ASTM C1103-2014 Standard Practice for Joint Acceptance Testing of Installed Precast Concrete Pipe Sewer Lines《已安装的预制混凝土污水管线接头验收试验的标准实践规程》.pdf

1、Designation: C1103 14Standard Practice forJoint Acceptance Testing of Installed Precast Concrete PipeSewer Lines1This standard is issued under the fixed designation C1103; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of

2、 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 practice covers procedures for testing the joints ofinstalled precast concrete pipe sewer lines, when using eith

3、erair or water under low pressure to demonstrate the integrity ofthe joint and the construction procedures. This practice is usedfor testing 27-in. and larger diameter precast concrete sewerlines utilizing rubber gasket sealed joints.NOTE 1The user of this practice is advised that methods describedh

4、erein may also be used as a preliminary test to enable the manufactureror installer to demonstrate the condition of sewer pipe prior to delivery.1.2 This practice is the inch-pound companion to PracticeC1103M; therefore, no SI equivalents are presented in thepractice.NOTE 2The owner shall specify th

5、e following: who will conduct,observe, and furnish labor, material, and measuring devices and pay forthe tests; who is responsible for determining local ground conditions; andwhether an air or water test is to be used.NOTE 3The user of this practice is advised that test criteria presentedin this pra

6、ctice are similar to those in general use. Pipe shall be acceptedby infiltration or exfiltration testing utilizing Practice C969.NOTE 4Test times tabulated and the rate of air loss in this practice arebased on successful testing of installed pipelines. However, since air andwater have different phys

7、ical properties, retests of some pipelines notmeeting field air tests have been successful when tested with water.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 s

8、afety and health practices and determine the applica-bility of regulatory limitations prior to use. Specific precau-tions are given in Section 6.2. Referenced Documents2.1 ASTM Standards:2C822 Terminology Relating to Concrete Pipe and RelatedProductsC969 Practice for Infiltration and Exfiltration Ac

9、ceptanceTesting of Installed Precast Concrete Pipe Sewer Lines3. Terminology3.1 DefinitionsFor definitions of terms relating to concretepipe, see Terminology C822.4. Summary of Practice4.1 The joint in the sewer line to be tested is covered on theinside of the pipe by a ring with two end element sea

10、ling tubes.Air or water, at low pressure, is introduced through a connec-tion on the ring into the annular space between the ring andjoint. The amount of air, or water, loss is used to determine theacceptability of the installed sewer line.5. Significance and Use5.1 This is not a routine test. The v

11、alues recorded areapplicable only to the sewer being tested and at the time oftesting.6. Safety Precautions6.1 The use of compressed air is dangerous if a sewer line isnot prepared properly and proper procedures are not followed.6.2 It is imperative that all pressures be relieved completelybefore th

12、e test apparatus is loosened for removal.6.3 Pressurizing lines for the two end element sealing tubesshall be separate from the lines for pressurizing the voidvolume created by the joint test apparatus. The pressuresrequired to seal the end element tubes shall be as specified bythe apparatus manufac

13、turer, and are greater than the pressurerequired to test the joint. The line for pressurizing the voidvolume shall include a 6-psi pressure relief device to reducehazards and avoid overpressurization.7. Preparation of the Sewer Joint7.1 Check the size of access openings to ensure that the testappara

14、tus will fit in the sewer line.7.2 Clean the joint and interior joint surfaces to eliminatedebris prior to wetting and testing.NOTE 5The user of this practice is advised that a wetted interiorsurface is desirable and will produce more consistent results. Air may passthrough the walls of dry pipe. Th

15、is can be overcome by wetting the pipe.1This practice is under the jurisdiction of ASTM Committee C13 on ConcretePipe and is the direct responsibility of Subcommittee C13.09 on Methods of Test.Current edition approved Nov. 15, 2014. Published November 2014. Originallyapproved in 1989. Last previous

16、edition approved in 2009 as C1103 03(2009).DOI: 10.1520/C1103-14.2For 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 webs

17、ite.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States17.3 Review safety precautions in Section 6.8. Procedures8.1 The following procedures apply to testing with either airor water.8.1.1 Determine groundwater conditions surrounding these

