ASTM_D_5100_-_D_5100M_-_95a_2010e1.pdf

Designation:D5100/D5100M95a(Reapproved 2010)1Standard Test Method forAdhesion of Mineral Aggregate to Hot Bitumen1This standard is issued under the fixed designation D5100/D5100M;the number immediately following the designation indicates theyear of original adoption 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.1NOTEUnits information was corrected editorially in July 2010.1.Scope1.1 This test method determines the adhesion of mineralaggregate when applied over a pour coat of hot bitumen on aroof membrane.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 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 practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D226 Specification for Asphalt-Saturated Organic Felt Usedin Roofing and WaterproofingD312 Specification for Asphalt Used in RoofingD450 Specification for Coal-Tar Pitch Used in Roofing,Dampproofing,and WaterproofingD1079 Terminology Relating to Roofing and Waterproofing3.Terminology3.1 DefinitionsFor definitions of terms used in this testmethod,see Terminology D1079.4.Summary of Test Method4.1 Asmall section of roof surface is fabricated with roofingfelt or membrane using measured amounts of a bituminouspour coat and mineral aggregate surfacing.The assembly isallowed to cool,the loose aggregate is removed and weighed,and the mass of adhered aggregate is calculated and reported.5.Significance and Use5.1 The quantities of mineral aggregate adhered to thesurface of a roof vary with the characteristics and total amountof the aggregate.Mineral aggregate shields bituminous mem-branes from solar radiation.Unadhered mineral aggregate canbe displaced by wind,water,and traffic,exposing the bitumen.5.2 This test method provides a laboratory means of deter-mining and recording the mass of aggregate that adheres to abituminous pour coat.6.Apparatus6.1 Steel Tray,measuring 143 mm 558in.6 1%square by13 mm 0.5 in.6 10%in height.6.2 Scales,for weighing bitumen and mineral aggregate,balance 1.00-kg 2.2-lb capacity,sensitive to 0.01%of thecapacity.6.3 Containers,for hot bitumen and mineral aggregate(1-L1-qt capacity).7.Procedure7.1 Cut a piece of saturated felt to just cover the bottom ofthe steel tray;the saturated felt shall be Type 1 complying withSpecification D226.7.2 Attach the saturated felt to the inside of the tray with athin film of a release agent such as silicone stopcock grease orpetroleum jelly.Lightly grease the insides of the sides of thetray with the same material.7.3 Weigh out 400 g 0.88 lb of gravel,chert,or trap rock,or 300 g 0.66 lb of slag mineral aggregate surfacing 61%.Record this mass as A.This is equivalent to 19.5 kg/m2400lb/100 ft2 and 14.6 kg/m2300 lb/100 ft2,respectively.7.4 Apply top pour coat of bitumen uniformly according toquantities and temperatures listed in Table 1.7.5 Immediately apply mineral aggregate into hot bitumenand spread uniformly over entire surface within the tray.Allowthe assembly to cool for 30 min minimum.1This test method is under the jurisdiction ofASTM Committee D08 on Roofingand Waterproofing and is the direct responsibility of Subcommittee D08.03 onSurfacing and Bituminous Materials for Membrane Waterproofing and Built-upRoofing.Current edition approved July 1,2010.Published July 2010.Originally approvedin 1990.Last previous edition approved in 2005 as D5100 95a(2005).DOI:10.1520/D5100_D5100M-95AR10E01.2For 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 Box C700,West Conshohocken,PA 19428-2959.United States1 7.6 Turn sample upside down and collect loose aggregate.Weigh the loose aggregate and record this mass as B.7.7 Repeat the procedure three more times,recording eachindividual mass determination.8.Calculation8.1 Calculate the mass of the adhered aggregate for each testas:C 5 A 2 B(1)where:C=mass of the adhered aggregate in pounds per square foot(4.88(A B)gives the mass of the adhered aggregate inkg/m2).8.2 Calculate the mean mass of the adhered aggregate Cmbydividing the sum of the four determinations by four.8.3 Calculate an estimate of the standard deviation s by:s 54(C22(C!212(2)8.4 Calculate the standard error of the mean S by:S 5s2(3)9.Report9.1 Report