1、Designation: D6152/D6152M 99 (Reapproved 2011)1 D6152/D6152M 12Standard 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
2、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 NOTEUnits information was editorially corrected in June 2011.1. Scope1.1 This specification covers
3、 SEBS (styrene-ethylene-butylene-styrene)-modified asphalt intended for use in built-up roofconstruction, construction of some modified bitumen systems, construction of bituminous vapor retarder systems, and for adheringinsulation boards used in various types of roof systems.1.2 This specification i
4、s intended as a material specification. Issues regarding the suitability of specific roof constructions orapplication techniques are beyond its scope.1.3 The specified tests and property values used to characterize SEBS-modified asphalt are intended to establish minimumproperties. In place system de
5、sign criteria or performance attributes are factors beyond the scope of this specification.1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in eachsystem may not be exact equivalents; therefore, each system shall be used indepe
6、ndently of the other. Combining values from thetwo systems may result in non-conformance with the standard.1.5 This standard does not purport to address the safety concerns, if any, associated with its use. It is the responsibility of theuser of this standard to establish appropriate safety and heal
7、th practices and determine the applicability of regulatory limitationsprior to use.2. Referenced Documents2.1 ASTM Standards:2D5 Test Method for Penetration of Bituminous MaterialsD36 Test Method for Softening Point of Bitumen (Ring-and-Ball Apparatus)D92 Test Method for Flash and Fire Points by Cle
8、veland Open Cup TesterD140 Practice for Sampling Bituminous MaterialsD312 Specification for Asphalt Used in RoofingD412 Test Methods for Vulcanized Rubber and Thermoplastic ElastomersTensionD1079 Terminology Relating to Roofing and WaterproofingD2042 Test Method for Solubility of Asphalt Materials i
9、n TrichloroethyleneD3111 Test Method for Flexibility Determination of Hot-Melt Adhesives by Mandrel Bend Test Method3. Terminology3.1 DefinitionsFor definitions of general terms used in this specification, refer to Terminology D1079.3.2 Definitions of Terms Specific to This Standard:3.2.1 elastic re
10、covery, nthe degree to which a material returns to its normal dimensions after being distorted.3.2.2 low temperature flexibility, nthe ability of a material to bend at a prescribed rate around a mandrel of a prescribeddiameter at a prescribed low temperature without cracking or breaking.1 This speci
11、fication is under the jurisdiction of ASTM Committee D08 on Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.03 on Surfacingand Bituminous Materials for Membrane Waterproofing and Built-up Roofing.Current edition approved June 1, 2011Dec. 1, 2012. Published June 2011 Ja
12、nuary 2013. Originally approved in 1997. Last previous edition approved in 20052011 asD6152 99 (2005).(2011)1. DOI: 10.1520/D6152_D6152M-99R11E01.10.1520/D6152_D6152M-12.2 For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at serviceastm.org. For An
13、nual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not b
14、e technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Driv
15、e, PO Box C700, West Conshohocken, PA 19428-2959. United States14. Materials and Manufacture4.1 The base asphalt shall be prepared from crude petroleum.4.2 The SEBS-modified asphalt shall incorporate sufficient SEBS as the primary polymeric modifier to meet the requirementsof this specification.5. P
16、hysical Requirements5.1 The SEBS modified asphalt shall be homogeneous and free of water.5.2 The SEBS modified asphalt shall conform to the physical properties prescribed in Table 1.6. Sampling6.1 Sample the material as prescribed in Practice D140.6.2 If the material is shipped in hot filled cardboa
17、rd or plastic kegs, obtain samples from the kegs in accordance with thefollowing 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 or a hot knife, cut two vertical wedges approximately 50 mm 2 in. wide and 50 mm 2 in
18、. deep alongthe entire length of the material block. Cut the wedges into 100-mm 4-in. lengths.6.2.3 Place the wedges in a can with a capacity of 3.8 L 1 gal. Loosely cover the can and heat in a convection oven at 2106 5C 410 6 9F for a period of 212 6 12 h. Stir the sample thoroughly to ensure homog
19、eneity.7. Test Methods7.1 Determine compliance with the requirements of this specification in accordance with the following methods:7.1.1 Softening PointTest Method D36.7.1.2 Flash PointTest Method D92.7.1.3 PenetrationTest Method D5.7.1.4 SolubilityTest Method D2042.7.1.5 Tensile ElongationTest Met
20、hod 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, and low temperature flexibility shall be cut from a molded or hot pouredplaque 2.00 6 0.15 mm 0.079 6 0.006 in. thick.7.2.1 The following simple
21、 procedure may be used for preparing a hot poured plaque. Heat the asphalt to 210 6 5C 410 69F in a convection oven. While heating, place two metal strips of the thickness stated above along the sides of a piece of releasepaper. Pour the heated SEBS-modified asphalt onto the release paper, immediate
22、ly cover with another piece of release paper, thenroll out with a rolling pin, piece of pipe, and so forth, using the metal strips as guides to maintain proper specimen thickness.7.3 Determine tensile elongation as prescribed by Test Method D412 using die C. The test shall be made at 23.0 6 2.0C 73.
