ASTM_C_923_-_08_2013e1.pdf

Designation:C92308(Reapproved 2013)1Standard Specification forResilient Connectors Between Reinforced Concrete ManholeStructures,Pipes,and Laterals1This standard is issued under the fixed designation C923;the number immediately following 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.This standard has been approved for use by agencies of the U.S.Department of Defense.1NOTEEditorially corrected 5.3 in January 2016.1.Scope1.1 This specification covers the minimum performance andmaterial requirements for resilient connectors used for connec-tions between reinforced concrete manholes conforming toSpecification C478 and pipes,between wastewater structuresand pipes,and between precast reinforced concrete pipe andlaterals.1.1.1 These connectors are designed to minimize leakagebetween the pipe and manhole,and between the pipe andlateral.1.2 Acomplete metric companion to Specification C923 hasbeen developedC923M;therefore,no metric equivalents arepresented in this specification.NOTE1This specification covers the design,material,and perfor-mance of the resilient connection only.Connections covered by thisspecification are adequate for hydrostatic pressures up to 13 psi(30 ft)without leakage when tested in accordance with Section 7.Infiltration orexfiltration quantities for an installed system are dependent upon manyfactors other than the connections between manhole structures and pipe,and allowable quantities must be covered by other specifications andsuitable testing of the installed pipeline and system.1.3 The following precautionary caveat pertains only to thetest methods portion,Section 7,of this specification:Thisstandard does not purport to address all of the safety concerns,if any,associated with its use.It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.For a specific precaution statement,see7.2.5.2.Referenced Documents2.1 ASTM Standards:2A493 Specification for Stainless Steel Wire and Wire Rodsfor Cold Heading and Cold ForgingA666 Specification for Annealed or Cold-Worked AusteniticStainless Steel Sheet,Strip,Plate,and Flat BarC478 Specification for Circular Precast Reinforced ConcreteManhole SectionsC822 Terminology Relating to Concrete Pipe and RelatedProductsC913 Specification for Precast Concrete Water and Waste-water StructuresD395 Test Methods for Rubber PropertyCompression SetD412 Test Methods for Vulcanized Rubber and Thermoplas-tic ElastomersTensionD471 Test Method for Rubber PropertyEffect of LiquidsD543 Practices for Evaluating the Resistance of Plastics toChemical ReagentsD573 Test Method for RubberDeterioration in an AirOvenD624 Test Method for Tear Strength of Conventional Vul-canized Rubber and Thermoplastic ElastomersD883 Terminology Relating to PlasticsD1149 Test Methods for Rubber DeteriorationCracking inan Ozone Controlled EnvironmentD1566 Terminology Relating to RubberD2137 Test Methods for Rubber PropertyBrittleness Pointof Flexible Polymers and Coated FabricsD2240 Test Method for Rubber PropertyDurometer Hard-nessNOTE2For more information about wastewater structures,see Speci-fication C913.1This specification is under the jurisdiction of ASTM Committee C13 onConcrete Pipe and is the direct responsibility of Subcommittee C13.06 on Manholesand Specials.Current edition approved July 1,2013.Published July 2013.Originally approvedin 1979.Last previous edition approved in 2008 as C923 08.DOI:10.1520/C0923-08R13E01.2For 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 Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.Terminology3.1 Definitions:3.1.1 Terms relating to plastics and rubber shall be asdefined in Terminologies D883 and D1566,respectively.3.1.2 Terms relating to precast concrete pipe,manholes,andrelated products shall be as defined in Terminology C822 andas modified in 3.1.3 3.1.6.3.1.3 connectorthe entire assembly including resilientseals and metallic or nonmetallic mechanical devices,if any,used therein.3.1.4 lateralthe small diameter pipe connected to themain line pipe.3.1.5 pipethe inlet or outlet pipe connected to the man-hole.3.1.6 pipe stuba short section of pipe,installed in thestructure as an inlet or outlet pipe,for future connection.4.Materials and Manufacture4.1 All materials shall conform to the following require-ments:4.1.1 Resilient materials for connectors and filler rings shallbe manufactured from natural or synthetic rubber and shallconform to the requirements prescribed in Table 1.If a spliceis