1、Designation: F 1743 08An American National StandardStandard Practice forRehabilitation of Existing Pipelines and Conduits by Pulled-in-Place Installation of Cured-in-Place Thermosetting ResinPipe (CIPP)1This standard is issued under the fixed designation F 1743; the number immediately following the
2、designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This practice describes t
3、he procedures for the recon-struction of pipelines and conduits (4 to 96 in. (10 to 244 cm)diameter) by the pulled-in-place installation of a resin-impregnated, flexible fabric tube into an existing conduit andsecondarily inflated through the inversion of a calibration hoseby the use of a hydrostati
4、c head or air pressure (see Fig. 1). Theresin is cured by circulating hot water or by the introduction ofcontrolled steam into the tube. When cured, the finishedcured-in-place pipe will be continuous and tight fitting. Thisreconstruction process may be used in a variety of gravity andpressure applic
5、ations such as sanitary sewers, storm sewers,process piping, electrical conduits, and ventilation systems.1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not
6、 considered standard.e values stated in inch-poundunits are to be regarded as the standard. The values given inparentheses are for informational purposes only.NOTE 1There are no ISO standards covering the primary subjectmatter of this practice.1.3 This standard does not purport to address all of the
7、safety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D 543 Practices for Evaluati
8、ng the Resistance of Plastics toChemical ReagentsD 638 Test Method for Tensile Properties of PlasticsD 790 Test Methods for Flexural Properties of Unreinforcedand Reinforced Plastics and Electrical Insulating MaterialsD 903 Test Method for Peel or Stripping Strength of Adhe-sive BondsD 1600 Terminol
9、ogy for Abbreviated Terms Relating toPlasticsD 1682 Methods of Test for Breaking Load and Elongationof Textile Fabrics3D 3039/D 3039M Test Method for Tensile Properties ofPolymer Matrix Composite MaterialsD 3567 Practice for Determining Dimensions of “Fiber-glass” (Glass-Fiber-Reinforced Thermosetti
10、ng Resin) Pipeand FittingsD 4814 Specification forAutomotive Spark-Ignition EngineFuelD 5813 Specification for Cured-In-Place ThermosettingResin Sewer Piping SystemsE 797 Practice for Measuring Thickness by Manual Ultra-sonic Pulse-Echo Contact MethodF 412 Terminology Relating to Plastic Piping Syst
11、emsF 1216 Practice for Rehabilitation of Existing Pipelines andConduits by the Inversion and Curing of a Resin-Impregnated Tube2.2 AWWA Standard:4M28 Manual on Cleaning and Lining Water Mains42.3 NASSCO Standard:5Recommended Specifications for Sewer Collection SystemRehabilitation3. Terminology3.1 G
12、eneralDefinitions are in accordance with Terminol-ogy F 412. Abbreviations are in accordance with TerminologyD 1600, unless otherwise indicated.3.2 Definitions of Terms Specific to This Standard:3.2.1 calibration hosean impermeable bladder which is1This practice is under the jurisdiction of ASTM Com
13、mittee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.67 onTrenchless Plastic Pipeline Technology.Current edition approved Nov. 1, 2008. Published November 2008. Originallyapproved in 1996. Last previous edition approved in 2003 as F174396 (2003).2For referenced AS
14、TM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Withdrawn. The last approved version of this historical standard is referenced
15、on www.astm.org.4Available from American Water Works Association (AWWA), 6666 W. QuincyAve., Denver, CO 80235, http:/www.awwa.org.5Available from the National Association of Sewer Service Companies,NASSCO 11521 Cronridge Drive, Suite J Owings Mills, MD 21117, http:/www.nassco.org.1*A Summary of Chan
16、ges section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.inverted within the resin-impregnated fabric tube by hydro-static head or air pressure and may optionally be removed orremain in place as
