ASTM F2561-06
(Practice)Standard Practice for Rehabilitation of a Sewer Service Lateral and Its Connection to the Main Using a One Piece Main and Lateral Cured-in-Place Liner
Standard Practice for Rehabilitation of a Sewer Service Lateral and Its Connection to the Main Using a One Piece Main and Lateral Cured-in-Place Liner
SIGNIFICANCE AND USE
This practice is for use by designers and specifiers, regulatory agencies, owners, and inspection organizations who are involved in the rehabilitation of sewer service laterals and its connection to the main through the use of a resin-impregnated tube installed within an existing sewer lateral. As for any practice, modifications may be required for specific job conditions.
SCOPE
1.1 This practice covers requirements and test methods for the reconstruction of a sewer service lateral pipe having an inner diameter of 3 to 12 in. and its connection to the main pipe having an inner diameter of 6 to 24 in. without excavation. The lateral pipe is accessed remotely from the main pipe and from a lateral cleanout. This will be accomplished by the installation of a resin impregnated one-piece main and lateral cured in-place lining (MLCIPL) by means of air or water inflation and inversion. The MLCIPL is pressed against the host pipe by pressurizing a bladder and is held in place until the thermoset resins have cured. When cured, the MLCIPL shall be a continuous, one piece, tight fitting, corrosion resistant lining extending over a predetermined length of the lateral pipe and the adjacent section of the main pipe providing a verifiable non-leaking structural connection and seal.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided for information only.
1.3 There is no similar or equivalent ISO Standard.
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. Particular attention is drawn to those safety regulations and requirements involving entering into and working in confined spaces.
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Standards Content (Sample)
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An American National Standard
Designation:F2561–06
Standard Practice for
Rehabilitation of a Sewer Service Lateral and Its Connection
to the Main Using a One Piece Main and Lateral Cured-in-
,
1 2
Place Liner
This standard is issued under the fixed designation F2561; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
1.1 This practice covers requirements and test methods for 2.1 ASTM Standards:
the reconstruction of a sewer service lateral pipe having an D618 Practice for Conditioning Plastics for Testing
innerdiameterof3to12in.anditsconnectiontothemainpipe D790 Test Methods for Flexural Properties of Unreinforced
havinganinnerdiameterof6to24in.withoutexcavation.The andReinforcedPlasticsandElectricalInsulatingMaterials
lateral pipe is accessed remotely from the main pipe and from D1600 Terminology for Abbreviated Terms Relating to
alateralcleanout.Thiswillbeaccomplishedbytheinstallation Plastics
of a resin impregnated one-piece main and lateral cured D3681 Test Method for Chemical Resistance of “Fiber-
in-place lining (MLCIPL) by means of air or water inflation glass” (Glass−Fiber−Reinforced Thermosetting-Resin)
andinversion.TheMLCIPLispressedagainstthehostpipeby Pipe in a Deflected Condition
pressurizing a bladder and is held in place until the thermoset D5813 Specification for Cured-In-Place Thermosetting
resins have cured. When cured, the MLCIPL shall be a Resin Sewer Piping Systems
continuous, one piece, tight fitting, corrosion resistant lining F412 Terminology Relating to Plastic Piping Systems
extending over a predetermined length of the lateral pipe and F1216 Practice for Rehabilitation of Existing Pipelines and
the adjacent section of the main pipe providing a verifiable Conduits by the Inversion and Curing of a Resin-
non-leaking structural connection and seal. Impregnated Tube
1.2 Thevaluesstatedininch-poundunitsaretoberegarded 2.2 NASSCO Guidelines:
as the standard. The values given in parentheses are provided Recommended Specifications for Sewer Collection System
for information only. Rehabilitation
1.3 There is no similar or equivalent ISO Standard.
3. Terminology
1.4 This standard does not purport to address all of the
3.1 Definitions—Unless otherwise indicated, definitions are
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- inaccordancewithTerminologyF412,andabbreviationsarein
accordance with Terminology D1600.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. Particular attention 3.2 Definitions of Terms Specific to This Standard:
3.2.1 access point—an existing manhole at either the up-
is drawn to those safety regulations and requirements involving
entering into and working in confined spaces. stream or downstream end of a sewer main or a cleanout
located on the lateral pipe.
3.2.2 bladder—a transparent flexible plastic hose that when
This practice is under the jurisdiction of ASTM Committee F17 on Plastic
pressurized, causes the main sheet to be pressed against the
Piping Systems and is the direct responsibility of Subcommittee F17.67 on
Trenchless Plastic Pipeline Technology.
main pipe walls and the lateral tube to invert up into the sewer
Current edition approved June 1, 2006. Published June 2006. DOI: 10.1520/
service lateral. The bladder joined with the textile lining
F2561-06.
2 creates a liner/bladder assembly.
