ASTM C672/C672M-98e1
(Test Method)Standard Test Method for Scaling Resistance of Concrete Surfaces Exposed to Deicing Chemicals
Standard Test Method for Scaling Resistance of Concrete Surfaces Exposed to Deicing Chemicals
SCOPE
1.1 This test method covers the determination of the resistance to scaling of a horizontal concrete surface exposed to freezing-and-thawing cycles in the presence of deicing chemicals. It is intended for use in evaluating this surface resistance qualitatively by visual examination.
1.2 The values stated in inch-pound units are to be regarded as the standard.
1.3 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: C 672/C 672M – 98
Standard Test Method for
Scaling Resistance of Concrete Surfaces Exposed to
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Deicing Chemicals
This standard is issued under the fixed designation C 672/C 672M; 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 (e) indicates an editorial change since the last revision or reapproval.
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e NOTE—Sections 4.5 and 4.6 were editorially corrected November 2002.
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1. Scope Cements and Concretes
1.1 This test method covers the determination of the resis-
3. Significance and Use
tance to scaling of a horizontal concrete surface exposed to
3.1 This test method can be used to evaluate the effect of
freezing-and-thawing cycles in the presence of deicing chemi-
mixture proportioning, surface treatment, curing, or other
cals. It is intended for use in evaluating this surface resistance
variables on resistance to scaling.
qualitatively by visual examination.
3.2 This test method is not intended to be used in determin-
1.2 The values stated in either SI units or inch-pound units
ing the durability of aggregates or other ingredients of the
are to be regarded separately as standard. Within the text, the
concrete.
inch-pound units are shown in brackets. The values stated in
3.3 No relationship has been established between the frost
each system are not exact equivalents; therefore, each system
immunity of specimens cut from hardened concrete and
shall be used independently of the other.
specimens prepared in the laboratory.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4. Apparatus
responsibility of the user of this standard to establish appro-
4.1 Freezing Equipment—A chest or room of sufficient size
priate safety and health practices and determine the applica-
to hold the specimens and capable of lowering the temperature
bility of regulatory limitations prior to use.
of the specimens to −18 6 3°C [0 6 5°F] within 16 to 18 h and
2. Referenced Documents maintaining this temperature with a full load of specimens.
4.2 Molds, of the proper size for the test specimens to be
2.1 ASTM Standards:
used, and conforming to the requirements of Practice C 192.
C 143 Test Method for Slump of Hydraulic Cement Con-
2 4.3 Tamping Rod, conforming to the requirements of Test
crete
Method C 143.
C 156 Test Method for Water Retention by Concrete Curing
2 4.4 Small Tools—Wood strike-off board, steel trowel, and
Materials
moderately stiff bristle brush suitable for providing the desired
C 173 Test Method for Air Content of Freshly Mixed
2 texture of the test surface.
Concrete by the Volumetric Method
4.5 Slump Cone, conforming to the requirements of Test
C 192/C 192M Practice for Making and Curing Concrete
2 Method C 143.
Test Specimens in the Laboratory
4.6 Air Meter, conforming to the requirements of Test
C 231 Test Method for Air Content of Freshly Mixed
2 Method C 173 or Test Method C 231.
Concrete by the Pressure Method
4.7 Scales, conforming to the requirements of Practice
C 233 Test Method for Air-Entraining Admixtures for Con-
2 C 192.
crete
4.8 Concrete Mixer, conforming to the requirements of
C 511 Specification for Moist Cabinets, Moist Rooms, and
Practice C 192.
Water Storage Tanks Used in the Testing of Hydraulic
5. Proportioning and Mixing
5.1 Proportioning—The air content, cement factor, slump,
water-to-cement ratio, and other characteristics of the concrete
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This test method is under the jurisdiction of ASTM Committee C-9 on Concrete
and its ingredients shall be those appropriate for the purposes
and Concrete Aggregates and is the direct responsibility of Subcommittee C09.67 on
Resistance of Concrete to Its Environment.
Current edition approved May 10, 1998. Published December 1998. Originally
published as C 672 – 71 T. Last previous edition C 672 – 92.
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Annual Book of ASTM Standards, Vol 04.02. Annual Book of ASTM Standards, Vol 04.01.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
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C 672/C 672M – 98
for which the tests are to be made. Concrete with the following been taken. This may be accomplished by wrapping the
characteristics has been found useful for the purposes for specimens in some waterproof material or by other suitable
which this test method is generally used, such as evaluation of means.
a surface treatment for prevention of scaling: (a) non-air-
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7. Curing
entrained; (b) cement
...
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