1、Designation: D 7682 10Standard Test Method forReplication and Measurement of Concrete Surface ProfilesUsing Replica Putty1This standard is issued under the fixed designation D 7682; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, t
2、he 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 surf
3、ace 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 etc
4、hing. 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 ofnine different visual comparators called Concrete SurfaceProfiles (CSP). Thi
5、s standard compliments 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 therespon
6、sibility 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:E177 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 03732 Selecting and Specifying Con-crete Surface Preparation for Sealers, Coatings, and Poly-mer Overlays23. 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 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
10、 surface that has been abraded orroughened. 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
11、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 that a concrete surface have the correct surfaceprofile. This test method allows one to obtain a permanentr
12、eplica of the concrete surface, which can then be compared tovisual profile standards, or evaluated quantitatively for profiledepth. The permanent replica may also prove useful in resolv-ing future disputes.6. Apparatus6.1 A set of nine ICRI CSP Comparators.36.2 Replica putty and plastic profiler.1T
13、his 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 Dec. 1, 2010. Published December 2010. DOI:10.1520/D768210.2Avai
14、lable from International Concrete Repair Institute (ICRI), 3166 S. RiverRoad, Suite 132, Des Plaines, IL 60018, http/www.icri.org.3The sole source of supply of the compactors, as well as Guideline 03732 knownto the committee at this time is the International Concrete Repair Institute, 3166 S.River R
15、oad, Suite 132, Des Plaines, IL 60018. If you are aware of alternativesuppliers, please provide this information to ASTM International Headquarters.Your comments will receive careful consideration at a meeting of the responsibletechnical committee,1which you may attend.1Copyright ASTM International,
16、 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.6.3 A specially designed non-spring loaded micrometer4with 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 coupon7. Calibration and
17、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. Pr
18、ocedure8.1 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 in
19、structions.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 profil
20、er.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 comp
21、are 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 loc
22、ations 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.9. Report9.1 Rep
23、ort the following information: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 difference between thelowest and highest peak-to
24、-valley measurements on eachreplica coupon.4The sole source of supply of the micrometer known to the committee at thistime is O.T.B Technologies Inc., 2328 E. Van Buren, Suite 116, Phoenix, AZ 85006.If you are aware of alternative suppliers, please provide this information to ASTMInternational Headq
25、uarters. Your comments will receive careful consideration at ameeting of the responsible technical committee,1which you may attend.FIG. 1 Plastic Profiler with Replica Putty on ConcreteFIG. 2 Micrometer Measuring a Replica CouponD768210210. Precision and Bias510.1 The precision of this test method i
26、s based on aninterlaboratory study of Test Method D7682 for Replicationand Measurement of Concrete Surface Profiles Using ReplicaPutty, conducted in 2009. Four laboratories participated in thisstudy. Each of the labs reported five replicate test results fornine different materials. Every “test resul
27、t” reported representsthe difference between the maximum and minimum reportedresult for a set of ten grouped measurements. Except for the useof only four laboratories, Practice E691 was followed for thedesign and analysis of the data; the details are given in ASTMResearch Report RR: D011156.10.1.1 R
28、epeatability 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 the same operatorusing the
29、same equipment on the same day in the samelaboratory.10.1.1.1 Repeatability limits are listed in Table 1.10.1.2 Reproducibility Limit (R)Two test results shall bejudged not equivalent if they differ by more than the “R” valuefor that material; “R” is the interval representing the criticaldifference
30、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 2.10.1.3 The above terms (repeatability limit and reproduc-ibility limit) are used as specified in Practice E177.10.1.
31、4 Any judgment in accordance with statements 10.1.1and 10.1.2 would normally have an approximate 95 % prob-ability of being correct, however the precision statistics ob-tained in this ILS must not be treated as exact mathematicalquantities which are applicable to all circumstances and uses.The limit
32、ed number of laboratories reporting results guaranteesthat there will be times when differences greater than predictedby the ILS results will arise, sometimes with considerablygreater or smaller frequency than the 95 % probability limitwould imply. Consider the repeatability limit and the repro-duci
33、bility limit as general guides, and the associated probabil-ity of 95 % as only a rough indicator of what can be expected.10.2 BiasAt the time of the study, there was no acceptedreference material suitable for determining the bias for this testmethod, therefore no statement on bias is being made.10.
34、3 The precision statement was determined through sta-tistical examination of 180 results, from four laboratories, onnine specimens. These nine specimens were described as thefollowing:Sample 1: ICRI Concrete Surface Profile CSP 1 acid etchedSample 2: ICRI Concrete Surface Profile CSP 2 grindingSampl
35、e 3: ICRI Concrete Surface Profile CSP 3 light shot blastSample 4: ICRI Concrete Surface Profile CSP 4 light scarificationSample 5: ICRI Concrete Surface Profile CSP 5 medium shot blastSample 6: ICRI Concrete Surface Profile CSP 6 medium scarifica-tionSample 7: ICRI Concrete Surface Profile CSP 7 he
36、avy abrasiveblastSample 8: ICRI Concrete Surface Profile CSP 8 scabbledSample 9: ICRI Concrete Surface Profile CSP 9 heavy scarificationTo judge the equivalency of two test results, it is recom-mended to choose the sample closest in characteristics to thetest material.11. Keywords11.1 comparator; co
37、ncrete; concrete profiler; micrometer;replica coupon; replica putty; surface profiler; surfaceroughness5Supporting data have been filed at ASTM International Headquarters and maybe obtained by requesting Research Report RR:D01-1156.TABLE 1 Difference (mils)Sample AverageARepeatabilityStandardDeviati
38、onReproducibilityStandardDeviationRepeatabilityLimitReproducibilityLimitx SrSRrR1 17.68 5.51 6.10 15.42 17.072 20.43 7.60 7.79 21.28 21.803 18.53 7.40 7.89 20.71 22.094 28.73 9.42 11.49 26.38 32.165 33.60 12.53 13.76 35.09 38.546 78.95 15.09 18.95 42.24 53.067 119.30 28.58 29.20 80.03 81.778 165.50
39、24.91 25.40 69.74 71.119 139.68 26.21 27.16 73.39 76.04AThe average of the laboratories calculated averages.TABLE 2 Difference (microns)Converted from original measurements in mils to microns(1 mil = 25.4 m)Sample AverageARepeatabilityStandardDeviationReproducibilityStandardDeviationRepeatabilityLim
40、itReproducibilityLimitx SrSRrR1 448.9 139.9 154.8 391.7 433.52 518.8 193.0 197.8 540.5 553.83 470.5 187.9 200.4 526.0 561.54 729.6 239.3 291.7 670.0 816.85 853.4 318.4 349.6 891.4 978.86 2005.3 383.2 481.4 1072.9 1347.87 3030.2 726.0 741.8 2032.7 2076.98 4203.7 632.7 645.1 1771.5 1806.29 3547.7 665.
41、7 689.8 1864.1 1931.5AThe average of the laboratories calculated averages.D7682103ASTM International takes no position respecting 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 v
42、alidity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard 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 c
43、omments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments ha
44、ve not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multipl
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