1、Designation: C1216 03 (Reapproved 2008)C1216/C1216M 13Standard Test Method forAdhesion and Cohesion of One-Part Elastomeric SolventRelease Sealants1This standard is issued under the fixed designation C1216;C1216/C1216M; the number immediately following the designation indicatesthe year of original a
2、doption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of lastreapproval. A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method is a laboratory procedure that determines the adhesi
3、on and cohesion performance of one-part elastomeric,solvent release sealants at high and low temperatures by the extension and compression of test specimens.1.2 The values stated in either SI units or inch-pound units are to be regarded separately as the standard. The values given inparentheses are
4、for information only. stated in each system may not be exact equivalents; therefore, each system shall be usedindependently of the other. Combining values from the two systems may result in non-conformance with the standard.1.3 The subcommittee with jurisdiction is not aware of any similar ISO stand
5、ard.1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use. For a specif
6、ic precautionary statement, see Note 2.2. Referenced Documents2.1 ASTM Standards:2C33 Specification for Concrete AggregatesC109/C109M Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or 50-mm Cube Specimens)C150 Specification for Portland CementC717 Terminology of Buildi
7、ng Seals and Sealants2.2 Aluminum Association Standard:DAF-45 Designation System for Aluminum Finishes33. Terminology3.1 DefinitionsRefer to DefinitionsTerminology C717 for definitions of the following terms used in this test method: adhesivefailure, bond breaker, cohesive failure, elastomeric, join
8、t, primer, sealant, solvent release sealant, substrate, and substrate. standardconditions.4. Significance and Use4.1 The failure of a building sealant in a joint that experiences movement is manifested by cohesive failure in the sealant oradhesive failure between the sealant and substrate, or both.
9、This test method evaluates the performance of one-part elastomericsolvent release sealants in joints subjected to movement and temperature aging.1 This test method is under the jurisdiction ofASTM Committee C24 on Building Seals and Sealants and is the direct responsibility of Subcommittee C24.30 on
10、 Adhesion.Current edition approved May 1, 2008May 1, 2013. Published June 2008June 2013. Originally approved in 1992. Last previous edition approved in 20032008 asC1216 03.C1216 03(2008). DOI: 10.1520/C1216-03R08.10.1520/C1216_C1216M-13.2 For referencedASTM standards, visit theASTM website, www.astm
11、.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 Available from Aluminum Association, 900 19th St. NW, Washington, DC 20006.This document is not an ASTM standard and is in
12、tended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the cur
13、rent versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States15. Apparatus5.1 Extension-Compression Machine, as shown in Fig. 1, designed to extend the test
14、specimens automatically at a constant rateof 3.20 mm (18 in.)/hin./h from a joint width of 11.2 mm (716 in.)in. to 14.29 mm (916 in.)in. at 12 6 2.8C ( +10 +10 65F).5F.45.2 Oven, forced-draft type, having the temperature controlled to 70 6 1C (158158 6 2F).2F.5.3 Oven, convection type, having the te
15、mperature controlled to 50 6 1C (122122 6 2F).2F.5.4 Freezer Chest or Cold Box, having the temperature controlled to 12 6 2.8C (+10+10 6 5F).5F.5.5 C-Clamps, or other clamping devices.6. Reagents6.1 Purity of ReagentsReagent grade chemicals shall be used in all tests. Unless otherwise indicated, it
16、is intended that allreagents shall conform to the specifications of the Committee on Analytical Reagents of the American Chemical Society, wheresuch specifications are available.5 Other grades may be used, provided it is first ascertained that the reagent is of sufficiently highpurity to permit its
17、use without lessening the accuracy 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 unopened containers. Precondition the uno
18、pened containers of sealant at 236 2C (73.4 6 3.6F) andstandard conditions as defined in Terminology C717 50 6 5 % relative humidity for a minimum of 24h.4 Series 520 Sealant Compound Tester, manufactured by Applied Test Systems, Inc., 348 New Castle Rd., Butler, PA 16001, and a durability tester ma
