1、Designation: C 1216 03 (Reapproved 2008)Standard Test Method forAdhesion and Cohesion of One-Part Elastomeric SolventRelease Sealants1This standard is issued under the fixed designation C 1216; the number immediately following the designation indicates the year oforiginal adoption or, in the case of
2、 revision, 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 test method is a laboratory procedure that deter-mines the adhesion and cohesion performan
3、ce of one-partelastomeric, solvent release sealants at high and low tempera-tures by the extension and compression of test specimens.1.2 The values stated in SI units are to be regarded as thestandard. The values given in parentheses are for informationonly.1.3 The subcommittee with jurisdiction is
4、not aware of anysimilar ISO standard.1.4 This standard does not purport to address all of thesafety concerns, if 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 lim
5、itations prior to use. For a specificprecautionary statement, see Note 2.2. Referenced Documents2.1 ASTM Standards:2C33 Specification for Concrete AggregatesC 109/C 109M Test Method for Compressive Strength ofHydraulic Cement Mortars (Using 2-in. or 50-mm CubeSpecimens)C 150 Specification for Portla
6、nd CementC 717 Terminology of Building Seals and Sealants2.2 Aluminum Association Standard:DAF-45 Designation System for Aluminum Finishes33. Terminology3.1 DefinitionsRefer to Definitions C 717 for definitionsof the following terms used in this test method: adhesivefailure, bond breaker, cohesive f
7、ailure, elastomeric, joint,primer, sealant, solvent release sealant, and substrate.4. Significance and Use4.1 The failure of a building sealant in a joint that experi-ences movement is manifested by cohesive failure in thesealant or adhesive failure between the sealant and substrate, orboth. This te
8、st method evaluates the performance of one-partelastomeric solvent release sealants in joints subjected tomovement and temperature aging.5. Apparatus5.1 Extension-Compression Machine, as shown in Fig. 1,designed to extend the test specimens automatically at aconstant rate of 3.20 mm (18 in.)/h from
9、a joint width of 11.2mm (716 in.) to 14.29 mm (916 in.) at 12 6 2.8C ( +10 65F).45.2 Oven, forced-draft type, having the temperature con-trolled to 70 6 1C (158 6 2F).5.3 Oven, convection type, having the temperature con-trolled to 50 6 1C (122 6 2F).5.4 Freezer Chest or Cold Box, having the tempera
10、turecontrolled to 12 6 2.8C (+10 6 5F).5.5 C-Clamps, or other clamping devices.6. Reagents6.1 Purity of ReagentsReagent grade chemicals shall beused in all tests. Unless otherwise indicated, it is intended thatall reagents shall conform to the specifications of the Commit-tee on Analytical Reagents
11、of the American Chemical Society,where such specifications are available.5Other grades may beused, provided it is first ascertained that the reagent is of1This test method is under the jurisdiction ofASTM Committee C24 on BuildingSeals and Sealants and is the direct responsibility of Subcommittee C2
12、4.30 onAdhesion.Current edition approved May 1, 2008. Published June 2008. Originallyapproved in 1992. Last previous edition approved in 2003 as C 1216 03.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTM
13、Standards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from Aluminum Association, 900 19th St. NW, Washington, DC20006.4Series 520 Sealant Compound Tester, manufactured by Applied Test Systems,Inc., 348 New Castle Rd., Butler, PA16001, and a durabili
14、ty tester manufactured byAmbard, Inc., 269-11 Sist Ave., New Hyde Park, NY 11040, have been foundsuitable for this purpose.5Reagent Chemicals, American Chemical Society Specifications ,Am. ChemicalSoc., Washington, DC. For suggestions on the testing of reagents not listed by theAmerican Chemical Soc
15、iety, see Reagent Chemicals and Standards, by JosephRosin, D. Van Nostrand Co., Inc., New York, NY, and the United States Pharma-copeia .1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.sufficiently high purity to permit its use witho
16、ut lessening theaccuracy of the determination.6.2 Acetone or Methyl Ethyl Ketone Solvents.6.3 Detergent Solution.66.4 Distilled Water.6.5 Primer, if required.7. Sealants, Substrates, and Accessories7.1 The sealants shall be obtained from previously un-opened containers. Precondition the unopened con
