1、Designation:D1187/D1187M97(Reapproved 2018)Standard Specification forAsphalt-Base Emulsions for Use as Protective Coatings forMetal1This standard is issued under the fixed designation D1187/D1187M;the number immediately following the designation indicates theyear of original adoption or,in the case
2、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 specification covers emulsified asphalt suitable forapplication in a relatively thick film as
3、a protective coating formetal surfaces.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
4、 may result in non-conformancewith the standard.1.3 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 th
5、e World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2C150/C150M Specification for Portland CementD2939 Test Methods for Emulsified Bitumens Used asProtective Coatings(Withdrawn 2012)33.Classification3.1 Type IQuick-setting emulsified asphalt s
6、uitable forcontinuous exposure to water within a few days after applica-tion and drying.3.2 Type IIEmulsified asphalt suitable for continuousexposure to the weather,only after application and drying.4.Materials and Manufacture4.1 Emulsified asphalt used as a protective coating for metalshall consist
7、 of asphalt,water,and emulsifying agents.5.Composition5.1 Emulsified asphalt complying with this specificationshall conform to the requirements in Table 1.6.Performance Requirements6.1 UniformityThe emulsion shall be homogeneous.Aftera thoroughly stirred sample has been held at 10C 50F in aclosed co
8、ntainer for 48 h,there shall be no separation of water,coagulation of the asphalt base,settling,or packing in thecontainer that cannot be overcome by moderate hand stirring.6.2 ConsistencyThe emulsion shall be of a consistencythat will spread readily and permit application by brush,mop,or trowel at
9、the rate of 1.0 L/m22.5 gal U.S./100 ft2 tovertical metal surfaces at ambient temperatures above 10C50F.See Section 17 of Test Methods D2939.6.3 StabilityThere shall be no coagulation during thecement addition or at the conclusion of the 1-min mixingperiod.6.4 The emulsion shall conform to the addit
10、ional require-ments prescribed in Table 2.7.Sampling and Test Methods7.1 Sample the material,and determine the properties enu-merated in this specification in accordance with Test MethodsD2939,except for stability and flexibility.7.2 Stability:7.2.1 MaterialHigh-early-strength portland cement con-fo
11、rming to the requirements for Type III of SpecificationC150/C150M,and having a minimum specific surface area of1900 cm2/g 133 556 in.2/lb.7.2.2 Procedure:7.2.2.1 Place about 200 g of emulsion in a tared 500-mLround-bottom porcelain dish,and weigh.7.2.2.2 Add 25 mass%portland cement based on theweigh
12、t of the emulsion,in small portions while stirringconstantly with a stiff spatula.1This specification is under the jurisdiction of ASTM Committee D08 onRoofing and Waterproofing and is under the direct responsibility of SubcommitteeD08.09 on Bituminous Emulsions.Current edition approved July 1,2018.
13、Published July 2018.Originally publishedin 1956.Last previous edition approved in 2011 as D1187/D1187M 97(2011)1.DOI:10.1520/D1187_D1187M-97R18.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volum
14、e information,refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard wa
15、s developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 7.2.2.3 Add sm
16、all amounts of distilled water if the mixturebecomes too stiff to be workable.7.2.2.4 After addition of all the cement,stir the mixturethoroughly for 1 min.7.2.2.5 Watch for any sign of coagulation of the asphalt baseduring addition of the portland cement and after the 1-minstirring period.7.3 Flexibility:7.3.1 Use the same test panel that was subjected to the heattest.After cooling for 1 h at 25 6 2C 77 6 4F,bend thepanel over a 12.7-mm 12-in.diameter mandrel through 180in 2 s or less,with the