18、wer line to be tested, and select the type of test to beconducted.8.1.2 If the groundwater pressure is equal to or greater thanthe test pressure, and the sewer line or joint is not leaking, thesewer line or joint is acceptable in accordance with PracticeC969 and no additional testing is required. If

19、 one or more jointsare leaking, but the total amount of leakage in the sewer linebeing tested is equal to, or less than, the allowable leakage rateestablished in accordance with Practice C969, the line isacceptable and no additional testing is required providedvisible leaks are repaired. Moisture or

20、 beads of water appearingon the surface of the joint will not be considered as visibleleakage.8.1.3 Review proper operation, safety, and maintenanceprocedures as provided by the manufacturer of the joint testapparatus.8.1.4 Move the joint test apparatus into the sewer line to thejoint to be tested a

21、nd position it over the joint. Make sure theend element sealing tubes straddle both sides of the joint andthe hoses are attached. For the water test, the bleed-off petcockmust be located at top dead center.8.1.5 Inflate end element sealing tubes with air in accor-dance with equipment and manufacture

22、rs instructions.NOTE 6The user of this practice is advised that all test pressures aremeasured as gauge pressure, which is defined as any pressure greater thanatmospheric pressure. Since water produces a pressure of 0.43 psi forevery foot of depth, test pressures must be increased to offset the dept

23、h ofgroundwater over the sewer line. If the groundwater level is 2 ft or moreabove the top of the pipe at the upstream end or if the pressure requiredfor the test is greater than 6-psi gauge, the joint test method shall not beused and the infiltration test may be used (see Practice C969).NOTE 7An ai

24、r or water reservoir shall be included in the joint testsystem. By maintaining a constant supply of air or water in a reservoir,continuous pumping of air or water is not required, and any variances intest equipment and joint space will be negated. The reservoir shall have aminimum volume of 2.5 ft3.

25、8.2 Joint Air Test:8.2.1 Review procedures in 8.1.8.2.2 Pressurize the void volume with air to 3.5 psi greaterthan the pressure exerted by groundwater above the pipe.Allow the air pressure and temperature to stabilize beforeshutting off the air supply, and start of test timing.8.2.3 If pressure hold

26、s, or drops less than 1 psi in 5 s, thejoint is acceptable. Practically, the test is a go/no go test.8.2.4 If the joint being tested fails, it shall be retested, orrepaired if necessary, and retested, in accordance with thispractice.8.2.5 After the joint test is completed, exhaust void volume,then e

27、xhaust end element tubes prior to removal of apparatus.8.2.6 Use or failure of the joint air test shall not precludeacceptance by appropriate water infiltration and exfiltrationtesting (see Practice C969), or other means.8.3 Joint Water Test:8.3.1 Review procedures in 8.1.8.3.2 Introduce water into

28、void volume until water flowsevenly from open petcock. Close the petcock and pressurizewith water to 3.5 psi above the pressure exerted by groundwa-ter above the pipe. Shut off the water supply.8.3.3 If the pressure holds, or drops less than 1 psi in 5 s, thejoint is acceptable. Practically, the tes

29、t is a go/no go test.8.3.4 If the joint being tested fails, it shall be retested, orrepaired if necessary, and retested, in accordance with thispractice.8.3.5 After the joint test is completed, exhaust end elementtubes which will automatically release the water from the voidvolume, prior to removal

30、of apparatus.8.3.6 Use or failure of this joint water test shall not precludeacceptance by appropriate water infiltration or exfiltrationtesting (see Practice C969), or other means.9. Precision and Bias9.1 No justifiable statement is presently capable of beingmade either on precision or bias of thes

31、e procedures since thetest results merely state whether this is in conformance to thecriteria for success specified. Due to the sealing effects ofgroundwater and internal flow on concrete sewer lines, the testconditions and results are not reproducible.ASTM International takes no position respecting

32、 the validity of any patent rights asserted in connection with any item 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 standar

33、d is subject to revision at any time by the responsible technical committee 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

34、 Headquarters. Your comments will receive careful consideration at a 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.Thi

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