17、tainers ofsealant at 23 6 2C (73.4 6 3.6F) and 50 6 5 % relativehumidity for a minimum of 24 h.7.2 The standard substrates used in the test shall be Portlandcement mortar, float glass, and aluminum alloy.NOTE 1When requested, other substrates such as brick, marble, etc.may be specified by the purcha
18、ser in addition to the standard substrates.7.2.1 Mortar blocks, six, prepared as described in 8.2. Theblocks shall be 25.4-mm (1-in.) wide by 76.2-mm (3-in.) longby 25.4-mm (1-in.) thick.7.2.2 Glass Plates, six, of clear float glass 25.4-mm (1-in.)wide by 76.2-mm (3-in.) long by 6.35-mm (14-in.) thi
19、ck. Thefloat glass may require reinforcement to survive the rigors ofthe subsequent test procedure. This must be completed prior tothe compression-extension cycling described in Section 10.Reinforcement is provided by adhering aluminum plates,25.4-mm wide by 76.2-mm long by 6.35-mm thick, to theouts
20、ide surfaces of the glass. Commercially available two-partepoxies are suitable as adhesives. Although the time ofreinforcement is not critical, it has been found convenient toapply the aluminum plates to the glass before preparing the testspecimens.7.2.3 Aluminum Plates, six, 6063-T5 or 6061-T6 allo
21、y clear,25.4-mm (1-in.) wide by 76.2-mm (3-in.) long by 6.35-mm(14-in.) thick and anodized to AA-M32C12A31 quality asdescribed by DAF-45.7.3 Rigid Spacer Bars, nine, 12.7 mm (12 in.) by 12.7 mmby 50.8 mm (2 in.); 18 bars 12.7 mm by 12.7 mm by 25.4 mm(1 in.); 18 bars 14.29 mm (916 in.) by 6.35 mm (14
22、 in.) by 25.4mm (1 in.); and 18 bars 11.1 mm (716 in.) by 6.35 mm by 25.4mm.7.4 Release Paper, or other suitable material, if necessary,to serve as a bond breaker to spacer bars for the preparation oftest specimens.8. Preparation of Substrates8.1 Prior to use, the glass and aluminum (and, whenspecif
23、ied, other metallic substrates) shall be cleaned by wipingthe surface with methyl ethyl ketone or a similar solvent. Dipthe surface in a 0.1 % detergent solution of a clear handdishwashing detergent in distilled or deionized water. Rinse thesurface without touching it in distilled or deionized water
24、 andallow it to air dry.NOTE 2Methyl ethyl ketone and similar solvents are toxic andflammable and should be handled with caution in a well-ventilated area.8.2 Mortar SlabsPrepare cement mortar slabs, each 76 by25.4 by 25.4 mm (3 by 1 by 1 in.) in size, using one part of highearly strength Portland c
25、ement conforming to Type III ofSpecification C 150 to two parts by weight of clean, uniformlygraded, concrete fine aggregate (sand) conforming to Specifi-cation C33. Use an amount of water sufficient to produce a6Dawn, a registered trademark of Proctor and Gamble, Co., P.O. Box 599,Cincinnati, OH 54
26、201, or Palmolive Green, a registered trademark of ColgatePalmolive Co., 300-T ParkAve., NewYork, NY10022, have been found suitable forthis purpose.NOTEThree-dimensional view of compression-extension machine with automatic control units shows four specimens ready for compression-extension cycling.FI
27、G. 1 Compression Extension MachineC 1216 03 (2008)2flow of 100 6 5 when tested in accordance with the procedurefor the determination of consistency of cement mortar de-scribed in Test Method C 109/C 109M. After curing for oneday in moist air and six days in saturated lime water at 23 62C (73 6 3F),
28、prepare the surface of 76 by 25.4 by 25.4 mm(3 by 1 by 1 in.) of each slab by wet grinding, either with a beltsander using No. 60 aluminum carbide sanding belt or by usingan iron lap with No. 60 silicon carbide (or aluminum oxide)grain, until the aggregate is exposed uniformly. Return theslabs to sa
29、turated lime water storage until needed.8.2.1 The slabs may be prepared and shipped to otherlocations for use. The slabs may be shipped dry and shall bereturned to lime water storage upon arrival until needed.8.2.2 Prior to use, wet grind the previously ground surfaceto remove any laitance, rinse th
30、oroughly under running tapwater, and dry the slabs overnight at 105 to 110C (220 to230F). To remove any film or powder, clean the slabs byvigorous brushing with a stiff-bristled fiber brush. Conditionthe slabs at 23 6 2C (73.4 6 3.6F) for no less than one dayand not more than seven days.8.3 PrimersW
31、here the use of a primer is recommended bythe sealant manufacturer, the substrate surfaces should beprimed.9. Test Specimen Preparation and Conditioning9.1 Prepare three test specimens (Fig. 2) for each substrateto be tested as follows. If necessary, a bond breaker is placedon the spacer bar surface
