ASTM D2202-2000(2010) Standard Test Method for Slump of Sealants《密封胶坍落的标准试验方法》.pdf

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1、Designation: D2202 00 (Reapproved 2010)Standard Test Method forSlump of Sealants1This standard is issued under the fixed designation D2202; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in pare

2、ntheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method covers a laboratory procedure for thedetermination of the degree of slump of a sealant when used ina vertical joint in a structure.1

3、.2 The values stated in either inch-pound or SI (metric)units are to be separately regarded as the standard. Within thetext, the inch-pound units are shown in parentheses.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility

4、 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.NOTE 1A related ISO standard is ISO 7390. The user should compareto determine how it differs from this test method.2. Referenced Documents2.1 AS

5、TM Standards:2C717 Terminology of Building Seals and Sealants2.2 ISO Standards:3ISO 7390 Building ConstructionSealantsDeterminationof Resistance to Flow3. Terminology3.1 DefinitionsRefer to Terminology C717 for definitionsof the following terms found in this test method: bead, joint,sealant.4. Signi

6、ficance and Use4.1 Excessive sealant slump or sag in a vertical joint maycause improper bead shape or inadequate sealant thickness inthe completed joint. Slump measurements, as described in thistest method, serve to evaluate only this application character-istic; they do not predict the performance

7、capability of thesealant after installation.5. Apparatus5.1 Flow Test Jig, constructed in accordance with Fig. 1 (SIunits) or Fig. 2 (inch-pound units).NOTE 2Most existing flow test jigs have been constructed in inch-pound units. Preferred construction of new jigs is as described in Fig. 1 inSI unit

8、s.5.2 Gravity Convection Oven, having a temperature con-trolled at 50 6 2C (122 6 3.6F).5.3 Steel Spatula:5.4 Plastic Scraper, such as an ordinary 114 by 114-mm(412 by 412-in.) plastic tile.6. Reagent6.1 Solvent, such as methyl ethyl ketone.7. Sampling7.1 Take test specimens from a previously unopen

9、ed con-tainer and mix thoroughly before using, if required for homo-geneity.8. Conditioning8.1 Condition both the test jig and the sealant to be testedfor at least5hat236 2C (73.4 6 3.6F).9. Procedure9.1 Thoroughly clean the test jig with the solvent; then placeit on a level table with the front fac

10、e upward and the plungerdepressed to the limit of its travel.9.2 Place the mixed, conditioned sealant in the jig cavity.Level the sealant flush with the surface of the block, using onegentle upward stroke of the plastic scraper held at a 45 angle.Avoid forming air pockets in the sealant, especially

11、near thesurface of the plunger.9.3 Carefully clean the area around the cavity with theplastic scraper and a cloth; then place the jig immediately on itsend and advance the plunger gently to one half its maximum1This test method is under the jurisdiction ofASTM Committee C24 on BuildingSeals and Seal

12、ants and is the direct responsibility of Subcommittee C24.20 onGeneral Test Methods.Current edition approved June 1, 2010. Published July 2010. Originally approvedin 1963 as D2202 63 T. Last previous edition approved in 2006 asD2202 00(2006). DOI: 10.1520/D2202-00R10.2For referenced ASTM standards,

13、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 website.3Available from American National Standards Institute, 11 W. 42nd St., 13thFloor, New York, N

14、Y 10036.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.travel, or 4.75 mm (316 in.). This leaves a solid cylinder ofcaulking or sealant 38.1 mm (112 in.) in diameter and 4.75 mm(316 in.) thick, ready to flow down the face of the ins

15、trument.9.4 Place the jig immediately in a vertical position on a levelshelf in the oven and condition it for 30 min at 50 6 2C (1226 3.6F), taking care to avoid any movement or vibration ofthe oven during this period.9.5 At the conclusion of the 30-min period, take a reading,to the nearest 0.2 mm (

16、0.01 in.) of the maximum point of flowof the compound.NOTE 1For the Flow Test Jig, each scale division equals 2 mm.NOTE 2 Material, aluminum alloy; finish, liquid hone; tolerances, (0.08 mm) unless otherwise indicated.FIG. 1 Flow Test Jig (SI Units)D2202 00 (2010)29.6 Clean the jig and recondition i

17、t as specified in 8.1.9.7 Repeat 9.1-9.5 with another specimen of sealant.10. Report10.1 Report the slump readings obtained in each of two testsfor each specimen as well as the average value.NOTE 1For the Flow Test Jig, each scale division equals110 in.NOTE 2 Material, aluminum alloy; finish, liquid

18、 hone; tolerances, 60.003 in. unless otherwise indicated.FIG. 2 Flow Test Jig (Inch-Pound Units)D2202 00 (2010)311. Precision and Bias411.1 PrecisionThe precision statements for this testmethod were obtained from two separate inter-laboratory tests.In one, five laboratories tested two (2) oil-based

19、sealants, eachin triplicate. The results are given in Table 1. In the other, fourlaboratories tested four (4) solvent release sealants, each induplicate.11.1.1 Repeatability for Oil-Based SealantsAt 95 % con-fidence, a variation of as much as 1.07 mm (0.042 in.) can beexpected between two test resul

20、ts obtained by the sameoperator on the same material.11.1.2 Reproducibility for Oil-Based SealantsAt 95 %confidence, a variation of as much as 1.93 mm (0.076 in.) canbe expected between two test results obtained by differentoperators in different laboratories on the same material.11.1.3 The data for

21、 oil based sealants was generated bytesting each sealant in triplicate, whereas the procedure in thistest method specifies only duplicate testing. Duplicate testingmay yield more variable results than indicated in Table 1.11.1.4 Repeatability for Solvent-Release SealantsAt 95 %confidence, a variatio

22、n of as much as 1.35 mm (0.053 in.) canbe expected between two test results obtained by the sameoperator on the same material.11.1.5 Reproducibility for Solvent Release SealantsAt95 % confidence, a variation of as much as 1.88 mm (0.074 in.)can be expected between two test results obtained by differ

23、entoperators in different laboratories on the same material.11.2 BiasSince there is no accepted reference materialsuitable for determining the bias for this test method, bias hasnot been determined.12. Keywords12.1 sag; sealant; slumpASTM International takes no position respecting the validity of an

24、y 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 standard is subject to rev

25、ision 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 Headquarters. Your

26、 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.This standard is copyr

27、ighted 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

28、 (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).4Supporting data are available from ASTM Headquarters. Request RR:C24-1026 and RR:C24-1039.TABLE 1 Precision and Bias DataMaterialAverage,mmEstimatedStandardDeviation(WithinLaboratory)EstimatedStandardDeviation(BetweenLaboratory)Repeat-ability(Internal)Reproduc-ibilityG1G20.0370.1720.0060.0150.0270.0270.0170.0420.0760.076D2202 00 (2010)4