1、Designation:F271809(Reapproved 2015)Standard Specification forPolyethylene(PE)and Cement Materials for anEncapsulated Cement Mortar Formed in Place Liner System(FIPLS)for the Rehabilitation of Water Pipelines1This standard is issued under the fixed designation F2718;the number immediately following
2、the 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.Scope1.1 This specification covers req
3、uirements and test methodsfor materials for a semi-structural polyethylene(PE)encapsu-lated cement mortar formed-in-place liner system(FIPLS)intended for the rehabilitation of water pipelines of nominalsize 4 in.to 12 in.This renewal process involves installing acollapsed PE liner,folded at the time
4、 of insertion,into anexisting pipeline,expanding the PE liner,and then pumpingcement mortar into the annulus between the liner and the main.1.2 The liner and cement mortar are progressively roundedby means of an air pressure propelled pig and expanded againstthe interior surface of the original host
5、 pipe.After rounding,theline is maintained under pressure until the cement mortar curesand the liner is completely self supporting.1.3 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 inf
6、ormation onlyand are not considered standard.1.4 This standard does not purport to address all of thesafety 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 regulator
7、y limitations prior to use.1.5 There is no similar or equivalent ISO standard.2.Referenced Documents2.1 ASTM Standards:2C109/C109M Test Method for Compressive Strength ofHydraulic Cement Mortars(Using 2-in.or 50-mm CubeSpecimens)D638 Test Method for Tensile Properties of PlasticsD790 Test Methods fo
8、r Flexural Properties of Unreinforcedand Reinforced Plastics and Electrical Insulating Materi-alsD1505 Test Method for Density of Plastics by the Density-Gradient TechniqueD1525 Test Method for Vicat Softening Temperature ofPlasticsD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD1693 Te
9、st Method for Environmental Stress-Cracking ofEthylene PlasticsF412 Terminology Relating to Plastic Piping Systems2.2 NSF/ANSI:3NSF/ANSI 14 for Plastic Piping Components and relatedMaterialsNSF/ANSI 61 for Drinking Water Systems Components Health Effects2.3 American Water Works Association Standards
10、4Manual M28 Rehabilitation of Water Mains3.Terminology3.1 Unless otherwise indicated,definitions are in accor-dance with Terminology F412,and abbreviations are in accor-dance with Terminology D1600.The abbreviation of polyeth-ylene is PE.3.2 Definitions of Terms Specific to This Standard:3.2.1 cemen
11、t mortar,na specially formulated cementbased grout.1This specification is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.67 onTrenchless Plastic Pipeline Technology.Current edition approved March 1,2015.Published April 2015.
12、Originallyapproved in 2009.Last previous edition approved in 2009 as F271809.DOI:10.1520/F2718-09R15.2For referenced ASTM 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 Docume
13、nt Summary page onthe ASTM website.3Available from NSF International,P.O.Box 130140,789 N.Dixboro Rd.,AnnArbor,MI 48105,http:/www.nsf.org.4Available from American Water Works Association(AWWA),6666 W.QuincyAve.,Denver,CO 80235,http:/www.awwa.org.Copyright ASTM International,100 Barr Harbor Drive,PO
14、Box C700,West Conshohocken,PA 19428-2959.United States1 3.2.2 formed-in-place-liner system(FIPLS),nafter inser-tion of the liner and cement mortar,sequential insertion andreforming of the liner and cement mortar in the host pipe,acomposite system of cement mortar PE liner is formed.SeeFig.1 and Fig.
15、2.3.2.3 liner,na PE sheet with integral anchors or hooksextruded in a flat shape then formed with overlapping edgesand welded into a cylindrical shape,which is then collapsed,folded into a C configuration,thereby reducing its area andthen pulled into the host pipe.3.3 semi-structural,adjliner system
16、s designed to bridgeholes and gaps and seal leaking joints in the host pipe andhaving sufficient inherent stiffness to be self supporting withoutdependence on adhesion to the pipe wall.3.3.1 DiscussionAppendix A of AWWA Manual M28“Structural Lining Design Issues,”contains a more detaileddiscussion of structural classification of lining techniques.Thefollowing is taken from Manual M28:“Class II and Class IIILinings are both interactive and semi-structural systems.Sincethe stiffness of such a lini