19、nufactured byAmbard, Inc., 269-11 Sist Ave., New Hyde Park, NY 11040, have been found suitable for this purpose.The sole source of supply of the apparatus known to the committee at this time is Applied Test Systems and Ambard. If you are aware of alternative suppliers, pleaseprovide this information
20、 to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of the responsible technical committee,1 whichyou may attend.5 Reagent Chemicals, American Chemical Society Specifications , Am. Chemical Soc., Washington, DC. For suggestions on the testing of reagent
21、s not listed by theAmerican Chemical Society, see Reagent Chemicals and Standards, by Joseph Rosin, D. Van Nostrand Co., Inc., New York, NY, and the United States Pharmacopeia .6 Dawn, a registered trademark of Proctor and Gamble, Co., P.O. Box 599, Cincinnati, OH 54201, or Palmolive Green, a regist
22、ered trademark of Colgate Palmolive Co.,300-T Park Ave., New York, NY 10022, have been found suitable for this purpose.NOTE 1Three-dimensional view of compression-extension machine with automatic control units shows four specimens ready for compression-extension cycling.FIG. 1 Compression Extension
23、MachineC1216/C1216M 1327.2 The standard substrates used in the test shall be Portland cement 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, p
24、repared as described in 8.2. The blocks shall be 25.4-mm (1-in.)1-in. wide by 76.2-mm (3-in.)3-in.long by 25.4-mm (1-in.)1-in. thick.7.2.2 Glass Plates, six, of clear float glass 25.4-mm (1-in.)1-in. wide by 76.2-mm (3-in.)3-in. long by 6.35-mm (14-in.)-in.thick. The float glass may require reinforc
25、ement to survive the rigors of the subsequent test procedure. This must be completedprior to the 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 the outside surfaces of the glass. Commercia
26、lly available two-part epoxiesare suitable as adhesives. Although the time of reinforcement is not critical, it has been found convenient to apply the aluminumplates to the glass before preparing the test specimens.7.2.3 Aluminum Plates, six, 6063-T5 or 6061-T6 alloy clear, 25.4-mm (1-in.)1-in. wide
27、 by 76.2-mm (3-in.)3-in. long by6.35-mm (14-in.)-in. thick and anodized to AA-M32C12A31 quality as described by DAF-45.7.3 Rigid Spacer Bars, nine, 12.7 mm (12 in.)in. by 12.7 mm by 50.8 mm (2 in.);2 in.; 18 bars 12.7 mm by 12.7 mm by 25.4mm (1 in.);1 in.; 18 bars 14.29 mm (916 in.)in. by 6.35 mm (1
28、4 in.)in. by 25.4 mm (1 in.);1 in.; and 18 bars 11.1 mm (716in.)in. by 6.35 mm by 25.4 mm.7.4 Release Paper, or other suitable material, if necessary, to serve as a bond breaker to spacer bars for the preparation of testspecimens.8. Preparation of Substrates8.1 Prior to use, the glass and aluminum (
29、and, when specified, other metallic substrates) shall be cleaned by wiping the surfacewith methyl ethyl ketone or a similar solvent. Dip the surface in a 0.1 % detergent solution of a clear hand dishwashing detergentin distilled or deionized water. Rinse the surface without touching it in distilled
30、or deionized water and allow it to air dry.NOTE 2Methyl ethyl ketone and similar solvents are toxic and flammable and should be handled with caution in a well-ventilated area.8.2 Mortar SlabsPrepare cement mortar slabs, each 76 by 25.4 by 25.4 mm (33 by 1 by 1 in.)in. in size, using one part ofhigh
31、early strength Portland cement conforming to Type III of Specification C150 to two parts by weight of clean, uniformlygraded, concrete fine aggregate (sand) conforming to Specification C33. Use an amount of water sufficient to produce a flow of100 6 5 when tested in accordance with the procedure for
32、 the determination of consistency of cement mortar described in TestMethod C109/C109M. After curing for one day in moist air and six days in saturated lime water at 23 6 2C (7373 6 3F),3F,prepare the surface of 76 by 25.4 by 25.4 mm (33 by 1 by 1 in.)in. of each slab by wet grinding, either with a b
33、elt sander usingNo. 60 aluminum carbide sanding belt or by using an iron lap with No. 60 silicon carbide (or aluminum oxide) grain, until theaggregate is exposed uniformly. Return the slabs to saturated lime water storage until needed.8.2.1 The slabs may be prepared and shipped to other locations fo
34、r use. The slabs may be shipped dry and shall be returned tolime water storage upon arrival until needed.8.2.2 Prior to use, wet grind the previously ground surface to remove any laitance, rinse thoroughly under running tap water,and dry the slabs overnight at 105 to 110C (220220 to 230F).230F. To r
