ASTM C232-07
(Test Method)Standard Test Methods for Bleeding of Concrete
Standard Test Methods for Bleeding of Concrete
SIGNIFICANCE AND USE
This test method provides procedures to be used for determining the effect of variables of composition, treatment, environment, or other factors in the bleeding of concrete. It is also permitted to be used to determine the conformance of a product or treatment with a requirement relating to its effect on bleeding of concrete.
Method A—For a sample consolidated by rodding only and tested without further disturbance, thus simulating conditions in which the concrete, after placement, is not subjected to intermittent vibration.
Method B—For a sample consolidated by vibration and tested with further intermittent periods of vibration, thus simulating conditions in which concrete, after being placed, is subjected to intermittent vibration.
SCOPE
1.1 These test methods cover the determination of the relative quantity of mixing water that will bleed from a sample of freshly mixed concrete. Two test methods, that differ primarily in the degree of vibration to which the concrete sample is subjected, are included.
1.2 The two test methods are not expected to yield the same test results when samples of concrete from the same batch are tested by each method. When various concretes are to be compared, all the tests must be conducted using the same method, and if the batches are of similar unit weight, the sample masses shall not differ by more than 1 kg (2 lb).
1.3 The values stated in SI units are to be regarded as standard. The values in parentheses are provided for information purposes only.
1.4 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.
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 and health practices and determine the applicability of regulatory limitations prior to use. (Warning-Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure).
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:C232–07
Standard Test Methods for
1
Bleeding of Concrete
This standard is issued under the fixed designation C 232; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* C 192/C 192M Practice for Making and Curing Concrete
Test Specimens in the Laboratory
1.1 These test methods cover the determination of the
C 670 Practice for Preparing Precision and Bias Statements
relative quantity of mixing water that will bleed from a sample
for Test Methods for Construction Materials
of freshly mixed concrete. Two test methods, that differ
primarily in the degree of vibration to which the concrete
3. Significance and Use
sample is subjected, are included.
3.1 This test method provides procedures to be used for
1.2 The two test methods are not expected to yield the same
determining the effect of variables of composition, treatment,
test results when samples of concrete from the same batch are
environment, or other factors in the bleeding of concrete. It is
tested by each method. When various concretes are to be
also permitted to be used to determine the conformance of a
compared, all the tests must be conducted using the same
product or treatment with a requirement relating to its effect on
method, and if the batches are of similar unit weight, the
bleeding of concrete.
sample masses shall not differ by more than 1 kg (2 lb).
3.2 Method A—For a sample consolidated by rodding only
1.3 The values stated in SI units are to be regarded as
and tested without further disturbance, thus simulating condi-
standard. The values in parentheses are provided for informa-
tions in which the concrete, after placement, is not subjected to
tion purposes only.
intermittent vibration.
1.4 The text of this standard references notes and footnotes
3.3 Method B—For a sample consolidated by vibration and
which provide explanatory material. These notes and footnotes
tested with further intermittent periods of vibration, thus
(excluding those in tables and figures) shall not be considered
simulating conditions in which concrete, after being placed, is
as requirements of the standard.
subjected to intermittent vibration.
1.5 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
TEST METHOD A—SAMPLE CONSOLIDATED BY
responsibility of the user of this standard to establish appro-
TAMPING
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. (Warning—Fresh
4. Apparatus
hydraulic cementitious mixtures are caustic and may cause
4.1 Container—A cylindrical container of approximately
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chemical burns to skin and tissue upon prolonged exposure). 3
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14L( ⁄2-ft )capacity,havinganinsidediameterof255 65mm
1 1
(10 6 ⁄4in.)andaninsideheightof280 65mm(11 6 ⁄4in.).
2. Referenced Documents
The container shall be made of metal having a thickness of
3
2.1 ASTM Standards:
2.67 to 3.40 mm (0.105 to 0.134 in.) and shall be externally
C 138/C 138M Test Method for Density (Unit Weight),
reinforced around the top with a 2.67 to 3.40 mm (0.105 to
Yield, and Air Content (Gravimetric) of Concrete
1
0.134 in.) metal band, 40 mm (1 ⁄2 in.) wide. The inside shall
C 172 Practice for Sampling Freshly Mixed Concrete
be smooth and free of corrosion, coatings, or lubricants.
4.2 Scale, of sufficient capacity to determine the mass of the
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load required with an accuracy of 0.5 %. Balances or scales
These test methods are under the jurisdiction of ASTM Committee C09 on
ConcreteandConcreteAggregatesandarethedirectresponsibilityofSubcommittee
shall be calibrated at least annually or whenever there is reason
C09.60 on Testing Fresh Concrete.
to question the accuracy of the equipment. Equipment not in
Current edition approved July 15, 2007. Published August 2007. Originally
operating condition or out of tolerance shall be marked as such
approved in 1949. Last previous edition approved in 2004 as C 232 – 04.
2
Section on Safety Precautions, Manual of Aggregate and Concrete Testing, and taken out of service until corrected.
Annual Book of ASTM Standards, Vol 04.02.
4.3 Pipet, or similar instrument, for drawing off free water
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
from the surface of the test specimen.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
*A Summary of Changes section appears at the end of this standard.
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