ASTM F2994-13
(Practice)Standard Practice for Utilization of Mobile, Automated Cured-In-Place Pipe (CIPP) Impregnation Systems
Standard Practice for Utilization of Mobile, Automated Cured-In-Place Pipe (CIPP) Impregnation Systems
SIGNIFICANCE AND USE
4.1 This practice is for use by installers who are involved in the rehabilitation of conduits through the use of a mobile, automated CIPP impregnation system to manufacture resin impregnated tube installed through an existing conduit. As for any practice, modifications may be required for specific job conditions.
SCOPE
1.1 This practice describes the procedures for the impregnation of 4 to 48 in (100 to 1200 mm) diameter cured-in-place pipe utilizing mobile, automated systems. Temporary impregnation facilities set up at the jobsite (“over-the-hole” wet outs) are not covered under this standard. Once resin saturation is complete, the wet out liner is then used to rehabilitate existing gravity flow or pressure pipelines, process piping, electrical conduits or ventilation systems.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
General Information
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: F2994 − 13
Standard Practice for
Utilization of Mobile, Automated Cured-In-Place Pipe (CIPP)
Impregnation Systems
This standard is issued under the fixed designation F2994; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3.2 Definitions of Terms Specific to This Standard:
3.2.1 certificate of analysis (COA), n—Documented evi-
1.1 This practice describes the procedures for the impreg-
dence of the quality control testing performed on the resin and
nation of 4 to 48 in (100 to 1200 mm) diameter cured-in-place
catalyst formulations. As a minimum, the COA shall include
pipe utilizing mobile, automated systems. Temporary impreg-
the product name; batch number; date of manufacture; name,
nation facilities set up at the jobsite (“over-the-hole” wet outs)
address and phone number of manufacturer; test methods; test
are not covered under this standard. Once resin saturation is
limits and actual results.
complete, the wet out liner is then used to rehabilitate existing
3.2.2 CIPP automation, n—The use of PLCs and HMIs to
gravity flow or pressure pipelines, process piping, electrical
control the operation of a mobile impregnation unit. As a
conduits or ventilation systems.
minimum, the following functions shall be controlled and
1.2 The values stated in inch-pound units are to be regarded
monitored by the CIPP automation process: Operating speed
as standard. The values given in parentheses are mathematical
and pressure of resin and catalyst pumps; resin and catalyst
conversions to SI units that are provided for information only
temperature, mixing ratio, tank levels, utilization, recirculation
and are not considered standard.
anddispense;vacuumpumpoperation;calibrationrollerspeed,
1.3 This standard does not purport to address all of the
direction and gap setting. Data from all installations shall be
safety concerns, if any, associated with its use. It is the
electronically stored on an internal memory device integrated
responsibility of the user of this standard to establish appro-
into the HMI and shall be downloadable to an external storage
priate safety and health practices and determine the applica-
device for project quality assurance recordkeeping. The data
bility of regulatory limitations prior to use.
stored shall at a minimum include: project name, identification
number and location; date and time of processing wet out;
2. Referenced Documents
CIPP liner diameter, thickness and length; and resin and
2.1 ASTM Standards:
catalyst temperatures and volumes utilized. Additional data
D1600 Terminology forAbbreviatedTerms Relating to Plas-
recorded may include the calibration roller distance, gap
tics
setting and roller speed.
D5813 Specification for Cured-In-Place Thermosetting
3.2.3 cured-in-place pipe (CIPP), n—a hollow cylinder
Resin Sewer Piping Systems
containing a nonwoven or a woven material, or a combination
F412 Terminology Relating to Plastic Piping Systems
of nonwoven and woven material surrounded by a cured
F1216 Practice for Rehabilitation of Existing Pipelines and
thermosetting resin. Plastic coatings may be included. This
Conduits by the Inversion and Curing of a Resin-
pipe is formed within an existing pipe. Therefore, it takes the
Impregnated Tube
shape of and fits tightly to the existing pipe.
3. Terminology
3.2.4 electric calibration roller, n—Electrically driven or
3.1 Definitions—Definitions are in accordance with Termi- variable speed hydraulic drive device used to assist with the
nology F412 and abbreviations are in accordance with Termi- impregnation process. Resin saturated liners shall pass through
nology D1600, unless otherwise specified.
the rollers at a set speed and gap setting. The gap setting shall
be adjustable and measurable via a mechanical scale or the
This practice is under the jurisdiction of ASTM Committee F17 on Plastic
electronic display of the HMI. The linear rate of the CIPPliner
Piping Systems and is the direct responsibility of Subcommittee F17.67 on
processed through the roller shall be adjustable via a variable
Trenchless Plastic Pipeline Technology.
speed drive or the electronic display of the HMI.
