1、Designation:D3409/D3409M93(Reapproved 2016)1Standard Test Method forAdhesion of Asphalt-Roof Cement to Damp,Wet,orUnderwater Surfaces1This standard is issued under the fixed designation D3409/D3409M;the number immediately following the designation indicates theyear of original adoption or,in the cas
2、e 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.1NOTEUnits information was editorially corrected in January 2016.1.Scope1.1 This test method covers the dete
3、rmination of the adhe-sion of asphalt roofing cements to damp,wet,or underwatersurfaces.1.2 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently
4、of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.3 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 pra
5、ctices and determine the applica-bility of regulatory limitations prior to use.2.Summary of Test Method2.1 A metal lid is covered with a coating of asphalt roofingcement and immersed in water.A similar metal lid which hasbeen flamed and wet with water is pressed on the asphalticsurface.The degree of
6、 adhesion is evaluated by estimating thepercentage of area covered by the cement on the water-wetflamed metal lid.3.Significance and Use3.1 This test method offers a means of evaluating theadhesive properties of asphalt roofing cements used to repairroofs under adverse conditions.Weathered roof surf
7、aces areeasily coated with asphalt roofing cements when they are dry,however when wet or during a rain,asphalt roofing cementsmay not adhere readily to water-wet surfaces such as metalflashings or asphalt roll roofing.The flamed metal lids used inthis test method simulate weathered roof surfaces.4.A
8、pparatus4.1 Metal Lids2Slip-on covers supplied with 89-mL 3-fluid oz capacity seamless metal containers,approximately 55mm in diameter and with a raised rim 1 mm high and 3 mmwide.4.2 Water BathA bath with a flat bottom surface having acapacity of at least 1 L 1 qt which can be filled with tap water
9、to a minimum depth of 51 mm 2 in.and maintained at 20 63C 68 6 5F.5.Sampling5.1 Stir the sample thoroughly to ensure homogeneity be-fore removing a portion for testing.5.2 If the size of the sample is 4 L 1 gal or over,a portionmay be removed and stored in a 1-L 1-qt triple-seal,friction-top can.6.P
10、rocedure6.1 Spread 5 g of the cement on the top surface of each ofthree metal lids and place them in the water bath.6.2 Flame three other metal lids in an open gas flame untileach entire lid has an oxidized blue-gray surface and placethem in the water bath after they have cooled to roomtemperature.6
11、.3 After 5 min,place a flamed lid on top of each cement-covered lid,and press only on the rim of the flamed lid for 1min or until the flow of the cement stops.NOTE1Covers that have a raised rim 1 mm on the top surface areintended for this test.When the two lids are pressed together,approxi-mately 4
12、g of the 5-g sample will be contained between the surfaces.If lidswith raised rims are not available,smooth lids may be used except thatcare should be exercised in pressing the lids together to prevent squeezingout all of the sample.6.4 Remove each set of lids from the water bath and scrapeoff the e
13、xcess cement around the edges with a spatula or knife.1This test method is under the jurisdiction ofASTM Committee D08 on Roofingand Waterproofing and is the direct responsibility of Subcommittee D08.05 onSolvent-Bearing Bituminous Compounds for Roofing and Waterproofing.Current edition approved Jan
14、.1,2016.Published January 2016.Originallyapproved in 1975.Last previous edition approved in 2008 as D3409 93(2008).DOI:10.1520/D3409_D3409M-93R16E01.2Deep Style 22 Seamless Cans,available from Ellisco Inc.,Myers Div.,6850River Rd.,Pennsauken,NJ 08110,have been found satisfactory for this purpose.Cop
15、yright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 6.5 Separate the lids without twisting and estimate thepercentage of area covered by the cement on each of the flamedlids.7.Report7.1 Report the average of the three estimates on coverage ofthe
16、 cement on the flamed lids as the adhesion,in percent,at20C 68F.NOTE2There may be a need for testing at lower temperatures.Committee D08 would welcome data supporting suitable modifications.8.Precision8.1 The precision of this test method has not yet beendetermined.9.Keywords9.1 adhesion;asphalt cement;wet surfaceASTM 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 adv
