1、Designation: D7682 17Standard 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
2、 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 surfac
3、e profileusing replica putty and to determine the depth of that surfaceprofile.NOTE 1The 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 etchi
4、ng. 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
5、 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 therespons
6、ibility 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:2E177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE691 Practice for Con
7、ducting 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 pr
8、ofiler, 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 us
9、ed 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 T
10、est Method4.1 The methods are:4.1.1 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 o
11、btain 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 Use5.1 For proper bonding of overlays and coatings, it isimportant t
12、hat 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 to1This test method is under the jurisdiction of ASTM Committee D01 on Paintand Related Coatings, Materials, and Applications and is th
13、e direct responsibility ofSubcommittee D01.46 on Industrial Protective Coatings.Current edition approved Feb. 1, 2017. Published March 2017. Originallyapproved in 2010. Last previous edition approved in 2012 as D7682 12. DOI:10.1520/D7682-17.2For referenced ASTM standards, visit the ASTM website, ww
14、w.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
15、/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 theDevelo
16、pment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.1visual profile standards, or evaluated quantitatively for profiledepth. The permanent replica may also prove useful in resolv-ing future disputes.6. Appara
17、tus6.1 A set of ten 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.) diameter. Theupper contact point is machined flat to a diameter that will notindent the coupon.7. Calibration and Sta
18、ndardization7.1 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. Proce
19、dure8.1 Method A:8.1.1 Select a sufficient number of locations to characterizethe surface, as specified or agreed upon between the interestedparties.8.1.2 At each location clean the surface with a brush toremove loose material.8.1.3 Prepare the replica putty in accordance with themanufacturers instr
20、uctions.8.1.4 Place the mixed replica putty into a plastic profiler,mounding the putty in the middle.8.1.5 Place the plastic profiler onto the concrete, putty sidedown. Step on or push the plastic profiler until the shoulderstouch the concrete surface (see Fig. 1). Do not remove theplastic profiler.
21、8.1.6 After sufficient time to cure in accordance with themanufacturers instructions twist the plastic profiler and re-move it from the hardened putty (replica coupon).8.1.7 Peel the replica coupon from the concrete surface andnumber the back (smooth) side for future reference.8.1.8 Visually compare
22、 the replica coupon to the ICRI CSPvisual comparators, and determine which comparator is visu-ally closest to the surface appearance of the replica coupon.8.2 Method B:8.2.1 Follow steps 8.1.1 8.1.7 of Method A.8.2.2 On each replica coupon take at least ten micrometermeasurements in different locati
23、ons ensuring some measure-ments are taken in the bottoms of the valleys and somemeasurements are taken on the tops of the peaks (see Fig. 2).8.2.3 Subtract the lowest thickness measurement from thehighest thickness measurement to determine the profile rangefor each replica coupon.4The sole source of
24、 supply of the comparators, as well as Guideline 03732known to the committee at this time is the International Concrete Repair Institute,1000 Westgate Drive, Suite 252, St. Paul, MN 55114. If you are aware of alternativesuppliers, please provide this information to ASTM International Headquarters.Yo
25、ur comments will receive careful consideration at a meeting of the responsibletechnical committee,1which you may attend.5The sole source of supply of the micrometer known to the committee at thistime is O.T.B Technologies LLC, 422 North 880 East, Tooele, UT 84074. If you areaware of alternative supp
26、liers, please provide this information to ASTM Interna-tional Headquarters. Your comments will receive careful consideration at a meetingof the responsible technical committee,1which you may attend.FIG. 1 Plastic Profiler with Replica Putty on ConcreteFIG. 2 Micrometer Measuring a Replica CouponD768
27、2 1729. Report9.1 At a minimum, the report should contain the followingitems:9.1.1 Date, test location, and replica coupon label numbers.9.1.2 Test Method used (A, B, or both).9.1.2.1 For Method A, record the number of the closestmatching ICRI CSP visual comparator.9.1.2.2 For Method B, record the d
28、ifference between thelowest and highest peak-to-valley measurements on eachreplica coupon.10. Precision and Bias610.1 The precision of this test method is based on aninterlaboratory study of ASTM D7682, Standard Test Methodfor Replication and Measurement of Concrete Surface ProfilesUsing Replica Put
29、ty, Method B, conducted in 2012. Sixlaboratories participated in the study, testing four differentsurface preparations. Every analyst reported triplicate testresults for each of the surface preps in this study. Practice E691was followed for the study design; the details are given inASTM Research Rep
30、ort No. RR:D01-1165.10.1.1 Repeatability Limit (r)Two test results obtainedwithin one laboratory shall be judged not equivalent if theydiffer by more than the “r” value for that material; “r”istheinterval representing the critical difference between two testresults for the same material, obtained by
31、 the same operatorusing the same equipment on the same day in the samelaboratory.10.1.1.1 Repeatability limits are listed in Table 1 and Table2.10.1.2 Reproducibility Limit (R)Two test results shall bejudged not equivalent if they differ by more than the “R” valuefor that material; “R” is the interv
32、al representing the criticaldifference between two test results for the same material,obtained by different operators using different equipment indifferent laboratories.10.1.2.1 Reproducibility limits are listed in Table 1 andTable 2.10.1.3 The above terms (repeatability limit and reproduc-ibility l
33、imit) are used as specified in Practice E177.10.1.4 Any judgment in accordance with statements 10.1.1and 10.1.2 would normally have an approximate 95 % prob-ability of being correct.10.2 BiasAt the time of the study, there was no acceptedreference material suitable for determining the bias for this
34、testmethod, therefore no statement on bias is being made.10.3 The precision statement was determined through sta-tistical examination of 72 results, from a total of sixlaboratories, on four surface preparations.11. Keywords11.1 comparator; concrete; concrete profiler; micrometer;peak height; replica
35、 coupon; replica putty; surface profile;surface profiler; surface roughness6Supporting data have been filed at ASTM International Headquarters and maybe obtained by requesting Research Report RR:D01-1165. ContactASTM CustomerService at serviceastm.org.TABLE 1 Difference (mm)MaterialAverageAXRepeatab
36、ilityStandardDeviationsrReproducibilityStandardDeviationSRRepeatabilityLimitrReproducibilityLimitRDiamond ground surface 0.4556 0.1303 0.1802 0.3648 0.5047Light shot blast surface 0.8256 0.1341 0.2515 0.3755 0.7041Medium shot blast surface 1.6561 0.3326 0.3600 0.9313 1.0079Medium scarification surfa
37、ce 3.4133 0.3782 0.4543 1.0590 1.2719AThe average of the laboratories calculated averages.TABLE 2 Difference (mil)MaterialAverageAXRepeatabilityStandardDeviationsrReproducibilityStandardDeviationSRRepeatabilityLimitrReproducibilityLimitRDiamond ground surface 17.9353 5.1290 7.0961 14.3613 19.8690Lig
38、ht shot blast surface 32.5022 5.2804 9.8999 17.7852 27.7198Medium shot blast surface 65.2012 13.0945 14.1717 36.6645 39.6808Medium scarification surface 134.3832 14.8908 17.8843 41.6943 50.0760AThe average of the laboratories calculated averages.D7682 173ASTM International takes no position respecti
39、ng the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This stand
40、ard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM Internation
41、al Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.T
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