35、emove any film or powder, clean the slabs by vigorousbrushing with a stiff-bristled fiber brush. Condition the slabs at 23 6 2C (73.473.4 6 3.6F)3.6F for no less than one day andnot more than seven days.8.3 PrimersWhere the use of a primer is recommended by the sealant manufacturer, the substrate su
36、rfaces should be primed.9. Test Specimen Preparation and Conditioning9.1 Prepare three test specimens (Fig. 2) for each substrate to be tested as follows. If necessary, a bond breaker is placed on thespacer bar surface to eliminate sealant sticking to the surface. Using the spacer bars to control th
37、e joint dimensions, form a beadof sealant 12.7-mm (12-in.)-in. wide by 12.7-mm thick by 50.8-mm (2-in.)2-in. long between the parallel 25.4-mm (1-in.)1-in.wide by 76.2-mm (3-in.)3-in. long faces of two similar blocks or plates.9.2 Condition these specimens according to sealant manufacturer recommend
38、ations, but not to exceed a maximum time of 28days and maximum temperature of 70 6 1C (158158 6 2F).2F.NOTE 3Sealant manufacturers should be aware that the conditioning requirements are critical factors that affect the performance of the sealant in thistest method.9.3 Place the specimens in the free
39、zer overnight (16 to 24 h) at 12 6 2.8C (1010 6 5F).5F. Dislodge spacer bars fromsealant at the end of that time, but do not remove the spacer bars from the assembled specimens.9.4 Remove the specimens from the freezer and condition them for 3 h at 23 6 2C (73.4 6 3.6F) and 50 6 5 % relativehumidity
40、.standard conditions.10. Procedure10.1 Remove the spacer blocks from the specimens.C1216/C1216M 13310.2 Place the specimens in the grips of the extension machine set at 11.1 mm (716 in.).in. Do not alter the specimendimension. Immediately initiate extension of the joint width to 14.29 mm (916 in.)in
41、. at 12 6 2.8C (1010 6 5F).5F. Whenextension is completed, examine, measure, and record any initial adhesive or cohesive loss. Remove the specimens from themachine. Insert appropriate spacers to maintain 14.29-mm (916-in.)-in. joint width. Allow to warm for 3 h at 23 6 2C (73.4 63.6F) and 50 % relat
42、ive humidity. standard conditions. At this time, examine the specimens, measure, and record adhesive orcohesive failure, or both.10.3 Remove the spacers from the specimens. Insert 11.1-mm (716-in.)-in. spacers, and compress the specimen with aC-clamp. Place the specimens in a forced-draft oven overn
43、ight (16 to 24 h) at 70 6 1C (158158 6 2F).2F. In the event ofa weekend at this point in the test cycle, condition the specimens unrestrained at standard conditions.10.4 Remove the specimens from the oven. Remove the C-clamp and spacers. Condition for a minimum of 3 h at 23 6 2C(73.4 6 3.6F) and 50
44、6 5 % relative humidity.standard conditions.10.5 Repeat the steps given in 10.2-10.4 an additional four times.11. Report11.1 Measure and record any cohesive failure or adhesive failure, or both, in square centimetres (oror square inches)inchesfor each individual test specimen of mortar, glass, and a
45、luminum. 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 any other observations such as bubble formation, sealant deformation,etc.11.3 If other than standard substrates are tested
46、, provide a complete description, including priming and preparations, if theydeviate from the instructions.12. Precision and Bias12.1 The precision and bias of this test method has been conducted on concrete only. Although the results may vary accordingto substrate, other substrates may provide more
47、 consistent results due to inconsistencies in concrete.12.2 The repeatability within a given laboratory interval for three materials tested by five laboratories is 1.79 cm2 (0.2780.278in.2). The difference between the test results obtained in the same laboratory on the same material will be expected
48、 to exceed 1.79cm 2 (0.2780.278 in.2) approximately 5 % of the time.FIG. 2 Test SpecimenC1216/C1216M 13412.3 The reproducibility between a given laboratory interval for three materials tested by five laboratories is 5.64 cm2(0.8750.875 in.2). The difference between the test results obtained in a giv
49、en laboratory on the same material will be expectedto exceed 5.64 cm2 (0.8750.875 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 any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the
