1、Designation: C1619 19Standard Specification forElastomeric Seals for Joining Concrete Structures1This standard is issued under the fixed designation C1619; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision.
2、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 specification covers the physical property require-ments of elastomeric seals (gaskets) used to seal the joints ofprecast concre
3、te structures conforming to Specifications C14,C14M, C118, C118M, C361, C361M, C443, C443M, C505,orC505M used in gravity and low head pressure applications.1.2 Requirements are given for natural or synthetic rubbergaskets, or a combination of both.1.3 The values stated in inch-pound units are to be
4、regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.4 The following precautionary caveat pertains only to thetest method portion, Section 8, of this specification. Thisstandard does not p
5、urport to address all of the safety concerns,if any, associated with its use. It is the responsibility of the userof this standard to establish appropriate safety, health, andenvironmental practices and determine the applicability ofregulatory limitations prior to use.1.5 This international standard
6、 was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Refer
7、enced Documents2.1 ASTM Standards:2C14 Specification for Nonreinforced Concrete Sewer, StormDrain, and Culvert PipeC14M Specification for Nonreinforced Concrete Sewer,Storm Drain, and Culvert Pipe (Metric)C118 Specification for Concrete Pipe for Irrigation or Drain-ageC118M Specification for Concret
8、e Pipe for Irrigation orDrainage (Metric)C361 Specification for Reinforced Concrete Low-HeadPressure PipeC361M Specification for Reinforced Concrete Low-HeadPressure Pipe (Metric)C443 Specification for Joints for Concrete Pipe andManholes, Using Rubber GasketsC443M Specification for Joints for Concr
9、ete Pipe andManholes, Using Rubber Gaskets (Metric)C497 Test Methods for Concrete Pipe, Concrete BoxSections, Manhole Sections, or TileC497M Test Methods for Concrete Pipe, Concrete BoxSections, Manhole Sections, or Tile (Metric)C505 Specification for Nonreinforced Concrete IrrigationPipe with Rubbe
10、r Gasket JointsC505M Specification for Nonreinforced Concrete IrrigationPipe With Rubber Gasket Joints (Metric)C822 Terminology Relating to Concrete Pipe and RelatedProductsD395 Test Methods for Rubber PropertyCompression SetD412 Test Methods for Vulcanized Rubber and Thermoplas-tic ElastomersTensio
11、nD471 Test Method for Rubber PropertyEffect of LiquidsD573 Test Method for RubberDeterioration in an AirOvenD1149 Test Methods for Rubber DeteriorationCracking inan Ozone Controlled EnvironmentD1566 Terminology Relating to RubberD2240 Test Method for Rubber PropertyDurometer Hard-nessD2527 Specifica
12、tion for Rubber SealsSplice Strength3. Terminology3.1 DefinitionsFor definitions of terms relating to concretepipe, see Terminology C822. For definitions relating to rubberor elastomers, see Terminology D1566.4. Classification4.1 In order to provide for the various types of seals andrequirements, mu
13、ltiple classifications have been established.4.1.1 Class A is generally intended to cover seals in lowhead pressure piping applications not exceeding 125 ft (375kPa) where premium physical properties are required.1This specification is under the jurisdiction of ASTM Committee C13 onConcrete Pipe and
14、 is the direct responsibility of Subcommittee C13.08 on Joints forPrecast Concrete Structures.Current edition approved Feb. 1, 2019. Published February 2019. Originallyapproved in 2005. Last previous edition approved in 2017 as C161911(2017). DOI:10.1520/C1619-19.2For referenced ASTM standards, visi
15、t 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.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-295
16、9. 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 B
17、arriers to Trade (TBT) Committee.14.1.2 Class B is generally intended for Class A and Class Eapplications that also require special oil resistant performance.4.1.3 Class C is generally intended to cover seals in appli-cations not exceeding 30 ft (9.14 m) of hydrostatic head.4.1.4 Class D is generall
18、y intended for Class C applicationsthat also require special oil resistant performance.4.1.5 Class E is generally intended for gravity flow sewerpipe in applications not exceeding 30 ft (9.14 m) of hydrostatichead.5. Composition and Manufacture5.1 All gaskets shall be extruded or molded in such aman
19、ner that any cross-section will be dense, homogeneous, andfree of blisters, pitting, or other defects that make them unfit forthe use intended. The gaskets shall be fabricated from anelastomeric material meeting the appropriate classificationphysical property requirements in Section 7. The base poly
20、mershall be natural rubber, synthetic rubber, or a blend of both thatis acceptable to the owner.6. Dimensions and Tolerances6.1 Specified Durometer Shore A hardness shall be withinthe range given in Section 7, Table 1, and actual gasketdurometer shall conform to 65 points from the specified value.6.
