1、Designation: D7682 10 D7682 12Standard 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 revi
2、sion, 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 laboratory use to obtain a permanent record of concr
3、ete surface profile usingreplica putty and to determine the depth of that surface profile.NOTE 1The procedure in this standard was developed for concrete substrates but may be appropriate for other rigid substrates.1.2 A profile can be imparted to concrete by various methods such as blast cleaning a
4、nd acid etching. The depth of the surfaceprofile has been shown to be a factor in coating adhesion and performance.1.3 The International Concrete Repair Institute (ICRI) provides a means of visually judging a concrete surface by use of ninedifferent visual comparators called Concrete Surface Profile
5、s (CSP). This standard compliments the use of these visualcomparators.1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use.
6、It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2E177 Practice for Use of the Terms Precision and Bias in ASTM Test MethodsE691 Pr
7、actice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method2.2 ICRI Document:Technical Guideline 03732310.2 Selecting and Specifying Concrete Surface Preparation for Sealers, Coatings, and PolymerOverlays33. Terminology3.1 Definitions of Terms Specific to This Standard
8、:3.1.1 plastic profiler, na device that provides a controlled means for holding and confining replica putty for placement ontoa concrete surface.3.1.2 replica coupon, nhardened replica putty containing a reverse image replica of a concrete surface.3.1.3 replica putty, na two-part, anti-stick, rapid
9、hardening putty used to conform to a concrete surface and replicate surfaceprofile.3.1.4 visual comparator, nan ICRI molded replica of a concrete surface profile that allows visual comparison to an actualconcrete surface.4. Summary of Test Method4.1 Method AReplica putty is used to obtain a replica
10、coupon of a concrete surface that has been abraded or roughened. Thereplica coupon is visually compared to the nine ICRI Visual Comparators (CSP), or to a specific job standard.1 This test method is under the jurisdiction of ASTM Committee D01 on Paint and Related Coatings, Materials, and Applicatio
11、ns and is the direct responsibility ofSubcommittee D01.46 on Industrial Protective Coatings.Current edition approved Dec. 1, 2010Nov. 1, 2012. Published December 2010November 2012. Originally approved in 2010. Last previous edition approved in 2010 asD7682 10. DOI: 10.1520/D768210.10.1520/D768212.2
12、For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 Available from International Concrete Repair Institute (IC
13、RI), 3166 S. River Road, Suite 132, Des Plaines, IL 60018, http/www.icri.org.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequatel
14、y depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken,
15、PA 19428-2959. United States14.2 Method BReplica putty is used to obtain a replica coupon of a concrete surface that has been abraded or roughened. Thereplica coupon is then measured by a specially designed micrometer to obtain a quantitative measurement of surface profile(depth).5. Significance and
16、 Use5.1 For proper bonding of overlays and coatings, it is important that a concrete surface have the correct surface profile. Thistest method allows one to obtain a permanent replica of the concrete surface, which can then be compared to visual profilestandards, or evaluated quantitatively for prof
17、ile depth. The permanent replica may also prove useful in resolving future disputes.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 micrometer5 with a bottom anvil of at least 38 mm (1.5 in.) diameter. The uppercon
18、tact point is machined flat to a diameter that will not indent the coupon.7. Calibration and Standardization7.1 Zero the micrometer prior to each measurement session in accordance with the manufacturers instructions.7.2 Micrometer accuracy should be checked by measuring a shim of known thickness and
19、 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 characterize the surface, as specified or agreed upon between the interestedparties.8.1.2 At each location clean the surface with a brus
20、h to remove loose material.8.1.3 Prepare the replica putty in accordance with the manufacturers instructions.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 side down. Step on or push the plastic
21、profiler until the shoulders touchthe concrete surface (see Fig. 1). Do not remove the plastic profiler.8.1.6 After sufficient time to cure in accordance with the manufacturers instructions twist the plastic profiler and remove it fromthe hardened putty (replica coupon).8.1.7 Peel the replica coupon
22、 from the concrete surface and number the back (smooth) side for future reference.8.1.8 Visually compare the replica coupon to the ICRI CSP visual comparators, and determine which comparator is visuallyclosest to the surface appearance of the replica coupon.8.2 Method B:8.2.1 Follow steps 8.1.1-8.1.
