ASTM_D_7682_-_17_2022.pdf

Designation:D768217(Reapproved 2022)Standard Test Method forReplication and Measurement of Concrete Surface ProfilesUsing Replica Putty1This standard is issued under the fixed designation D7682;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method is suitable for both field and laboratoryuse to obtain a permanent record of concrete surface profileusing replica putty and to determine the depth of that surfaceprofile.NOTE1The procedure in this standard was developed for concretesubstrates but may be appropriate for other rigid substrates.1.2 A profile can be imparted to concrete by variousmethods such as blast cleaning and acid etching.The depth ofthe surface profile has been shown to be a factor in coatingadhesion and performance.1.3 The International Concrete Repair Institute(ICRI)pro-vides a means of visually judging a concrete surface by use often different visual comparators called Concrete Surface Pro-files(CSP).This standard compliments the use of these visualcomparators.1.4 The values stated in SI units are to be regarded asstandard.The values given in parentheses are for informationonly.1.5 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,health,and environmental practices and deter-mine the applicability of regulatory limitations 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 TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2E177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method2.2 ICRI Document:Technical Guideline 310.2 Selecting and Specifying Con-crete Surface Preparation for Sealers,Coatings,and Poly-mer Overlays33.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 plastic profiler,na device that provides a controlledmeans for holding and confining replica putty for placementonto a concrete surface.3.1.2 replica coupon,nhardened replica putty containinga reverse image replica of a concrete surface.3.1.3 replica putty,na two-part,anti-stick,rapid harden-ing putty used to conform to a concrete surface and replicatesurface profile.3.1.4 surface profile,nthe height of the major peaksrelative to the major valleys.3.1.5 visual comparator,nan ICRI molded replica of aconcrete surface profile that allows visual comparison to anactual concrete surface.4.Summary of Test Method4.1 The methods are:1This test method is under the jurisdiction of ASTM Committee D01 on Paintand Related Coatings,Materials,and Applications and is the direct responsibility ofSubcommittee D01.46 on Industrial Protective Coatings.Current edition approved June 1,2022.Published July 2022.Originally approvedin 2010.Last previous edition approved in 2017 as D7682 17.DOI:10.1520/D7682-17R22.2For 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.3Available from International Concrete Repair Institute(ICRI),1000 WestgateDrive,Suite 252,St.Paul,MN 55114,http/www.icri.org.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 theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.14.1.1 Method AReplica putty is used to obtain a replicacoupon of a concrete surface that has been abraded orroughened.The replica coupon is visually compared to the tenICRI Visual Comparators(CSP),or to a specific job standard.4.1.2 Method BReplica putty is used to obtain a replicacoupon of a concrete surface that has been abraded orroughened.The replica coupon is then measured by a speciallydesigned micrometer to obtain a quantitative measurement ofsurface profile(depth).5.Significance and Use5.1For proper bonding of overlays and coatings,it isimportant that a concrete surface have the correct surfaceprofile.This test method allows one to obtain a permanentreplica of the concrete surface,which can then be compared tovisual profile standards,or evaluated quantitatively for profiledepth.T