ASTM D7682-17(2022)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:D7682 −17 (Reapproved 2022)
Standard Test Method for
Replication and Measurement of Concrete Surface Profiles
Using Replica Putty
This standard is issued under the fixed designation D7682; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
1.1 This test method is suitable for both field and laboratory 2.1 ASTM Standards:
use to obtain a permanent record of concrete surface profile E177 Practice for Use of the Terms Precision and Bias in
using replica putty and to determine the depth of that surface ASTM Test Methods
profile. E691 Practice for Conducting an Interlaboratory Study to
NOTE 1—The procedure in this standard was developed for concrete
Determine the Precision of a Test Method
substrates but may be appropriate for other rigid substrates.
2.2 ICRI Document:
1.2 A profile can be imparted to concrete by various
Technical Guideline 310.2 Selecting and Specifying Con-
methods such as blast cleaning and acid etching. The depth of
crete Surface Preparation for Sealers, Coatings, and Poly-
the surface profile has been shown to be a factor in coating
mer Overlays
adhesion and performance.
3. Terminology
1.3 The International Concrete Repair Institute (ICRI) pro-
3.1 Definitions of Terms Specific to This Standard:
vides a means of visually judging a concrete surface by use of
ten different visual comparators called Concrete Surface Pro- 3.1.1 plastic profiler, n—a device that provides a controlled
means for holding and confining replica putty for placement
files (CSP). This standard compliments the use of these visual
comparators. onto a concrete surface.
3.1.2 replica coupon, n—hardened replica putty containing
1.4 The values stated in SI units are to be regarded as
a reverse image replica of a concrete surface.
standard. The values given in parentheses are for information
only.
3.1.3 replica putty, n—a two-part, anti-stick, rapid harden-
ing putty used to conform to a concrete surface and replicate
1.5 This standard does not purport to address all of the
surface profile.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
3.1.4 surface profile, n—the height of the major peaks
priate safety, health, and environmental practices and deter-
relative to the major valleys.
mine the applicability of regulatory limitations prior to use.
3.1.5 visual comparator, n—an ICRI molded replica of a
1.6 This international standard was developed in accor-
concrete surface profile that allows visual comparison to an
dance with internationally recognized principles on standard-
actual concrete surface.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
4. Summary of Test Method
mendations issued by the World Trade Organization Technical
4.1 The methods are:
Barriers to Trade (TBT) Committee.
1 2
This test method is under the jurisdiction of ASTM Committee D01 on Paint For referenced ASTM standards, visit the ASTM website, www.astm.org, or
and Related Coatings, Materials, andApplications and is the direct responsibility of contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Subcommittee D01.46 on Industrial Protective Coatings. Standards volume information, refer to the standard’s Document Summary page on
CurrenteditionapprovedJune1,2022.PublishedJuly2022.Originallyapproved the ASTM website.
in 2010. Last previous edition approved in 2017 as D7682 – 17. DOI: 10.1520/ Available from International Concrete Repair Institute (ICRI), 1000 Westgate
D7682-17R22. Drive, 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 States
D7682−17 (2022)
4.1.1 Method A—Replica putty is used to obtain a replica 8. Procedure
coupon of a concrete surface that has been abraded or
8.1 Method A:
roughened. The replica coupon is visually compared to the ten
8.1.1 Select a sufficient number of locations to characterize
ICRI Visual Comparators (CSP), or to a specific job standard.
the surface, as specified or agreed upon between the interested
4.1.2 Method B—Replica putty is used to obtain a replica
parties.
coupon of a concrete surface that has been abraded or
8.1.2 At each location clean the surface with a brush to
roughened.The replica coupon is then measured by a specially
remove loose material.
designed micrometer to obtain a quantitative measurement of
8.1.3 Prepare the replica putty in accordance with the
surface profile (depth).
manufacturer’s instructions.
8.1.4 Place the mixed replica putty into a plastic profiler,
5. Significance and Use
mounding the putty in the middle.
5.1 For proper bonding of overlays and coatings, it is
8.1.5 Place the plastic profiler onto the concrete, putty side
important that a concrete surface have the correct surface
down. Step on or push the plastic profiler until the shoulders
profile. This test method allows one to obtain a permanent
touch the concrete surface (see Fig. 1). Do not remove the
replica of the concrete surface, which can then be compared to
plastic profiler.
visual profile standards, or evaluated quantitatively for profile
8.1.6 After sufficient time to cure in accordance with the
depth. The permanent replica may also prove useful in resolv-
manufacturer’s instructions twist the plastic profiler and re-
ing future disputes.
move it from the hardened putty (replica coupon).
8.1.7 Peel the replica coupon from the concrete surface and
6. Apparatus
number the back (smooth) side for future reference.
6.1 A set of ten ICRI CSP Comparators.
8.1.8 Visually compare the replica coupon to the ICRI CSP
6.2 Replica putty and plastic profiler.
visual comparators, and determine which comparator is visu-
6.3 A specially designed non-spring loaded micrometer ally closest to the surface appearance of the replica coupon.
with a bottom anvil of at least 38 mm (1.5 in.) diameter. The
8.2 Method B:
upper contact point is machined flat to a diameter that will not
8.2.1 Follow steps 8.1.1 – 8.1.7 of Method A.
indent the coupon.
8.2.2 On each replica coupon take at least ten micrometer
measurements in different locations ensuring some
...