted
`polyester liners with no reinforcement as part of the composite.
`
`(2.2)1. MaxLinerTM 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.
`
`2
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`

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`(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 MaxLinerTM tube shall be
`selected to match the configuration of the existing lateral service, i.e.,
`bends and diameter transitions.
`
`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 F4216 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)
`
`Wastewater Collection Systems Maintenance and Rehabilitation- 10‘“ Edition:
`Chapters titled “TV Inspection” and “Sewer Line Cleaning.”
`
`Pipe Design
`
`(4.1)
`
`The MaxLinerTM 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” MaxLinerTM
`6” and 8” MaxLinerTM
`
`Minimum thickness — 3mm
`Minimum thickness — 4mm
`
`2
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`3
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`(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.
`
`Installation Responsibilities and Procedures
`
`(5.1)
`
`(5.2)
`
`(5.3)
`
`(5.4)
`
`(5.5)
`
`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.
`
`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.
`
`Inspection of pipelines shall be performed by
`TV Inspection of Pipelines-
`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
`MaxLinerTM 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.
`
`Resin lmpregnated 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 W to thoroughly saturate
`the tubes felt fiber prior to installation. The impregnated tube shall be free of
`pinholes, resin voids and other defects after impregnation is completed.
`
`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 MaxLinerTM 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 MaxLinerTM Tube in order to hold pressure and maintain a close
`fit during processing.
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`4
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`(5-5) 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 MaxLinerTM 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.
`
`the hardened MaxLinerTM to a
`(5.6.1)3. Cool-down — The Installer shall cool
`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.
`
`Clean-up
`
`(6.1) Upon acceptance of the installation work, the Installer shall reinstate the project
`area affected by his operations.
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`5
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