1、Designation:D4074/D4074M11(Reapproved 2022)Standard Test Method forBitumen and Aggregate Content of Bitumen-AggregateMixtures From Roofing Samples1This standard is issued under the fixed designation D4074/D4074M;the number immediately following the designation indicates theyear of original adoption
2、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 covers the determination of the bitu-men content of adhered aggrega
3、te surfacing on a roof,and theapproximate mass per unit area of the flood coat and adheredaggregate.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 in
4、dependently of the other.Combiningvalues from the two systems may result in nonconformancewith 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,hea
5、lth,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of Internat
6、ional Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D71 Test Method for Relative Density of Solid Pitch andAsphalt(Displacement Method)D2829/D2829M Practice for Sampling and Analysis of
7、Ex-isting Built-Up Roof Systems3.Summary of Test Method3.1 The proportions of bitumen and aggregate in a mixtureare determined from their relative densities and the relativedensity of their mixture.4.Significance and Use4.1 This test method offers a convenient alternative tosolvent extraction for th
8、e approximate determination of top-coating bitumen and adhered aggregate in roofing samples,particularly when the bitumen is coal-tar pitch.5.Apparatus5.1 Beaker,500 mL minimum capacity,without a pourspout.35.2 Glass Cover Plate,127 by 127 by 3 mm 5 by 5 by0.12 in.5.3 Balance,1000 6 0.1 g capacity.6
9、.Materials6.1 Isopropyl Alcohol,(CH3)2CHOH,commercial grade.6.2 Paper Cups,paraffin-coated,61 mm 2.4 in.in diam-eter by 76 in.3 mm high,150 mL 5 oz capacity.7.Sampling7.1 Obtain samples in the field in accordance with PracticeD2829/D2829M.8.Procedure8.1 Cut a 100-mm 558-in.square specimen from thero
10、ofing sample and collect any associated loose,bitumen-freeaggregate in a tared paper cup.8.2 Add additional loose,bitumen-free aggregate to the cupfrom the remaining sample,if necessary,to obtain a 100 to1This test method is under the jurisdiction ofASTM Committee D08 on Roofingand Waterproofing and
11、 is the direct responsibility of Subcommittee D08.20 onRoofing Membrane Systems.Current edition approved May 1,2022.Published May 2022.Originallyapproved in 1985.Last previous edition approved in 2015 as D4074/D4074M 11(2015).DOI:10.1520/D4074_D4074M-11R22.2For referenced ASTM standards,visit the AS
12、TM 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.3The sole source of supply of the beaker,Kimble Chase,part#14020-600 Kimax600 mLwithout spout,known to the co
13、mmittee at this time is Fisher Scientific,1022Spruce St.,P.O.Box 1502,Vineland,NJ 08362-1502.If you are aware of alternativesuppliers,please provide this information to ASTM International Headquarters.Your comments will receive careful consideration at a meeting of the responsibletechnical committee
14、,1which you may attend.Copyright ASTM International,100 Barr Harbor Drive,PO 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 theDe
15、velopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1200-g specimen of the aggregate.Weigh the aggregate to thenearest 0.1 g and record as Ma.8.3 Place the roofing specimen on aluminum foil or releasepaper a
16、nd carefully remove the adhered aggregate and topcoating with a hot knife or scraper without damaging the topfelt.NOTE1This will usually leave 200 to 400 g/m24 to 8 lb/100 ft2 ofbitumen on the surface of the roofing felt.8.4 Collect the adhered aggregate and top coating removedin 8.3 in a tared paper cup and add any associated loose,bitumen-coated aggregate.Weigh to the nearest 0.1 g andrecord as Mm.8.5 Overfill the clean 500-mL beaker with isopropyl alcoholand carefully slide the glass cover pl
