ASTM C1103-2003 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的接头验收试验的标准规程》.pdf

1、Designation: C 1103 03Standard Practice forJoint Acceptance Testing of Installed Precast Concrete PipeSewer Lines1This standard is issued under the fixed designation C 1103; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year

2、of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) 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 e

3、itherair 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 test method is advised that methods desc

4、ribedherein 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 A complete metric companion to Practice C 1103 hasbeen developedC 1103M; therefore, no metric equivalentsare presented in this practice.NOTE 2The

5、 owner shall specify the 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 criter

6、ia presentedin this practice are similar to those in general use. Pipe 24-in. diameter andsmaller shall be accepted by infiltration or exfiltration testing utilizingPractice C 969 or by low pressure air testing utilizing Practice C 924. Pipegreater than 24-in. diameter shall be accepted by infiltrat

7、ion or exfiltrationtesting utilizing C 969.NOTE 4The user of this practice is advised that no correlation hasbeen found between air loss and water leakage.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

8、this standard to establish appro-priate safety 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:2C 822 Terminology Relating to Concrete Pipe and RelatedProductsC 924 Pr

9、actice for Testing Concrete Pipe Sewer Lines byLow-Pressure Air Test MethodC 969 Practice for Infiltration and Exfiltration AcceptanceTesting of Installed Precast Concrete Pipe Sewer Lines3. Terminology3.1 DefinitionsFor definitions of terms relating to con-crete pipe, see Terminology C 822.4. Summa

10、ry 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 sealing 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, lo

11、ss is used to determine theacceptability of the installed sewer line.5. Significance and Use5.1 This is not a routine test. The values 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

12、 prepared properly and proper procedures are not followed.6.2 It is imperative that all pressures be relieved completelybefore the 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 creat

13、ed by the joint test apparatus. The pressuresrequired to seal the end element tubes shall be as specified bythe apparatus manufacturer, 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

14、and avoid overpressurization.7. Preparation of the Sewer Joint7.1 Check the size of access openings to ensure that the testapparatus will fit in the sewer line.1This practice is under the jurisdiction of ASTM Committee C13 on ConcretePipe and is the direct responsibility of Subcommittee C13.09 on Me

15、thods of Test.Current edition approved November 1, 2003. Published January 2004. Originallyapproved in 1989. Last previous edition approved in 2002 as C 110302.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of

16、 ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.7.2 Clean the joint and interior joint surfaces to eliminatedebris prior to wetting an

17、d 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. This can be overcome by wetting the pipe.7.3 Review safety precautions in Section 6.8. Procedures8.1 The following proc

18、edures apply to testing with either airor water.8.1.1 Determine groundwater conditions surrounding thesewer 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, thesew

19、er line or joint is acceptable in accordance with PracticeC 969 and no additional testing is required. If one or morejoints are leaking, but the total amount of leakage in the sewerline being tested is equal to, or less than, the allowable leakagerate established in accordance with Practice C 969, t

20、he line isacceptable and no additional testing is required providedvisible leaks are repaired. Moisture or 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

21、the joint testapparatus.8.1.4 Move the joint test apparatus into the sewer line to thejoint to be tested and 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

22、dead center.8.1.5 Inflate end element sealing tubes with air in accor-dance with equipment and manufacturers instructions.NOTE 6The user of this practice is advised that all test pressures aremeasured as gage pressure, which is defined as any pressure greater thanatmospheric pressure. Since water pr

23、oduces a pressure of 0.43 psi forevery foot of depth, test pressures must be increased to offset the depth 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 gage, the

24、joint test method shall not beused and the infiltration test may be used (see Practice C 969).NOTE 7An air 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 varianc

25、es intest equipment and joint space will be negated. The reservoir shall have aminimum volume of 2.5 ft3.8.2 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 te

26、mperature to stabilize beforeshutting off the air supply, and start of test timing.8.2.3 If pressure holds, 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 rete

27、sted, in accordance with thispractice.8.2.5 After the joint test is completed, exhaust void volume,then exhaust 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 Pract

28、ice C 969), or other means.8.3 Joint Water Test:8.3.1 Review procedures in 8.1.8.3.2 Introduce water into 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.

29、8.3.3 If the pressure holds, or drops less than 1 psi in 5 s, thejoint is acceptable. Practically, the test 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,

30、exhaust end elementtubes which will automatically release the water from the voidvolume, prior to removal of apparatus.8.3.6 Use or failure of this joint water test shall not precludeacceptance by appropriate water infiltration or exfiltrationtesting (see Practice C 969), or other means.9. Precision

31、 and Bias9.1 No justifiable statement is presently capable of beingmade either on precision or bias of these 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

32、 lines, the testconditions and results are not reproducible.ASTM International takes no position respecting 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 pa

33、tent 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 committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited ei

34、ther for revision of this standard or for additional standardsand should be addressed to ASTM International 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

35、 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 Drive, 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).C1103032