23、46 3.6F and with a speed of 500 6 25 mm/min 20 6 1 in./min.7.4 Determine low temperature flexibility as prescribed by Test Method D3111 using a 25 6 1-mm 1.00 6 0.04-in. diametermandrel. The specimens shall be 2.00 6 0.15 mm 0.079 6 0.006 in. thick.TABLE 1 Physical Requirements of SEBS-Modified Asph
24、alt Usedin RoofingAProperty Min MaxSoftening point, C F 85 185 116 240Softening point, C F 85 185 135 275before and after heat exposureSoftening 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 chan
25、ge, units at 25C 77F 5 12after heat exposureSolubility in trichloroethylene, % 99 . . .Tensile elongation, %, at 25C 77F 750 . . .Elastic recovery, % 80 . . .Low temperature flexibility, pass at C F . . . 7 20A The properties in this table are “as manufactured” unless otherwise noted.D6152/D6152M 12
26、27.5 Determine elastic recovery using the tensile set procedure as prescribed by Test Method D412 using die C. The test shallbe made at 23.0 6 2.0C 73.4 6 3.6F and with a speed of 500 6 25 mm/min 20 6 1 in./min. Elongate the specimen 300 %,then immediately release the lower jaw to allow recovery. Re
27、cord elastic recovery as follows:Recovery, %51004L2X!/3L (1)where:L = initial length between benchmarks, andX = length between benchmarks after recovery.7.6 Determine high temperature stability by conditioning the specimen as prescribed in Section 8. Determine the softening pointof the specimen as p
28、rescribed by Test Method D36. The softening point of the specimen shall not change by more than 10C.Determine the penetration of the specimen as prescribed by Test Method D5. The penetration of the specimen shall not change bymore than 12 units. The softening point and penetration of the SEBS-modifi
29、ed asphalt shall remain within the specification limitsafter conditioning.8. Stability During Heat Exposure8.1 Scope:8.1.1 The stability of SEBS-modified asphalt is evaluated by the retention of softening point and penetration after heat exposure.The heat exposure shall be conducted for 8 h at 260 6
30、 5C 500 6 9F.8.1.2 This procedure may require heating asphalt to a temperature in excess of its flash point. Take care to provide adequateventilation and to avoid ignition sources.8.2 Apparatus:8.2.1 CanUse a lidded can with a capacity of 0.95 L 1 qt and capable of withstanding a temperature of 300C
31、 572F. Thecan shall not be coated or lined with a material that will react with asphalt at 300C 572F.8.3 Procedure:8.3.1 In a convection oven heat the SEBS-modified asphalt to 210 6 10C 410 6 18F and pour 500 6 50 g into a 0.95 L1 qt can. Place the lid loosely on the can.8.3.2 Immediately place the
32、can in a convection oven preheated to 260 6 5C 500 6 9F. Maintain the convection oven atthis temperature for 8 h 6 5 min.8.3.3 Cool the SEBS-modified asphalt to a temperature suitable for pouring softening point and penetration test specimens.8.3.4 Stir the SEBS-modified asphalt before pouring to en
33、sure homogeneity.9. Inspection9.1 Inspection of the material shall be agreed upon between the purchaser and the supplier as part of the purchase contract.10. Rejection and Resubmittal10.1 Failure to conform to any of the requirements prescribed in the specification shall constitute grounds for rejec
34、tion. In caseof rejection, the seller shall have the right to reinspect the rejected material and resubmit the lot after removal of those packagesnot conforming to the requirements.11. Packaging and Package Marking11.1 The SEBS-modified asphalt shall be packaged suitably, if not shipped in bulk, to
35、permit acceptance by the carrier and toafford adequate protection from the normal hazards of handling and shipping.11.2 Each container (or bill of lading if shipped in bulk) shall be marked plainly with the name of the manufacturer or seller,the ASTM designation and type of product, the flash point,
36、 and the manufacturers recommended application temperature for mopand mechanical spreader application.D6152/D6152M 12312. Keywords12.1 asphalt; built-up roof construction; modified bitumen roof construction; mopping asphalt; SEBSASTM International takes no position respecting the validity of any pat
37、ent 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 revision
38、 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 comm
39、ents 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 copyrighte
40、d 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 ASTM website (www.astm.org/COPYRIGHT/).D6152/D6152M 124
