1、Designation: C 1216 03Standard 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 revision, the yea
2、r of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) 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 performance of one-partela
3、stomeric, 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 not aware of anys
4、imilar 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 limitations prior to
5、 use. For a specificprecautionary statement, see Note 2.2. Referenced Documents2.1 ASTM Standards:C 33 Specification for Concrete Aggregates2C 109 Test Method for Compressive Strength of HydraulicCement Mortars (Using 2-in. or 50-mm Cube Specimens)3C 150 Specification for Portland Cement3C 717 Termi
6、nology of Building Seals and Sealants42.2 Aluminum Association Standard:DAF-45 Designation System for Aluminum Finishes53. Terminology3.1 DefinitionsRefer to Definitions C 717 for definitionsof the following terms used in this test method: adhesivefailure, bond breaker, cohesive failure, elastomeric
7、, 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 test method evaluates
8、 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 a joint width of 11
9、.2mm (716 in.) to 14.29 mm (916 in.) at 12 6 2.8C ( +10 65F).65.2 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 temperaturecontrolled to 1
10、2 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 of the American Che
11、mical Society,where such specifications are available.7Other grades may be1This test method is under the jurisdiction of ASTM Committee C24 on BuildingSeals and Sealants and is the direct responsibility of Subcommittee C24.30 onAdhesion.Current edition approved May 10, 2003. Published June 2003. Ori
12、ginallyapproved in 1992. Last previous edition approved in 1997 as C 1216 92 (1997).2Annual Book of ASTM Standards, Vol 04.02.3Annual Book of ASTM Standards, Vol 04.01.4Annual Book of ASTM Standards, Vol 04.07.5Available from Aluminum Association, 900 19th St. NW, Washington, DC20006.6Series 520 Sea
13、lant Compound Tester, manufactured by Applied Test Systems,Inc., 348 New Castle Rd., Butler, PA 16001, and a durability tester manufactured byAmbard, Inc., 269-11 Sist Ave., New Hyde Park, NY 11040, have been foundsuitable for this purpose.7Reagent Chemicals, American Chemical Society Specifications
14、, Am. ChemicalSoc., Washington, DC. For suggestions on the testing of reagents not listed by theAmerican Chemical Society, 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
15、Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.used, provided it is first ascertained that the reagent is ofsufficiently high purity to permit its use without lessening theaccuracy of the determination.6.2 Acetone or Methyl Ethyl Ketone Solvents.6.3 Detergent Solution.86.4 Disti
16、lled 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 containers 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
17、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 purchaser in addition to the standard substrates.7.2.1 Mortar blocks, six, prepared as described in 8.2. Theblocks shall be 25.4-
18、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.) thick. Thefloat glass may require reinforcement to survive the rigors ofthe subsequent test procedure. This must be completed
19、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 theoutside surfaces of the glass. Commercially available two-partepoxies are suitable as adhesives. Although the time ofreinforcem
20、ent 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 alloy 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 asdescri
21、bed 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 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,
22、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, whenspecified, other metallic substrates) shall be cleaned by wipingthe surface with methyl ethyl ketone or a similar solvent. Dipthe
23、 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 andallow it to air dry.NOTE 2Methyl ethyl ketone and similar solvents are toxic andflammable and should be handled with ca
24、ution 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 cement conforming to Type III ofSpecification C 150 to two parts by weight of clean, uniformly8Dawn, a registered trademark
25、of Proctor and Gamble, Co., P.O. Box 599,Cincinnati, OH 54201, or Palmolive Green, a registered trademark of ColgatePalmolive Co., 300-T Park Ave., New York, NY 10022, have been found suitable forthis purpose.NOTEThree-dimensional view of compression-extension machine with automatic control units sh
26、ows four specimens ready for compression-extension cycling.FIG. 1 Compression Extension MachineC1216032graded, concrete fine aggregate (sand) conforming to Specifi-cation C 33. Use an amount of water sufficient to produce aflow of 100 6 5 when tested in accordance with the procedurefor the determina
27、tion of consistency of cement mortar de-scribed in Test Method C 109. After curing for one day in moistair and six days in saturated lime water at 23 6 2C (73 63F), prepare the surface of 76 by 25.4 by 25.4 mm (3 by 1 by1 in.) of each slab by wet grinding, either with a belt sanderusing No. 60 alumi
28、num carbide sanding belt or by using aniron lap with No. 60 silicon carbide (or aluminum oxide) grain,until the aggregate is exposed uniformly. Return the slabs tosaturated lime water storage until needed.8.2.1 The slabs may be prepared and shipped to otherlocations for use. The slabs may be shipped
29、 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 thoroughly under running tapwater, and dry the slabs overnight at 105 to 110C (220 to230F). To remove any film or powder, clean the slabs
30、 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 PrimersWhere the use of a primer is recommended bythe sealant manufacturer, the substrate surfaces should beprimed.9. Test Specimen Preparation
31、 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 to eliminate sealant sticking to thesurface. Using the spacer bars to control the joint dimensions,form a bead of sealant 12.7-mm (12-
32、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 these specimens according to sealant manu-facturer recommendations, but not to exceed a maximum timeof 28 days and maximum temperature
33、 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 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 sealan
34、tat 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 (73.4 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
35、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 12 6 2.8C (10 6 5F). Whenextension is completed, examine, measure, and record anyinitial adhesive or cohesive loss. Remove the specime
36、ns 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 time, examine thespecimens, measure, and record adhesive or cohesive failure,or both.10.3 Remove the spacers from the specimens. Inse
37、rt11.1-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 event of aweekend at this point in the test cycle, condition the specimensunrestrained at standard conditions.10.4 Remove the specimens
38、 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 10.2-10.4 an additional fourtimes.11. Report11.1 Measure and record any cohesive failure or adhesivefailure, or both, in square centimetres (
39、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 determine the total failure area.11.2 Record the data on a report form (Fig. 3). Record anyother observations such as bubble formation, s
40、ealant deforma-tion, etc.11.3 If other than standard substrates are tested, provide acomplete description, including priming and preparations, ifthey deviate from the instructions.FIG. 2 Test SpecimenC121603312. Precision and Bias12.1 The precision and bias of this test method has beenconducted on c
41、oncrete only. Although the results may varyaccording to substrate, other substrates may provide moreconsistent results due to inconsistencies in concrete.12.2 The repeatability within a given laboratory interval forthree materials tested by five laboratories is 1.79 cm2(0.278in.2). The difference be
42、tween 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 The reproducibility between a given laboratory intervalfor three materials tested by five laboratories is 5.64 cm2(0.875in.2). The difference b
43、etween 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.13. Keywords13.1 adhesion; cohesion; joint movement; sealant; solvent-releaseASTM International takes no position respecting the validity of an
44、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
45、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
46、 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
47、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
48、 (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 Adhesion 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 SealantC1216034
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