1、Designation:D768212Standard 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
2、 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 profileu
3、sing 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 dept
4、h 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 ofnine different visual comparators called Concrete SurfaceProfiles(CSP).This standard complim
5、ents the use of thesevisual comparators.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 o
6、f 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:2E177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE691 Practice for Conducting an Interlabora
7、tory 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 pro
8、vides 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 su
9、rface and replicatesurface profile.3.1.4 visual comparator,nan ICRI molded replica of aconcrete surface profile that allows visual comparison to anactual concrete surface.4.Summary of Test Method4.1 Method AReplica putty is used to obtain a replicacoupon of a concrete surface that has been abraded o
10、rroughened.The replica coupon is visually compared to the nineICRI Visual Comparators(CSP),or to a specific job standard.4.2 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 micr
11、ometer 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
12、then be compared tovisual profile standards,or evaluated quantitatively for profiledepth.The permanent replica may also prove useful in resolv-ing future disputes.1This test method is under the jurisdiction of ASTM Committee D01 on Paintand Related Coatings,Materials,and Applications and is the dire
13、ct responsibility ofSubcommittee D01.46 on Industrial Protective Coatings.Current edition approved Nov.1,2012.Published November 2012.Originallyapproved in 2010.Last previous edition approved in 2010 as D7682 10.DOI:10.1520/D768212.2For referenced ASTM standards,visit the ASTM website,www.astm.org,o
14、rcontact 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),3166 S.RiverRoad,Suite 132,Des Plaines,IL 60018,http/www.icri.org.Copyri
15、ght ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 6.Apparatus6.1 A set of nine ICRI CSP Comparators.46.2 Replica putty and plastic profiler.6.3 A specially designed non-spring loaded micrometer5with a bottom anvil of at least 38 mm(1.5 in.)diamet
16、er.Theupper contact point is machined flat to a diameter that will notindent the coupon.7.Calibration and Standardization7.1 Zero the micrometer prior to each measurement sessionin accordance with the manufacturers instructions.7.2 Micrometer accuracy should be checked by measuring ashim of known thickness and confirming results are within thecombined tolerances of both the micrometer and the shim.8.Procedure8.1 Method A:8.1.1 Select a sufficient number of locations to characterizethe surface,as
