ASTM_C_443M_-_11.pdf

Designation:C443M11Standard Specification forJoints for Concrete Pipe and Manholes,Using RubberGaskets(Metric)1This standard is issued under the fixed designation C443M;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 Department of Defense.1.Scope1.1 This specification covers flexible watertight joints forconcrete pipe and precast manhole sections,using rubbergaskets for sealing the joints,where infiltration or exfiltration isa factor in the design.The specification covers the design ofjoints and the requirements for rubber gaskets to be usedtherewith,for pipe conforming in all other respects to Speci-fication C14M,Specification C76M,or Specification C507Mand precast manhole section conforming in all other respects toSpecification C478M,provided that if there is conflict inpermissible variations in dimensions,the requirements of thisspecification for joints shall govern.1.2 This specification is the metric counterpart of Specifi-cation C443.NOTE1This specification covers the design and performance of therubber gasket joint only.Joints covered by this specification are normallyadequate for hydrostatic pressures up to 90 kPa(9 m)without leakage,when tested per Section 9.Infiltration or exfiltration quantities for aninstalled pipeline are dependent upon many factors other than the joints,and allowable quantities must be covered by other specifications andsuitable testing of the installed pipeline and system.2.Referenced Documents2.1 ASTM Standards:2C14M Specification for Nonreinforced Concrete Sewer,Storm Drain,and Culvert Pipe(Metric)C76M Specification for Reinforced Concrete Culvert,StormDrain,and Sewer Pipe(Metric)C478M Specification for Precast Reinforced Concrete Man-hole Sections(Metric)C507M Specification for Reinforced Concrete EllipticalCulvert,Storm Drain,and Sewer Pipe(Metric)C822 Terminology Relating to Concrete Pipe and RelatedProductsC1619 Specification for Elastomeric Seals for Joining Con-crete Structures3.Terminology3.1 Definitions:For definitions of terms relating to concretepipe,see Terminology C822.4.Basis of Acceptance4.1 The acceptability of the pipe joints and gaskets shall bedetermined by the results of the physical tests prescribed in thisspecification,if and when required,and by inspection todetermine whether the pipe joints and gaskets conform to thisspecification as to design and freedom from defects.5.Materials and Manufacture for Gaskets5.1 All rubber gaskets shall comply with SpecificationC1619 in terms of materials and manufacture.The gasketsshall be extruded or molded to the specified size within atolerance of 66%on any dimension,measured at any crosssection.6.Physical Requirements for Gaskets6.1 Standard Gasket Requirements All rubber gasketsshall meet the dimensions,tolerances,and physical require-ments of Specification C1619,Class C.6.2 Oil Resistant Gasket RequirementsAll rubber gasketsshall meet the dimensions,tolerances,and physical require-ments of Specification C1619,Class D.7.Design of Joints7.1 The manufacturer shall furnish the owner with thedetailed design of the joint or joints including design anddurometer hardness of the rubber gasket proposed to befurnished under this specification.7.1.1 The joint design shall consist of a bell or groove onone end of a unit of pipe,and a spigot or tongue on the adjacentend of the joining pipe.7.1.2 All surfaces of the joint upon or against which thegasket is capable of bearing shall be smooth,free of spalls,1This specification is under the jurisdiction of ASTM Committee C13 onConcrete Pipe and is the direct responsibility of Subcommittee C13.08 on Joints forPrecast Concrete Structures.Current edition approved Sept.1,2011.Published September 2011.Originallyapproved in 1980.Last previous edition approved in 2010 as C433M 10.DOI:10.1520/C0443M-11.2For 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 cracks or fractures,and imperfections that would adverselyaffect the performance of the joint.7.1.3 The joints of the pipe shall be of such design that theywill withstand the forces caused by the compression of thegasket when joined,without cracking or fracturing when testedin accordance with Section 9.7.1.4 The angle of taper on the conic surfaces of the insideof the bell or groove and the outer surface of the spigot ortongue where the gasket seats shall be not more than 3.5measured from the pipe axis,except that tapers up to 5 are notprohibited if prove