1、Designation: D6152/D6152M 12 (Reapproved 2018)Standard Specification forSEBS-Modified Mopping Asphalt Used in Roofing1This standard is issued under the fixed designation D6152/D6152M; the number immediately following the designation indicates theyear of original adoption or, in the case of revision,
2、 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 specification covers SEBS (styrene-ethylene-butylene-styrene)-modified asphalt intended for use in b
3、uilt-uproof construction, construction of some modified bitumensystems, construction of bituminous vapor retarder systems,and for adhering insulation boards used in various types of roofsystems.1.2 This specification is intended as a material specification.Issues regarding the suitability of specifi
4、c roof constructions orapplication techniques are beyond its scope.1.3 The specified tests and property values used to charac-terize SEBS-modified asphalt are intended to establish mini-mum properties. In place system design criteria or performanceattributes are factors beyond the scope of this spec
5、ification.1.4 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 of the other. Combiningvalues from the two systems may result in non-confor
6、mancewith the standard.1.5 This standard does not purport to address the safetyconcerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety,health, and environmental practices and determine the appli-cability of regulatory limitation
7、s prior to use.1.6 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization Techn
8、icalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2D5/D5M Test Method for Penetration of Bituminous Mate-rialsD36/D36M Test Method for Softening Point of Bitumen(Ring-and-Ball Apparatus)D92 Test Method for Flash and Fire Points by ClevelandOpen Cup TesterD140/D140M Prac
9、tice for Sampling Asphalt MaterialsD312/D312M Specification for Asphalt Used in RoofingD412 Test Methods for Vulcanized Rubber and Thermoplas-tic ElastomersTensionD1079 Terminology Relating to Roofing and WaterproofingD2042 Test Method for Solubility of Asphalt Materials inTrichloroethyleneD3111 Tes
10、t Method for Flexibility Determination of Hot-Melt Adhesives by Mandrel Bend Test Method3. Terminology3.1 DefinitionsFor definitions of general terms used in thisspecification, refer to Terminology D1079.3.2 Definitions of Terms Specific to This Standard:3.2.1 elastic recovery, nthe degree to which
11、a materialreturns to its normal dimensions after being distorted.3.2.2 low temperature flexibility, nthe ability of a materialto bend at a prescribed rate around a mandrel of a prescribeddiameter at a prescribed low temperature without cracking orbreaking.4. Materials and Manufacture4.1 The base asp
12、halt shall be prepared from crude petro-leum.4.2 The SEBS-modified asphalt shall incorporate sufficientSEBS as the primary polymeric modifier to meet the require-ments of this specification.1This specification is under the jurisdiction of ASTM Committee D08 onRoofing and Waterproofing and is the dir
13、ect responsibility of Subcommittee D08.03on Surfacing and Bituminous Materials for Membrane Waterproofing and Built-upRoofing.Current edition approved Aug. 1, 2018. Published August 2018. Originallyapproved in 1997. Last previous edition approved in 2012 as D6152/D6152M 12.DOI: 10.1520/D6152_D6152M-
14、12R18.2For referenced ASTM standards, 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.Copyright ASTM International, 100 Barr Harbor Drive, PO
15、 Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued b
16、y the World Trade Organization Technical Barriers to Trade (TBT) Committee.15. Physical Requirements5.1 The SEBS modified asphalt shall be homogeneous andfree of water.5.2 The SEBS modified asphalt shall conform to the physi-cal properties prescribed in Table 1.6. Sampling6.1 Sample the material as
17、prescribed in Practice D140/D140M.6.2 If the material is shipped in hot filled cardboard orplastic kegs, obtain samples from the kegs in accordance withthe following procedure:6.2.1 Remove the container from the block of SEBS-modified asphalt, cutting away the liner if present.6.2.2 Using a hatchet
18、or a hot knife, cut two vertical wedgesapproximately 50 mm 2 in. wide and 50 mm 2 in. deepalong the entire length of the material block. Cut the wedgesinto 100-mm 4-in. lengths.6.2.3 Place the wedges in a can with a capacity of 3.8 L 1gal. Loosely cover the can and heat in a convection oven at210 6
19、5C 410 6 9F for a period of 212 612 h. Stir thesample thoroughly to ensure homogeneity.7. Test Methods7.1 Determine compliance with the requirements of thisspecification in accordance with the following methods:7.1.1 Softening PointTest Method D36/D36M.7.1.2 Flash PointTest Method D92.7.1.3 Penetrat
20、ionTest Method D5/D5M.7.1.4 SolubilityTest Method D2042.7.1.5 Tensile ElongationTest Method D412.7.1.6 Low Temperature Flexibility Test Method D3111.7.1.7 Elastic RecoveryTest Method D412.7.2 Specimens for tensile elongation, elastic recovery, andlow temperature flexibility shall be cut from a molde
21、d or hotpoured plaque 2.00 6 0.15 mm 0.079 6 0.006 in. thick.7.2.1 The following simple procedure may be used forpreparing a hot poured plaque. Heat the asphalt to 210 6 5C410 6 9F in a convection oven. While heating, place twometal strips of the thickness stated above along the sides of apiece of r