21、2 Cross-sectional and circumferential dimensions and tol-erances shall comply with the relevant standard specificationthat is referencing this standard.6.3 When in its assembled position, the gasket shall not bestretched more than 30 % of its original circumference.7. Physical Requirements7.1 The se
22、aling portion of the gaskets shall comply with thephysical requirements listed in Table 1 when testing in accor-dance with Section 8.7.2 Gasket swell has a bearing on joint performance. It is theresponsibility of the manufacturer to set appropriate limits forswell and durometer change of the gasket
23、material and “washoff” for the gasket lubricant. These limits shall then be verifiedby test methods described in Test Method C497. Gasketlubricant shall not be altered, corrupted, or diluted from itsoriginal formulation as tested and certified prior to its use onthe gasket for installation purposes.
24、7.3 Class B and Class D oil resistant gaskets shall containnot less than 50 % by volume, oil resistant polymer.8. Test Methods8.1 Laboratory tests to determine the physical properties ofthe gasket to be furnished under this specification shall beperformed on the finished product as supplied or from
25、testspecimens taken from the finished product unless otherwisestated within this specification.8.1.1 Tensile Strength and ElongationSee Test MethodsD412.8.1.2 HardnessSee Test Method D2240, with the excep-tion of Section 5. The determination shall be taken directly onthe gasket. The presser foot sha
26、ll be applied on areas that are14 in. (6.4 mm) or greater in thickness. If14 in. (6.4 mm) orgreater thickness is not available, thinner samples shall be pliedup to obtain this thickness.8.1.3 Compression SetSee Test Methods D395 Method B.Test conditions to be 22 h at 70C. Specimen shall not beprepar
27、ed from laboratory cured slabs or by direct molding.Because testing is required on the finished product, specimensshall not be prohibited from deviating from the standarddimensions as per Test Methods D395 section 5.6.8.1.4 Accelerated AgingSee Test Method D573. Test con-ditions to be 96 h at 70C.8.
28、1.5 Water AbsorptionSee Test Method D471. Use dis-tilled water for the standard liquid test. When a 1 in. wide testsample cannot be obtained, use the greatest width obtainable.Test conditions shall be 48 h at 70C. At test completion,immediately remove from water, blot the specimen dry, anddetermine
29、specimen weight. Calculate the volume increase.8.1.6 Ozone ResistanceDetermine the resistance to ozonein accordance with Test Method D1149.8.1.6.1 Test specimens shall be constructed from a finishedgasket cross-section and of type A.8.1.6.2 Conduct test for 72 h in 50 PPHM concentration at40C (104 6
30、 4F) stressed at 20 % extension.8.1.7 Oil Immersion TestingSee Test Method D471. De-termine resistance to oil by calculating % volume change afterimmersing product specimen in ASTM IRM 903 oil for 70 h at100C.8.1.8 Splice Strength ClassificationSee SpecificationD2527. No specimen for destructive tes
31、t or no seal fornondestructive test shall show sign of damage at the splice.9. Test Frequency9.1 When specified in Table 1, verification of the physicalproperties for tensile, elongation, hardness, oven aging, andTABLE 1 Physical Property Requirements for Elastomeric SealsClass A Class B Class C Cla
32、ss D Class ETensile, min, psi (MPa) 2300 (15.9) 1500 (10.3) 1200 (8-3) 1200 (8.3) 1800 (12.4)Elongation at break, min, % 425 350 350 350 425Specified Hardness, Shore A 40-60 40-60 40-60 40-60 40-60Oven-Age Tensile reduction, max % of original 15 20 15 20 15Oven-Age Elongation reduction, max % of ori
33、ginal 20 40 20 40 20Oven-Age hardness increase, max 15 15 Compression Set, max % 20 20 25 25 20Water Absorption, max % weight increase 5 15 10 15 5Ozone Resistance level, 50 pphm No cracks No cracks No cracks No cracks No cracksLiquid Immersion IRM 903 Oil. Max % volume change 80 80 Splice Strength
34、Classification Class 3 Class 2 Class 3 Class 2 Class 3C1619 192compression set shall be performed on the finished product foreach run startup and at a minimum of every 20 000 lb (9072kg) of rubber processed after a run setup. A run startup shall bedefined as the beginning of the production run of a
35、particularcross-section of gasket and/or after significantly changing theprocessing equipment set up parameters to recover from asubstantial event.9.2 When specified in Table 1, verification of the physicalproperties for water absorption, ozone resistance, and oilimmersion shall be verified on an an
36、nual basis on a finishedproduct sample of the elastomeric formulation of the gasket.9.3 Formulation content of base polymer, polymer blends,or other materials shall be verified during the formulationdevelopment.10. Certification10.1 At the option of the purchaser, certified copies of testreports on
37、the elastomer from which the shipment of gasketswas made shall be furnished by the gasket supplier.11. Storage11.1 The rubber gaskets shall be stored in a cool, clean, andshaded environment. The preferred temperature is 70F (21C)or lower.12. Marking12.1 The gasket markings shall include at a minimum
38、 thegasket manufacturers name or symbol, nominal pipe size,ASTM designation, classification, gasket cross-section (if otherthan circular), cut length or volume, production run number,and month and year of manufacture.12.2 Additional markings and color designations shall beagreed upon by the pipe man
39、ufacturer and the gasket manu-facturer.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 rights, and the
40、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 for revision of
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