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ASTM_C_1635_-_16.pdf

1、Designation:C163516Standard Test Method toEvaluate Adhesion/Cohesion Properties of a Sealant atFixed Extension1This standard is issued under the fixed designation C1635;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last

2、 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 test method describes a laboratory procedure formeasuring the adhesion/cohesion properties of a sealant whensubjected to t

3、ensile loads resulting from an applied specifiedstrain.The adhesion/cohesion properties are evaluated before,during,and after water immersion.1.2 This test method examines the adhesive and cohesiveperformance of a sealant on a specified substrate at a strainequivalent to a multiple of the strain/mov

4、ement capabilitydesignated by the manufacturer for the given sealant perSpecification C920.1.3 The values stated in SI(metric)units are to be regardedas the standard.The inch values given in parentheses are forinformation only.1.4 This standard does not purport to address all of thesafety concerns,i

5、f any associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.1.5 Comparable Test:1.5.1 ISO 10590,Building construction-Jointing products-Sealants-Determ

6、ination of adhesion/cohesion properties atmaintained extension after immersion in water1.5.2 ISO 8340,Building construction-Jointing products-Sealants-Determination of tensile properties at maintainedextension2.Referenced Documents2.1 ASTM Standards:2C717 Terminology of Building Seals and SealantsC7

7、19 Test Method for Adhesion and Cohesion of Elasto-meric Joint Sealants Under Cyclic Movement(HockmanCycle)C920 Specification for Elastomeric Joint SealantsC1375 Guide for Substrates Used in Testing Building Sealsand Sealants3.Terminology3.1 DefinitionsRefer to Terminology C717 for definitionsof ter

8、ms used in this standard,including but not limited to thefollowing:adhesive failure,casting spacers,cohesive failure,standard conditions.3.2 separatorsthe device or item used to maintain thespecimens at fixed extension.4.Summary of Test Method4.1 Test specimens made in accordance with dimensions set

9、forth in Test Method C719 are fabricated and allowed to cure.4.2 Test specimens are extended at standard conditions asdefined in Terminology C717 to a specified strain and blockedat the strain for a specified period of time.4.3 The test specimens are examined for adhesive or cohe-sive failure,or bot

10、h,of the sealant at 0,24 and 168 h.4.4 A duplicate set of three test specimens are cured atstandard conditions as defined in Terminology C717,extendedto a specified strain,and then immersed(totally)in deionizedwater or specified medium(3 specimens/liter of liquid).4.5 Immersed test specimens are obs

11、erved at 0,24 and 168and other additional specified hours.4.6 This test method uses ASTM standard substrates asdescribed in Guide C1375.This test method does not excludethe use of any other substrate that provides a suitable flatsurface.5.Significance and Use5.1 In any sealant application,the sealan

12、t must be capable ofmaintaining an adhesive bond to the substrate when held instrain for its intended service life.5.2 This test method is an indicator of a sealants ability toadhere under strain to a given substrate.1This test method is under the jurisdiction ofASTM Committee C24 on BuildingSeals a

13、nd Sealants and is the direct responsibility of Subcommittee C24.30 onAdhesionCurrent edition approved June 1,2016.Published July 2016.Originally approvedin 2006.Last previous edition approved in 2014 as C1635-14.DOI:10.1520/C1635-16.2For referenced ASTM standards,visit the ASTM website,www.astm.org

14、,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 19428-2959.United States1 5.3 The default test s

15、train is the movement ability of thesealant as designated by the manufacturer.The default jointconfiguration is 12.7 12.7 50.8 mm(1212 2 in.).Otherstrains and joint configurations may be used and reported asnoted in Section 8 and Table 1.6.Apparatus and Materials6.1 Container,for immersion made of a

16、 material compatiblewith the immersion medium.6.2 Device,to provide a strain on the test specimen.6.3 Spatulas,for use in applying the sealant.6.4 Caulking Gun,for extruding sealant from cartridgeswhen applicable.6.5 SubstratesTwelve substrates minimum of 25.4 76.2mm(1 3 in.)of the same finish are required for each testsample.6.6 Casting SpacersMade from polytetrafluoroethylene(PTFE)or a suitable rigid material shall be used with each testspecimen to which the test sealant will not bond and will

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