22、elease paper. Pour the heated SEBS-modified asphaltonto the release paper, immediately cover with another piece ofrelease paper, then roll out with a rolling pin, piece of pipe, andso forth, using the metal strips as guides to maintain properspecimen thickness.7.3 Determine tensile elongation as pre
23、scribed by TestMethod D412 using die C. The test shall be made at 23.0 62.0C 73.4 6 3.6F and with a speed of 500 6 25 mm/min20 6 1 in./min.7.4 Determine low temperature flexibility as prescribed byTest Method D3111 using a 25 6 1-mm 1.00 6 0.04-in.diameter mandrel. The specimens shall be 2.00 6 0.15
24、 mm0.079 6 0.006 in. thick.7.5 Determine elastic recovery using the tensile set proce-dure as prescribed by Test Method D412 using die C. The testshall be made at 23.0 6 2.0C 73.4 6 3.6F and with a speedof 500 6 25 mm/min 20 6 1 in./min. Elongate the specimen300 %, then immediately release the lower
25、 jaw to allowrecovery. Record elastic recovery as follows:Recovery, % 5 1004L 2 X!/3L (1)where:L = initial length between benchmarks, andX = length between benchmarks after recovery.7.6 Determine high temperature stability by conditioningthe specimen as prescribed in Section 8. Determine thesoftenin
26、g point of the specimen as prescribed by Test MethodD36/D36M. The softening point of the specimen shall notchange by more than 10C. Determine the penetration of thespecimen as prescribed by Test Method D5/D5M. The penetra-tion of the specimen shall not change by more than 12 units.The softening poin
27、t and penetration of the SEBS-modifiedasphalt shall remain within the specification limits after con-ditioning.8. Stability During Heat Exposure8.1 Scope:8.1.1 The stability of SEBS-modified asphalt is evaluatedby the retention of softening point and penetration after heatexposure. The heat exposure
28、 shall be conducted for8hat2606 5C 500 6 9F.8.1.2 This procedure may require heating asphalt to atemperature in excess of its flash point. Take care to provideadequate ventilation and to avoid ignition sources.8.2 Apparatus:8.2.1 CanUse a lidded can with a capacity of 0.95 L 1 qtand capable of withs
29、tanding a temperature of 300C 572F.The can shall not be coated or lined with a material that willreact with asphalt at 300C 572F.8.3 Procedure:8.3.1 In a convection oven heat the SEBS-modified asphaltto 210 6 10C 410 6 18F and pour 500 6 50 g into a 0.95L 1 qt can. Place the lid loosely on the can.8
30、.3.2 Immediately place the can in a convection ovenpreheated to 260 6 5C 500 6 9F. Maintain the convectionoven at this temperature for 8 h 6 5 min.TABLE 1 Physical Requirements of SEBS-Modified Asphalt Usedin RoofingAProperty Min MaxSoftening point, C F 85 185 135 275before and after heat exposureSo
31、ftening point change, C F 5 9 5 9after heat exposureFlash point, C F 260 500 . . .Penetration, units at 25C 77F 20 60before and after heat exposurePenetration change, units at 25C 77F 5 12after heat exposureSolubility in trichloroethylene, % 99 . . .Tensile elongation, %, at 25C 77F 750 . . .Elastic
32、 recovery, % 80 . . .Low temperature flexibility, pass at C F . . . 7 20AThe properties in this table are “as manufactured” unless otherwise noted.D6152/D6152M 12 (2018)28.3.3 Cool the SEBS-modified asphalt to a temperaturesuitable for pouring softening point and penetration test speci-mens.8.3.4 St
33、ir the SEBS-modified asphalt before pouring toensure homogeneity.9. Inspection9.1 Inspection of the material shall be agreed upon betweenthe purchaser and the supplier as part of the purchase contract.10. Rejection and Resubmittal10.1 Failure to conform to any of the requirements pre-scribed in the
34、specification shall constitute grounds for rejec-tion. In case of rejection, the seller shall have the right toreinspect the rejected material and resubmit the lot afterremoval of those packages not conforming to the requirements.11. Packaging and Package Marking11.1 The SEBS-modified asphalt shall
35、be packaged suitably,if not shipped in bulk, to permit acceptance by the carrier andto afford adequate protection from the normal hazards ofhandling and shipping.11.2 Each container (or bill of lading if shipped in bulk)shall be marked plainly with the name of the manufacturer orseller, the ASTM des
36、ignation and type of product, the flashpoint, and the manufacturers recommended application tem-perature for mop and mechanical spreader application.12. Keywords12.1 asphalt; built-up roof construction; modified bitumenroof construction; mopping asphalt; SEBSASTM International takes no position resp
37、ecting 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 validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This s
38、tandard 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 comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM Interna
39、tional 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 not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown bel
40、ow.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 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 (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 12 (2018)3