Therehabilitationofasewerservicelateralanditsconnectiontothemainusing
a one-piece main and lateral cured-in-place liner is covered by patents (LMK
Enterprises, Inc. 1779 Chessie Lane, Ottawa, IL 61350). Interested parties are
invited to submit information regarding the identification of acceptable alternatives For referenced ASTM standards, visit the ASTM website, www.astm.org, or
tothispatenteditemtotheCommitteeonStandards,ASTMHeadquarters,100Barr contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Harbor Drive, West Conshohocken, PA 19428-2959. Your comments will receive Standards volume information, refer to the standard’s Document Summary page on
carefulconsiderationatameetingoftheresponsibletechnicalcommitteewhichmay the ASTM website.
attend. NASSCO, 1314 Bedford Ave., Suite 201 Baltimore, MD 21208
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F2561–06
3.2.3 inversion—the process of turning a resin-impregnated lateral pipe services. The main sheet and tube shall be
tube inside out by the use of air or water pressure. surrounded by a second impermeable, flexible translucent
3.2.4 launcher—combination of a rigid elongated tube and membrane (translucent bladder) that will contain the resin and
lay-flat hose apparatus where the main bladder is attached and facilitate vacuum impregnation and monitoring of the resin
the main sheet is wrapped around the exterior of the rigid saturation during the resin impregnation (wet-out) procedure.
portion.Thelateralbladderandlaterallinerisdrawninsidethe 5.1.3 The main sheet and lateral tube shall be a one-piece
hose. The launcher is positioned within the main pipe; air assembly formed as a TEE or WYE shaped fitting. No
pressure is introduced into the hose causing inflation of the intermediate or encapsulated elastomeric layers shall be in the
main bladder/ sheet and inversion of the lateral bladder tube. textile that may cause delamination in the cured in place pipe.
3.2.5 lift—a portion of the MLCIPL that has cured in a The main sheet will be flat with one end overlapping the
position such that it has pulled away from the existing pipe second end and sized accordingly to create a circular lining
wall. equal to the inner diameter of the main pipe. The lateral tube
3.2.6 main and lateral cured in place lining (MLCIPL)—a will be continuous in length and the wall thickness shall be
textile including plastic coating impregnated by a thermoset- uniform. The lateral tube will be capable of conforming to
ting resin. This pipe is formed within a portion of the existing offset joints, bells, and disfigured pipe sections.
main pipe and the lateral pipe. Therefore, it takes the shape of 5.2 Resin:
an existing TEE or WYE fitting and fits tightly to the existing 5.2.1 The resin/liner system shall conform to Test Method
pipes. D3681, 10000-h test.
3.2.7 resin—polyester, vinyl ester, epoxy or silicate resin 5.2.2 Theresinshallbeacorrosionresistantpolyester,vinyl
systems being ambient, steam, or hot water cured. ester, epoxy or silicate resin and catalyst system that when
3.2.8 resin slug—excess resin at the upper most end of a properly cured within the composite pipe assembly, meets the
lateral lining. requirementsofPracticeF1216,thephysicalpropertiesherein,
3.2.9 sewer service lateral—apipeservicingabuildingora andthose,whicharetobeutilizedinthedesignoftheMLCIPL
side service. for this project.
3.2.10 sheet—a flat textile sheet that is formed into a 16 5.2.3 TheresinshallproduceaMLCIPL,whichwillcomply
inches long tube within the main pipe. The sheet is connected with the structural and chemical resistance requirements of
to the lateral tube forming a one-piece TEE or WYE shaped Practice F1216.
fitting.
6. Design Considerations
3.2.11 transition—the change in pipe diameter commonly
6.1 The MLCIPL shall be designed in accordance with
found in lateral pipes.
PracticeF1216,AppendixX1inrespecttothelateralandmain
4. Significance and Use
line tubes. If the mainline pipe has been renewed with a
4.1 This practice is for use by designers and specifiers, structural lining from manhole to manhole, then the mainline
regulatory agencies, owners, and inspection organizations who portion of the MLCIPL is designed only for hydrostatic
are involved in the rehabilitation of sewer service laterals and buckling.
its connection to the main through the use of a resin- 6.1.1 The design for the main and lateral tube shall assume
impregnated tube installed within an existing sewer lateral.As no bonding to the original pipe.
foranypractice,modificationsmayberequiredforspecificjob
7. Installation Recommendations
conditions.
7.1 Access Safety—Prior to entering access areas such as
5. Materials
manholes or an excavation pit, performing inspection or
5.1 Tube and Sheet: cleaning operations, an evaluation of the atmosphere to deter-
5.1.1 The main sheet and tube shall consist of one or more mine the presence of toxic or flammable vapors or lack of
layers of absorbent textile i.e. needle punched felt or circular oxygen shall be undertaken in accordance with local, state, or
knit that meet the requirements of Practice F1216 and Speci- federal safety regulations.
ficationD5813,Sections6and8.Themainsheetandtubeshall 7.1.1 Cleaning and Pre-Inspection and Post Inspection,as
be constructed to withstand installation pressures, have suffi- per NASSCO (NationalAssociation of Sewer Service Compa-
cient strength to bridge missing pipe segments, and flexibility nies) Guidelines.
to fit irregular pipe sections. The volume of resin used should 7.1.2 Accessing the Lateral—A clean-out must be located
be sufficient to fill all voids in the tube material at nominal outside of the building and upstream at the upper end of the
thickness and diameter. The wet-out main sheet and tube shall finishedlaterallining.Inordertoaccessboththeupstreamand
have a uniform thickness and excess resin distribution that downstream sides of the lateral pipe, it is recommended that
when compressed at installation pressures will meet or exceed thecleanout
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