1、Designation: C 444M 03 (Reapproved 2009)Standard Specification forPerforated Concrete Pipe (Metric)1This standard is issued under the fixed designation C 444M; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revisi
2、on. 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 perforated concrete pi
3、pe in-tended to be used for underdrainage.1.2 This specification is the SI companion to SpecificationC 444.1.3 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 establish appro-priate safety a
4、nd health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C 822 Terminology Relating to Concrete Pipe and RelatedProducts3. Terminology3.1 DefinitionsFor definitions of terms relating to con-crete pipe, see Terminology C 82
5、2.4. Classification4.1 Pipe manufactured to this specification shall be of twoclasses, Type 1 and Type 2, describing two arrangements ofperforations for pipe manufactured to the standard specifica-tions for plain or reinforced concrete pipe, and their classifi-cations.4.1.1 Type 1 perforated pipe sh
6、all 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 that perforated pipe shall be specified byreference to this specification and the specification for the typeand class of pipe des
7、ired.NOTE 1Example: “Perforated concrete pipe shall conform to therequirements of Specification C 444M Type 2, and all applicable require-ments of Specification C 14M, Class 2.”5. Basis of Acceptance5.1 The acceptability of the pipe shall be determined by theresults of all applicable tests (Note 2)
8、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.NOTE 2It is intended that all tests will be applicable except thosehaving to do with permeability and the hydrostatic test.1This spec
9、ification 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 June 1, 2009. Published July 2009. Originally approvedin 1980. Last previous edition a
10、pproved in 2003 as C 444M 03.2For 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.TABLE 1 Number of Rows of Perfor
11、ations RequiredInternal DesignatedDiameter,mmRows of Perforations100 4150 4200 4250 6300 6350 6375 6400 6450 8500 8525 8600 8675 and larger space rows approximately 150 mmTABLE 2 Requirements for Length and Spacing of SlotsInternal DesignatedDiameter,mmSlot Length,mmSlot Spacing,Amm100 25 75150 38 7
12、5200 50 100250 50 100300 75 150350 75 150375 75 150400 75 150450 75 150500 75 150525 75 150600 75 150675 and larger 100 150ASee 6.2 for exceptions for plain-end pipe.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.6. Perforations6.1
13、Type 1Perforations shall be circular, not more than 8mm or less than 5 mm in diameter, and arranged in rowsparallel to the axis of the pipe. Perforations shall be 75 mmcenter-to-center, along rows. The spigot or tongue end shall notbe perforated for a length equal to the depth of the socket, ordepth
14、 of the groove plus 19 mm and perforations shall continueat uniform spacing along the length of the barrel. The numberof rows shall be as shown in Table 1. The rows shall be spacedover not more than 165 of circumference. Rows shall besymmetrically arranged with respect to the intended top orbottom o
15、f the pipe.6.2 Type 2Slots shall be circumferential in direction, notmore than 5 mm or less than 3 mm in width, and of the 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. Sl
16、ots shall be spaced asshown in Table 2, except as modified herein for plain-end pipe.The distance from the spigot end, or from the shoulder of thetongue end, to the first pair of slots shall be not more than 25mm greater than the specified slot spacing, nor less than 25 mmless than the specified slo
17、t spacing. Slots shall continue atuniform spacing along the length of the barrel.6.2.1 Slots in plain-end pipe shall be spaced as shown inTable 2 except that smaller spacing shall be used wherenecessary to provide not less than three equally spaced slots ineach row. Slots shall be centered with resp
18、ect to the ends of thepipe and there shall be not more than the specified slot spacingfrom the pipe end to the first pair of slots, or less than one halfof the slot spacing employed.6.3 The manufacturer shall submit to the owner for ap-proval, prior to manufacture, sizes and arrangements of perfo-ra
19、tions other than specified herein.7. Joints7.1 The joints shall be of such design and the ends of theconcrete pipe sections so formed that the pipe can be laidtogether to make a continuous line of pipe compatible with thepermissible variations given in Section 8.8. Permissible Variation in Dimension
20、s8.1 The permissible variation in circular perforation size orslot width shall be as specified in Section 6. Slot lengthtolerance is + 6 mm or 3 mm. Variation in row spacing, or inthe spacing of holes or slots in any row, shall be 613 mmexcept as required to provide specified cover for reinforcingst
21、eel.9. Repairs9.1 Pipe repaired because of imperfections in manufactureor damage during handling will be acceptable, if in the opinionof the owner, the repairs are sound and properly finished andcured and the repaired pipe conforms to the requirements ofthis specification.10. Marking of Rejected Spe
22、cimens10.1 All rejected pipe shall be marked clearly by the ownerand shall be replaced by the manufacturer with pipe that willmeet the requirement of this specification, without additionalcost to the owner.11. Inspection11.1 The quality of all materials and the finished pipe shallbe subject to inspe
23、ction and approval by the owner. Suchinspection shall be performed at the point of manufacture ordelivery. The method of marking as to acceptance or rejectionof the pipe shall be agreed upon, prior to inspection, betweenthe owner and manufacturer. Rejected pipe shall be replaced bythe manufacturer w
24、ith pipe that meets the requirements of thisspecification.12. Rejection12.1 Pipe shall be subject to rejection due to any of theapplicable causes for rejection listed for the type and class ofpipe specified, or any of the following:12.1.1 Variations in dimensions exceeding those specified inSections
25、 6 and 8,or12.1.2 Spalls more than 19 mm in diameter or 5 mm indepth caused by making perforations or slots.13. Keywords13.1 concrete pipe; perforated; subsurface drainage;underdrainageASTM International takes no position respecting the validity of any patent rights asserted in connection with any i
26、tem mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical co
27、mmittee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a
28、 meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Dri
29、ve, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).C 444M 03 (2009)2