23、7 of Method A.8.2.2 On each replica coupon take at least ten micrometer measurements in different locations ensuring some measurements aretaken in the bottoms of the valleys and some measurements are taken on the tops of the peaks (see Fig. 2).4 The sole source of supply of the compactors, as well a
24、s Guideline 03732 known to the committee at this time is the International Concrete Repair Institute, 3166 S. RiverRoad, Suite 132, Des Plaines, IL 60018. If you are aware of alternative suppliers, please provide this information to ASTM International Headquarters. Your comments willreceive careful
25、consideration at a meeting of the responsible technical committee,1 which you may attend.5 The sole source of supply of the micrometer known to the committee at this time is O.T.B Technologies Inc., 2328 E. Van Buren, Suite 116, Phoenix, AZ 85006. If youare aware of alternative suppliers, please pro
26、vide this information to ASTM International Headquarters. Your comments will receive careful consideration at a meeting ofthe responsible technical committee,1 which you may attend.FIG. 1 Plastic Profiler with Replica Putty on ConcreteD7682 1228.2.3 Subtract the lowest thickness measurement from the
27、 highest thickness measurement to determine the profile range for eachreplica coupon.9. Report9.1 Report 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 closest matching ICRI C
28、SP visual comparator.9.1.2.2 For Method B, record the difference between the lowest and highest peak-to-valley measurements on each replicacoupon.10. Precision and Bias610.1 The precision of this test method is based on an interlaboratory study of TestASTM D7682Method, D7682Standard TestMethod for R
29、eplication and Measurement of Concrete Surface Profiles Using Replica Putty, Method B, conducted in 2009.Four2012. Six laboratories participated in this study. Each of the labs reported five replicate the study, testing four different surfacepreparations. Every analyst reported triplicate test resul
30、ts for nine different materials. Every “test result” reported represents thedifference between the maximum and minimum reported result for a set of ten grouped measurements. Except for the use of onlyfour laboratories,each of the surface preps in this study. Practice E691 was followed for the design
31、 and analysis of the data; thestudy design; the details are given in ASTM Research Report RR:No. RR:D01-1165D011156. .10.1.1 Repeatability Limit (r)Two test results obtained within one laboratory shall be judged not equivalent if they differ bymore than the “r” value for that material; “r” is the in
32、terval representing the critical difference between two test results for the samematerial, obtained by the same operator using the same equipment on the same day in the same laboratory.10.1.1.1 Repeatability limits are listed in Table 1 and Table 2.6 Supporting data have been filed at ASTM Internati
33、onal Headquarters and may be obtained by requesting Research Report RR:D01-1156RR:D01-1165.FIG. 2 Micrometer Measuring a Replica CouponD7682 12310.1.2 Reproducibility Limit (R)Two test results shall be judged not equivalent if they differ by more than the “R” value forthat material; “R” is the inter
34、val representing the critical difference between two test results for the same material, obtained bydifferent operators using different equipment in different laboratories.10.1.2.1 Reproducibility limits are listed in Table 1 and Table 2.10.1.3 The above terms (repeatability limit and reproducibilit
35、y limit) are used as specified in Practice E177.10.1.4 Any judgment in accordance with statements 10.1.1 and 10.1.2 would normally have an approximate 95 % probabilityof being correct, however the precision statistics obtained in this ILS must not be treated as exact mathematical quantities whichare
36、 applicable to all circumstances and uses. The limited number of laboratories reporting results guarantees that there will be timeswhen differences greater than predicted by the ILS results will arise, sometimes with considerably greater or smaller frequency thanthe 95 % probability limit would impl
37、y. Consider the repeatability limit and the reproducibility limit as general guides, and theassociated probability of 95 % as only a rough indicator of what can be expected.correct.10.2 BiasAt the time of the study, there was no accepted reference material suitable for determining the bias for this
38、testmethod, therefore no statement on bias is being made.10.3 The precision statement was determined through statistical examination of 18072 results, from four laboratories, on ninespecimens. These nine specimens were described as the following: a total of six laboratories, on four surface preparat
39、ions.TABLE 1 Difference (mils)Sample AverageA RepeatabilityStandardDeviationReproducibilityStandardDeviationRepeatabilityLimitReproducibilityLimitx Sr SR r R1 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
40、38.546 78.95 15.09 18.95 42.24 53.067 119.30 28.58 29.20 80.03 81.778 165.50 24.91 25.40 69.74 71.119 139.68 26.21 27.16 73.39 76.04TABLE 1 Difference (mm)Material AverageAXRepeatabilityStandardDeviationsrReproducibilityStandardDeviationSRRepeatabilityLimitrReproducibilityLimitRDiamond ground surfac
41、e 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 surface 3.4133 0.3782 0.4543 1.0590 1.2719A The average of the laboratories calculated averages.TABLE 2 Difference (microns)
42、Converted from original measurements in mils to microns(1 mil = 25.4 m)Sample AverageA RepeatabilityStandardDeviationReproducibilityStandardDeviationRepeatabilityLimitReproducibilityLimitx Sr SR r R1 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 2
43、39.3 291.7 670.0 816.85 853.4 318.4 349.6 891.4 978.86 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 3547.7 665.7 689.8 1864.1 1931.5A The average of the laboratories calculated averages.D7682 124Sample 1: ICRI Concrete Surface Profile CSP 1 ac
44、id etchedSample 2: ICRI Concrete Surface Profile CSP 2 grindingSample 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 m
45、ediumscarificationSample 7: ICRI Concrete Surface Profile CSP 7 heavy 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 recommended to choose the sample closest in ch
46、aracteristics to the test material.11. Keywords11.1 comparator; concrete; concrete profiler; micrometer; replica coupon; replica putty; surface profiler; surface roughnessASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedi
47、n 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 standard is subject to revision at any time by the responsible technical committee and mu
48、st 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 International Headquarters. Your comments will receive careful consideration at a meeting of th
49、eresponsible 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.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 multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through