32、 to eliminate sealant sticking to thesurface. Using the spacer bars to control the joint dimensions,form a bead of sealant 12.7-mm (12-in.) wide by 12.7-mm thickby 50.8-mm (2-in.) long between the parallel 25.4-mm (1-in.)wide by 76.2-mm (3-in.) long faces of two similar blocks orplates.9.2 Condition
33、 these specimens according to sealant manu-facturer recommendations, but not to exceed a maximum timeof 28 days and maximum temperature of 70 6 1C (158 62F).NOTE 3Sealant manufacturers should be aware that the conditioningrequirements are critical factors that affect the performance of the sealantin
34、 this test method.9.3 Place the specimens in the freezer overnight (16 to 24 h)at 12 6 2.8C (10 6 5F). Dislodge spacer bars from sealantat the end of that time, but do not remove the spacer bars fromthe assembled specimens.9.4 Remove the specimens from the freezer and conditionthem for3hat236 2C (73
35、.4 6 3.6F) and 50 6 5 % relativehumidity.10. Procedure10.1 Remove the spacer blocks from the specimens.10.2 Place the specimens in the grips of the extensionmachine set at 11.1 mm (716 in.). Do not alter the specimendimension. Immediately initiate extension of the joint width to14.29 mm (916 in.) at
36、 12 6 2.8C (10 6 5F). Whenextension is completed, examine, measure, and record anyinitial adhesive or cohesive loss. Remove the specimens fromthe machine. Insert appropriate spacers to maintain 14.29-mm(916-in.) joint width. Allow to warm for3hat236 2C (73.46 3.6F) and 50 % relative humidity.At this
37、 time, examine thespecimens, measure, and record adhesive or cohesive failure,or both.10.3 Remove the spacers from the specimens. Insert11.1-mm (716-in.) spacers, and compress the specimen with aC-clamp. Place the specimens in a forced-draft oven overnight(16 to 24 h) at 70 6 1C (158 6 2F). In the e
38、vent of aweekend at this point in the test cycle, condition the specimensunrestrained at standard conditions.10.4 Remove the specimens from the oven. Remove theC-clamp and spacers. Condition for a minimum of3hat2362C (73.4 6 3.6F) and 50 6 5 % relative humidity.10.5 Repeat the steps given in 10.2-10
39、.4 an additional fourtimes.11. Report11.1 Measure and record any cohesive failure or adhesivefailure, or both, in square centimetres (or square inches) foreach individual test specimen of mortar, glass, and aluminum.Measure the width and depth of the failure on both substratesof each specimen to det
40、ermine the total failure area.11.2 Record the data on a report form (Fig. 3). Record anyother observations such as bubble formation, sealant deforma-tion, etc.11.3 If other than standard substrates are tested, provide acomplete description, including priming and preparations, ifthey deviate from the
41、 instructions.12. Precision and Bias12.1 The precision and bias of this test method has beenconducted on concrete only. Although the results may varyFIG. 2 Test SpecimenC 1216 03 (2008)3according to substrate, other substrates may provide moreconsistent results due to inconsistencies in concrete.12.
42、2 The repeatability within a given laboratory interval forthree materials tested by five laboratories is 1.79 cm2(0.278in.2). The difference between the test results obtained in thesame laboratory on the same material will be expected toexceed 1.79 cm2(0.278 in.2) approximately 5 % of the time.12.3
43、The reproducibility between a given laboratory intervalfor three materials tested by five laboratories is 5.64 cm2(0.875in.2). The difference between the test results obtained in a givenlaboratory on the same material will be expected to exceed5.64 cm2(0.875 in.2) only approximately 5 % of the time.
44、13. Keywords13.1 adhesion; cohesion; joint movement; sealant; solvent-releaseASTM 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 validi
45、ty of any such patent 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 commen
46、ts are invited either 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 no
47、t received a fair 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 cop
48、ies) 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).SUBMITTED BY: _CYCLE NO. 1 CYCLE NO. 2 CYCLE NO. 3 CYCLE NO. 4 CYCLE NO. 5 TOTALAdhesion Cohesion Adhesi
49、on Cohesion Adhesion Cohesion Adhesion Cohesion Adhesion Cohesion Adhesion CohesionTest Specimen Loss CM2Loss CM2Loss CM2Loss CM2Loss CM2Loss CM2Loss CM2Loss CM2Loss CM2Loss CM2Loss CM2Loss CM2Glass123Aluminum123Mortar123CommentsFIG. 3 Adhesion and Cohesion; One-Part Solvent Release Elastomeric SealantC 1216 03 (2008)4