17、a permanent part of the installed cured-in-place pipe as described in 5.2.2.3.2.2 cured-in-place pipe (CIPP)a hollow cylinder con-sisting of a fabric tube with cured (cross-linked) thermosettingresin. Interior or exterior plastic coatings, or both, may beincluded. The CIPP is formed within an existi
18、ng pipe and takesthe shape of and fits tightly to the pipe.3.2.3 delaminationseparation of layers of the CIPP.3.2.4 dry spotan area of fabric of the finished CIPP whichis deficient or devoid of resin.3.2.5 fabric tubeflexible needled felt, or equivalent, wo-ven or nonwoven material(s), or both, form
19、ed into a tubularshape which during the installation process is saturated withresin and holds the resin in place during the installation andcuring process.3.2.6 inversionthe process of turning the calibration hoseinside out by the use of water pressure or air pressure.3.2.7 lifta portion of the CIPP
20、 that is a departure from theexisting conduit wall forming a section of reverse curvature inthe CIPP.4. Significance and Use4.1 This practice is for use by designers and specifiers,regulatory agencies, owners, and inspection organizations whoare involved in the rehabilitation of conduits through the
21、 use ofa resin-impregnated fabric tube pulled-in-place through anexisting conduit and secondarily inflated through the inversionof a calibration hose. Modifications may be required forspecific job conditions.5. Recommended Materials and Manufacture5.1 GeneralThe resins, fabric tube, tube coatings, o
22、r othermaterials, such as the permanent calibration hose when com-bined as a composite structure, shall produce CIPP that meetsthe requirements of this specification.5.2 CIPP Wall CompositionThe wall shall consist of aplastic coated fabric tube filled with a thermosetting (cross-linked) resin, and i
23、f used, a filler.5.2.1 Fabric TubeThe fabric tube should consist of one ormore layers of flexible needled felt, or equivalent, woven ornonwoven material(s), or both, capable of carrying resin,withstanding installation pressures, and curing temperatures.The material(s) of construction should be able
24、to stretch to fitirregular pipe sections and negotiate bends. Longitudinal andcircumferential joints between multiple layers of fabric shouldbe staggered so as not to overlap. The outside layer of thefabric tube should have an impermeable flexible coating(s)whose function is to contain the resin dur
25、ing and after fabrictube impregnation. The outer coating(s) must facilitate moni-toring of resin saturation of the material(s) of construction ofthe fabric tube. The fabric tube should be fabricated to a sizethat, when installed, will tightly fit the internal circumferenceand the length of the origi
26、nal conduit. Allowance should bemade for circumferential and longitudinal stretching of thefabric tube during installation. As required, the fabric tubeshould meet minimum tensile strength requirements in thelongitudinal and transverse directions as specified in 7.1. Allthe material(s) of constructi
27、on for the fabric tube should becompatible with the resin system used.5.2.2 Calibration Hose:5.2.2.1 Removable Calibration HoseThe removable cali-bration hose should consist of an impermeable plastic, orimpermeable plastic coating(s) on flexible woven or nonwovenmaterial(s), or both, that do not abs
28、orb resin and are capable ofbeing removed from the CIPP.5.2.2.2 Permanent Calibration HoseThe permanent cali-bration hose should consist of an impermeable plastic coatingon a flexible needled felt or equivalent woven or nonwovenmaterial(s), or both, that are capable of absorbing resin and areof a th
29、ickness to become fully saturated with resin. Thecalibration hose should be translucent to facilitate post-installation inspection. The calibration hose should be fabri-cated to a size that, when installed, will tightly fit the internalcircumference and the length of the resin saturated fabric tube.