Current edition approved Aug. 1, 2013. Published September 2013. DOI:
10.1520/F2994-13
3.2.5 impregnation module, n—fully contained, insulated
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
system used in the production of CIPP on a mobile impregna-
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
tion unit.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 3.2.5.1 Discussion—ThemoduleshalloperatethroughCIPP
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F2994 − 13
automation and as a minimum shall include the following used. The pumps shall be capable of delivering the required
components: precision pumps and metering devices, bulk resin volume of mixed resin to the tube during impregnation in a
and catalyst storage tanks with temperature control system, suitable time frame and shall also be capable of pulling suction
roller bed, work table, external connections for resin and for tank filling.
catalyst filling, compatible piping, hoses, directional flow
7.2 Piping, fittings and tanks—All piping, fittings and tanks
control valves, vacuum system, hoses and connections and
used to convey, circulate and store resin and catalyst shall be
resin mixing chamber including static mixer. The vacuum
made of a material suitable for constant contact with the
pump may be installed inside or outside the insulated module.
respective material(s). Resin and catalyst tanks shall meet all
3.2.6 mobile impregnation unit, n—amobilesystem,usually
federal, state and local regulations for material transport.
permanently mounted on a trailer or truck, used to manufacture
7.3 Flow meter—Precision metering device used to measure
CIPP at or nearby the point of installation using CIPP automa-
resin and catalyst quantities with an accuracy tolerance of 6
tion.
1.0% or better by volume.
3.3 Acronyms:
7.4 Temperature control system—A heat exchange system
3.3.1 PLC, n—programmable logic controller
used to regulate resin and catalyst temperatures. Acceptable
3.3.2 HMI, n—human machine interface (touch screen)
methods may include utilizing temperature controlled air or
water, glycol lines, or heat tracing and insulation.
4. Significance and Use
7.5 Static mixer—Plastic or stainless steel device consisting
4.1 This practice is for use by installers who are involved in
of mixing elements within a carrier tube that is used to
the rehabilitation of conduits through the use of a mobile,
thoroughly mix resin and catalyst prior to liner impregnation.
automated CIPP impregnation system to manufacture resin
The static mixer shall be appropriately designed and sized for
impregnated tube installed through an existing conduit. As for
the viscosity and flow rate of the mixed resin utilized.
any practice, modifications may be required for specific job
7.6 Vacuum system—A device used to remove air from a
conditions.
liner and assist with liner impregnation. The vacuum pump
3 3
shall have a minimum capacity of 9.4 ft /min (16 m /hr) for up
5. Materials
3 3
to 12 in. (300 mm) diameter CIPPand 23.5 ft /min (40 m /hr)
5.1 All materials shall be handled, packaged, marked and
for CIPP greater than 12 in. (300 mm). The vacuum system
transported in accordance with local, state and federal regula-
shall have an integrated vacuum regulator, vacuum gauge with
tions and requirements.
a range of 0 to -14.5 psi (0 to -1.0 bar), distribution piping/
5.2 Liner tube—The liner tube shall consist of one or more
hoses with the necessary connections and service points, and a
layers of flexible needled felt or fiberglass, or both, an
ball valve and suction cup attached to the terminating end of
equivalent nonwoven or woven material, or a combination of
each vacuum hose. Vacuum hose shall be made of a suitable
nonwoven and woven materials or fiberglass, or a combination
material, such as clear reinforced PVC, with a minimum inside
thereof, capable of carrying resin, withstanding installation
diameter of 0.375 in (9.5 mm). Suction cups shall be 2.5
pressures and curing temperatures. The tube shall be compat-
Bellows or similar style and capable of accommodating flat,
ible with the resin system used. The outside layer of the tube
concave or slanted surfaces.
shall be coated or protected with a material that is compatible
with the resin system used. The tube shall be fabricated to a
8. System Operation
size that, when installed, will tightly fit the internal circumfer-
8.1 The mobile impregnation unit shall be supplied with
ence and the length of the original conduit.
adequate power and internal memory for data storage, and be
5.3 Resin—A formulated resin and catalyst that is compat-
equipped with an emergency stop.
ible with the automation process and end use application shall
8.2 The HMI shall be utilized to input project specific
be used. The resin shall have an initiation temperature for cure
information. This includes customer and jobsite data, CIPP
that is less than 180°F (82.2°C).
diameter, thickness and length or other applicable data points,
5.4 Catalyst—A curing agent, hardener, initiator, diluent,
or a combination thereof.
admixture, or combination thereof.
8.3 Resin and catalyst tank levels and temperatures shall be
checked prior to using the mobile impregnation system. If
6. Design Considerations
additional resin is needed, material inventory should be in-
6.1 Wall Thickness—The CIPP wall thickness shall
...
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