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ASTM D8271-19

(Test Method)

Standard Test Method for the Direct Measurement of Surface Profile of Prepared Concrete

Standard Test Method for the Direct Measurement of Surface Profile of Prepared Concrete

SIGNIFICANCE AND USE
4.1 Proper bonding of coatings and linings to concrete surfaces requires proper cleaning and frequently requires the concrete to be roughened to increase the surface area. The roughness, also known as surface profile, can be imparted into concrete by abrasive blast cleaning, acid etching or various impact/scarifying power tools. The resulting surface profile depth can influence coating/lining adhesion and performance. Coating/lining manufacturers and/or facility owners frequently specify cleaning and roughening of the concrete surface prior to product installation. The procedure described herein enables the user to quantitatively determine the profile directly from the prepared concrete surface in multiple locations. The procedure is similar to that described in Method B of ASTM D4417, which addresses measurement of surface profile on abrasive blast cleaned steel surfaces.
SCOPE
1.1 This test method is suitable for both field and laboratory use to quantify the depth of surface profile of prepared concrete. It may also be used on unprepared concrete surfaces.  
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.  
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 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.

General Information

Status
Historical
Publication Date
31-Jul-2019
ICS
17.040.20 - Properties of surfaces
91.100.30 - Concrete and concrete products
Technical Committee
D01 - Paint and Related Coatings, Materials, and Applications
Drafting Committee
D01.46 - Industrial Protective Coatings
Current Stage
Ref Project

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ASTM D8271-19 - Standard Test Method for the Direct Measurement of Surface Profile of Prepared ConcreteASTM D8271-19 - Standard Test Method for the Direct Measurement of Surface Profile of Prepared Concrete
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ASTM D8271-19 - Standard Test Method for the Direct Measurement of Surface Profile of Prepared Concrete
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D8271 −19
Standard Test Method for
the Direct Measurement of Surface Profile of Prepared
1
Concrete
This standard is issued under the fixed designation D8271; 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 concrete to be roughened to increase the surface area. The
roughness, also known as surface profile, can be imparted into
1.1 This test method is suitable for both field and laboratory
concrete by abrasive blast cleaning, acid etching or various
use to quantify the depth of surface profile of prepared
impact/scarifying power tools. The resulting surface profile
concrete. It may also be used on unprepared concrete surfaces.
depth can influence coating/lining adhesion and performance.
1.2 The values stated in SI units are to be regarded as
Coating/lining manufacturers and/or facility owners frequently
standard. The values given in parentheses after SI units are
specify cleaning and roughening of the concrete surface prior
provided for information only and are not considered standard.
to product installation. The procedure described herein enables
1.3 This standard does not purport to address all of the
theusertoquantitativelydeterminetheprofiledirectlyfromthe
safety concerns, if any, associated with its use. It is the prepared concrete surface in multiple locations. The procedure
responsibility of the user of this standard to establish appro-
is similar to that described in Method B of ASTM D4417,
priate safety, health, and environmental practices and deter- which addresses measurement of surface profile on abrasive
mine the applicability of regulatory limitations prior to use.
blast cleaned steel surfaces.
1.4 This international standard was developed in accor-
dance with internationally recognized principles on standard-
5. Apparatus
ization established in the Decision on Principles for the
5.1 A depth micrometer fitted with a remote pointed probe.
Development of International Standards, Guides and Recom-
The probe point is machined at a 60° included angle with a
mendations issued by the World Trade Organization Technical
nominal radius of 500 µm at the tip and exerting a minimum
Barriers to Trade (TBT) Committee.
force of 75 g.The base of the probe has a surface area diameter
2. Referenced Documents between 20 and 25 mm.This base rests on the tops of the peaks
2 of the surface profile while the spring-loaded tip, protruding
2.1 ASTM Standards:
from the probe face projects into the valleys. The distance that
D4417 Test Methods for Field Measurement of Surface
the tip projects into the valley relative to the tops of the peaks
Profile of Blast Cleaned Steel
is displayed.
E178 Practice for Dealing With Outlying Observations
5.2 The depth micrometer must have a minimum upper
3. Summary of Test Method
range of 6 mm (250 mils) and a manufacturer stated accuracy
3.1 The depth of profile is measured using a fine pointed
of 61 % or greater.
probe at a predetermined number of locations, and the range
and arithmetic mean of the maximum peak-to-valley distances
6. Test Surface
is determined.
6.1 Any concrete/masonry surface that is free of loose
4. Significance and Use
surface interference material, dirt, dust, and abrasive residue.
The instrument probe must sit flush on the concrete surface;
4.1 Proper bonding of coatings and linings to concrete
care should be taken when measuring on curved surfaces.
surfaces requires proper cleaning and frequently requires the
1 7. Procedure
This test method is under the jurisdiction of ASTM Committee D01 on Paint
and Related Coatings, Materials, andApplications and is the direct responsibility of
7.1 Verify instrument accuracy prior to each period of use
Subcommittee D01.46 on Industrial Protective Coatings.
by measuring a metal shim of known thickness placed onto
Current edition approved Aug. 1, 2019. Published August 2019. DOI: 10.1520/
D8271-19.
plate float glass (see 7.2). Both are usually supplied by the
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
instrument manufacturer. Certified standards are also available.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
If the average of at least three measurements is not within the
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. combined tolerance of the instrument and the shim or certified
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D8271 − 19
3
standards , follow the instrument manufactu
...

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4.1 Proper bonding of coatings and linings to concrete surfaces requires proper cleaning and frequently requires the concrete to be roughened to increase the surface area. The roughness, also known as surface profile, can be imparted into concrete by abrasive blast cleaning, acid etching or various impact/scarifying power tools. The resulting surface profile depth can influence coating/lining adhesion and performance. Coating/lining manufacturers or facility owners, or both, frequently specify cleaning and roughening of the concrete surface prior to product installation. The procedure described herein enables the user to quantitatively determine the profile directly from the prepared concrete surface in multiple locations. The procedure is similar to that described in Method B of Test Methods D4417, which addresses measurement of surface profile on abrasive blast cleaned steel surfaces.
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