30、Once inverted, the calibration hose becomes part of the fabrictube, and once properly cured, should bond permanently withthe fabric tube. The properties of the calibration hose shouldmeet minimum tensile strength requirements in the longitudi-nal and transverse directions as specified in 7.1. All th
31、ematerial(s) of construction for the calibration hose should becompatible with the resin system used.5.2.3 ResinA chemically resistant isophthalic based poly-ester, or vinyl ester thermoset resin and catalyst system or anFIG. 1 Cured-in-Place Pipe Installation MethodsF1743082epoxy resin and hardener
32、 that is compatible with the installa-tion process should be used. The resin should be able to cure inthe presence of water and the initiation temperature for cureshould be less than 180F (82.2C). The cured resin/fabric tubesystem, with or without the calibration hose, shall be expectedto have as a
33、minimum the initial structural properties given inTable 1. These physical properties should be determined inaccordance with Section 8. The cured resin/fabric tube system,with or without the calibration hose, should meet the minimumchemical resistance requirements as specified in 7.2.6. Installation
34、Recommendations6.1 Cleaning and Pre-Inspection:6.1.1 Prior to entering access areas, such as manholes, andperforming inspection or cleaning operations, an evaluation ofthe atmosphere to determine the presence of toxic or flammablevapors or lack of oxygen must be undertaken in accordancewith local, s
35、tate, or federal safety regulations.6.1.2 Cleaning of PipelineAll internal debris should beremoved from the original pipeline. Gravity pipes should becleaned with hydraulically powered equipment, high-velocityjet cleaners, or mechanically powered equipment in accordancewith NASSCO Recommended Specif
36、ications for Sewer Col-lection System Rehabilitation. Pressure pipelines should becleaned with cable attached devices or fluid propelled devicesin accordance with AWWA M28.6.1.3 Inspection of PipelinesInspection of pipelinesshould be performed by experienced personnel trained inlocating breaks, obst
37、acles, and service connections by closed-circuit television or man entry. The interior of the pipelineshould be carefully inspected to determine the location of anyconditions that may prevent proper installation of the impreg-nated tube, such as protruding service taps, collapsed orcrushed pipe, and
38、 reductions in the cross-sectional area of morethan 40 %. These conditions should be noted so that they canbe corrected.6.1.4 Line ObstructionsThe original pipeline should beclear of obstructions such as solids, dropped joints, protrudingservice connections, crushed or collapsed pipe, and reductions
39、in the cross-sectional area of more than 40 % that may hinderor prevent the installation of the resin-impregnated fabric tube.If inspection reveals an obstruction that cannot be removed byconventional sewer-cleaning equipment, then a point-repairexcavation should be made to uncover and remove or rep
40、air theobstruction.6.2 Resin ImpregnationThe fabric tube should be totallyimpregnated with resin (wet-out) and run through a set ofrollers separated by a space, calibrated under controlled con-ditions to ensure proper distribution of resin. The volume ofresin used should be sufficient to fully satur
41、ate all the voids ofthe fabric tube material, as well as all resin-absorbing materialof the calibration hose at nominal thickness and diameter. Thevolume should be adjusted by adding 3 to 15 % excess resin toallow for the change in resin volume due to polymerization, thechange in resin volume due to
42、 thermal expansion or contrac-tion, and resin migration through the perforations of the fabrictube and out onto the host pipe.6.3 BypassingIf bypassing of the flow is required aroundthe sections of pipe designated for reconstruction, the bypassshould be made by plugging the line at a point upstream
43、of thepipe to be reconstructed and pumping the flow to a downstreampoint or adjacent system. The pump and bypass lines should beof adequate capacity and size to handle the flow. Serviceswithin this reach will be temporarily out of service.6.3.1 Public advisory services shall notify all parties whose
44、service laterals will be out of commission and advise againstwater usage until the main line is back in service.6.4 Installation Methods:6.4.1 Perforation of Resin-Impregnated TubePrior topulling the resin-impregnated fabric tube in place, the outerimpermeable plastic coating may optionally be perfo
45、rated.When the resin-impregnated fabric tube is perforated, thisshould allow resin to be forced through the perforations and outagainst the existing conduit by the force of the hydrostatic heador air pressure against the inner wall of the calibration hose.The perforation should be done after fabric
46、tube impregnationwith a perforating roller device at the point of manufacture orat the jobsite. Perforations should be made on both sides of thelay-flat fabric tube covering the full circumference with aspacing no less than 1.5 in. (38.1 mm) apart. Perforating slitsshould be a minimum of 0.25 in. (6
47、.4 mm) long.6.4.2 Pulling Resin-Impregnated Tube into PositionThewet-out fabric tube should be pulled into place using a powerwinch. The saturated fabric tube should be pulled through anexisting manhole or other approved access to fully extend tothe next designated manhole or termination point. Care
48、 shouldbe exercised not to damage the tube as a result of frictionduring pull-in, especially where curvilinear alignments, multi-linear alignments, multiple offsets, protruding services, andother friction-producing host pipe conditions are present. Oncethe fabric tube is in place, it should be attac
49、hed to a verticalstandpipe so that the calibration hose can invert into the centerof the resin-impregnated fabric tube. The vertical standpipeshould be of sufficient height of water head to hold the fabrictube tight to the existing pipe wall, producing dimples at sideconnections. A device such as a dynamometer or load cellshould be provided on the winch or cable to monitor the pullingforce. Measure the overall elongation of the fabric tube afterpull-in completion. The acceptable longitudinal elongationshall not be more than 5 % of the overall length measured
