ASTM D1734-93(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: D1734 − 93 (Reapproved 2022)
Standard Practice for
Making Cementitious Panels for Testing Coatings
This standard is issued under the fixed designation D1734; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope Testing of Hydraulic Cements and Concretes
C778 Specification for Standard Sand
1.1 This practice covers procedures for molding and curing
C1005 Specification for Reference Masses and Devices for
cementitious panels for use in exposure testing of coatings
DeterminingMassandVolumeforUseinPhysicalTesting
designed for masonry or cementitious surfaces, although these
of Hydraulic Cements
may be suitable for other tests.
D4258 Practice for Surface Cleaning Concrete for Coating
1.2 The values stated in SI units are to be regarded as the
D4259 Practice for Preparation of Concrete by Abrasion
standard. The values given in parentheses are for information
Prior to Coating Application
only.
D4260 Practice for Liquid and Gelled Acid Etching of
1.3 This standard does not purport to address all of the Concrete
safety concerns, if any, associated with its use. It is the
3. Significance and Use
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
3.1 Researchers in the field of coatings have recognized the
mine the applicability of regulatory limitations prior to use.
need for a standardized substrate for evaluating coatings
1.4 This international standard was developed in accor-
intended for use on cementitious surfaces. This practice de-
dance with internationally recognized principles on standard-
scribes the preparation of such panels.
ization established in the Decision on Principles for the
4. Apparatus
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
4.1 Molds—High density polyethylene molds to make the
Barriers to Trade (TBT) Committee.
panels as required.
4.1.1 Outdoor Exposure Tests, for use on outdoor exposure
2. Referenced Documents
testing racks, the panels shall be 200 by 300 by 15 mm (8 by
2.1 ASTM Standards:
12 by ⁄16 in.) in size.
C109/C109M Test Method for Compressive Strength of
4.1.2 Machine Exposure Tests, for machine exposure tests,
Hydraulic Cement Mortars (Using 2-in. or [50 mm] Cube
the typical panel is 75 by 150 by 15 mm (3 by 6 by ⁄16 in.) in
Specimens)
size.
C150 Specification for Portland Cement
4.1.3 Other sizes to fit specific equipment may be used.
C230/C230M Specification for Flow Table for Use in Tests
4.2 Trowel, rectangular having a steel blade approximately
of Hydraulic Cement
100 to 150 mm (4 to 6 in.) in length, with straight edges, and
C305 Practice for Mechanical Mixing of Hydraulic Cement
75 to 125 mm (3 to 5 in.) in width is generally recommended.
Pastes and Mortars of Plastic Consistency
4.3 Weights and Weighing Devices, conforming to the re-
C511 Specification for Mixing Rooms, Moist Cabinets,
quirements of Specification C1005. The weighing device shall
Moist Rooms, and Water Storage Tanks Used in the
be evaluated for precision and bias at a total load of 2000 g.
4.4 Mechanical Mixer—An electrically driven mechanical
This practice is under the jurisdiction of ASTM Committee D01 on Paint and
mixer of the type equipped with a paddle and mixing bowl, as
Related Coatings, Materials, and Applications and is the direct responsibility of
specified in Practice C305.
Subcommittee D01.47 on Concrete, Stone and Masonry Treatments.
Current edition approved Jan. 1, 2022. Published January 2022. Originally
approved in 1960. Last previous edition approved in 2013 as D1734 – 93 (2013).
DOI: 10.1520/D1734-93R22. The sole source of supply of molds known to the committee at this time is the
For referenced ASTM standards, visit the ASTM website, www.astm.org, or American Cube Mold, Macedonia, OH 44056. If you are aware of alternative
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM suppliers, please provide this information to ASTM International Headquarters.
Standards volume information, re
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