1、Designation:C44417Standard Specification forPerforated Concrete Pipe1This standard is issued under the fixed designation C444;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
2、 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.1.Scope1.1 This specification covers perforated concrete pipe in-tended to be used for underdrai
3、nage.1.2 This specification is the inch-pound companion toSpecification C444M;therefore,no SI equivalents are pre-sented in the specification.1.3 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
4、 establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDev
5、elopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2C822 Terminology Relating to Concrete Pipe and RelatedProducts3.Terminology3.1 DefinitionsFor definitions of terms
6、 relating to concretepipe,see Terminology C822.4.Classification4.1 Pipe manufactured according to this specification shallbe of two classes known as Type 1 and Type 2,which covertwo arrangements of perforations to be used with pipe manu-factured according to any of the standard specifications forpla
7、in or reinforced concrete pipe,and any of the classificationswithin those standard specifications.4.1.1 Type 1 perforated pipe shall have circular perforationsconforming to 6.1 and Table 1.4.1.2 Type 2 perforated pipe shall have slotted perforationsconforming to 6.2 and Table 2.4.1.3 It is intended
8、that perforated pipe shall be specified byreference to this specification and the specification for the typeand class of pipe desired.NOTE1Example“Perforated concrete pipe shall conform to therequirements of Specification C444 Type 2,and all applicable require-ments of Specification C14,Class 2.”5.B
9、asis of Acceptance5.1 The acceptability of the pipe shall be determined by theresults of all applicable tests(Note 2)prescribed for the typeand class of pipe specified,and by inspection to determinewhether the pipe conforms to this specification as to design andfreedom from defects.NOTE2It is intend
10、ed that all tests will be applicable except thosehaving to do with permeability and the hydrostatic test.6.Perforations6.1 Type 1Perforations shall be circular,not more than516in.or less than316in.in diameter,and arranged in rows parallelto the axis of the pipe.Perforations shall be 3 in.center-to-c
11、enter,along rows,with no less than12in.of cover over anyreinforcing steel.The spigot or tongue end shall not beperforated for a length equal to the depth of the socket,or depthof the groove plus34in.and perforations shall continue atuniform spacing along the entire length of the barrel.The totalnumb
12、er of rows shall be as shown in Table 1.The rows shallbe spaced over not more than 165 of circumference.Rowsshall be symmetrically arranged with respect to the intendedtop or bottom of the pipe.6.2 Type 2Slots shall be circumferential in direction,notmore than316in.or less than18in.in width,and of t
13、he lengthsshown in Table 2.There shall be two rows of slots,spaced 165apart,and centered,in the case of elliptically reinforced pipe,about the minor axis of the reinforcing.Slots shall be spaced asshown in Table 2,except as modified herein for plain-end pipewith no less than12in.cover over any reinf
14、orcing steel.The1This specification is under the jurisdiction of ASTM Committee C13 onConcrete Pipe and is the direct responsibility of Subcommittee C13.01 onNon-Reinforced Concrete Sewer,Drain and Irrigation Pipe.Current edition approved April 1,2017.Published May 2017.Originallyapproved in 1959.La
15、st previous edition approved in 2009 as C444 03(2009).DOI:10.1520/C0444-17.2For 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
16、 website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 distance from the spigot end,or from the shoulder of thetongue end,
