ASTM C1103-2003(2009) 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实施规程》.pdf

1、Designation: C 1103 03 (Reapproved 2009)Standard 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 r

2、evision, 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.1. Scope1.1 This practice covers procedures for testing the joints ofinstalled precast concrete pipe sewer li

3、nes, when using eitherair 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

4、that methods describedherein 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 PracticeC 1103M; therefore, no SI equivalents are presented in thepractice.NOTE 2Th

5、e 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 crite

6、ria 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 infiltra

7、tion 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 P

9、ractice 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. Summ

10、ary 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, l

11、oss 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 isno

12、t 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 crea

13、ted 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 M

15、ethods of Test.Current edition approved June 1, 2009. Published July 2009. Originally approvedin 1989. Last previous edition approved in 2003 as C 1103 03.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTM

16、Standards 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 and tes

17、ting.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 procedure

18、s 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, thesewer li

19、ne 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, the li

20、ne 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 the j

21、oint 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 dead

22、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 produce

23、s 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 joint

24、 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 variances in

25、test 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 tempera

26、ture 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 retested,

27、 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 Practice C

28、 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.8.3.3

29、 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, exhau

30、st 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 and

31、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 line

32、s, 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 patent

33、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 either

34、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 hear

35、ing 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).C 1103 03 (2009)2