ASTM C266-99
(Test Method)Standard Test Method for Time of Setting of Hydraulic-Cement Paste by Gillmore Needles
Standard Test Method for Time of Setting of Hydraulic-Cement Paste by Gillmore Needles
SCOPE
1.1 This test method covers the determination of the time of setting of hydraulic-cement paste by means of the Gillmore needles.
1.2 The values stated in SI units are to be regarded as the standard.
1.3 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems 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 266 – 99
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Method for
Time of Setting of Hydraulic-Cement Paste by Gillmore
1
Needles
This standard is issued under the fixed designation C 266; 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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1. Scope for Test Methods for Construction Materials
C 1005 Specification for Reference Masses and Devices for
1.1 This test method covers the determination of the time of
Determining Mass for Use in the Physical Testing of
setting of hydraulic-cement paste by means of the Gillmore
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Hydraulic Cements
needles.
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D 1193 Specification for Reagent Water
1.2 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information
3. Summary of Test Method
only.
3.1 Sufficient water is added to the cement that is being
1.3 This standard does not purport to address all of the
tested to produce a paste of normal consistency. A specimen is
safety concerns, if any, associated with its use. It is the
molded from this paste and is tested for setting times by means
responsibility of the user of this standard to establish appro-
of the Gillmore initial and final needles. The initial setting time
priate safety and health practices and determine the applica-
is the time required for the test specimen to bear the initial
bility of regulatory limitations prior to use. See Note 1 for a
Gillmore needle without appreciable indentation, while the
specific warning statement.
time required for the test specimen to bear the final Gillmore
NOTE 1—Warning: Fresh hydraulic cementitious mixtures are caustic
needle without appreciable indentation is the final setting time.
and may cause chemical burns to skin and tissue upon prolonged
exposure. The use of gloves, protective clothing, and eye protection is
4. Significance and Use
recommended. Wash contact area with copious amounts of water after
4.1 The purpose of this test method is to establish whether
contact. Wash eyes for a minimum of 15 min. Avoid exposure of the body
a cement complies with a specification limit on setting time.
to clothing saturated with the liquid phase of the unhardened material.
Remove contaminated clothing immediately after exposure. The time of setting is affected not only by the percentage and
temperature of the water used, and the amount of kneading the
2. Referenced Documents
paste received, but also by the temperature and humidity of the
2.1 ASTM Standards:
air.
C 151 Test Method for Autoclave Expansion of Portland
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5. Apparatus
Cement
C 183 Practice for Sampling and the Amount of Testing of
5.1 Trowel, having a steel blade 100 to 150 mm (4 to 6 in.)
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Hydraulic Cement in length, with a straight edge.
C 187 Test Method for Normal Consistency of Hydraulic
5.2 Mixer, Bowl, Paddle, and Scraper, conforming to the
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Cement
requirements of Practice C 305.
C 305 Practice for Mechanical Mixing of Hydraulic Cement 5.3 Glass Graduates, conforming to the requirements of
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Pastes and Mortars of Plastic Consistency
Specification C 490.
C 490 Practice for Use of Apparatus for the Determination 5.4 Mass Determining Devices, conforming to the require-
of Length Change of Hardened Cement Paste, Mortar, and
ments of Specification C 1005.
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Concrete 5.5 Plane Non-absorptive Plates, 102 mm 6 3mm(4in. 6
C 511 Specification for Moist Cabinets, Moist Rooms, and
0.125 in.) square.
Water Storage Tanks Used in the Testing of Hydraulic 5.6 Gillmore Needles, conforming to the following require-
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Cements and Concretes
ments:
C 670 Practice for Preparing Precision and Bias Statements 5.6.1 The initial setting-time needle shall have a weight of
113.4 6 0.5 g (0.250 6 0.001 lb) and a tip diameter of 2.126
0.05 mm (0.0846 0.002 in.).
5.6.2 The final setting time needle shall have a weight of
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This test method is under the jurisdiction of ASTM Committee C-1 on Cement
and is the direct responsibility of Subcommittee C01.30 on Time of Set.
Current edition approved Jan. 10, 1999. Published May 1999. Originally
e1 3
published as C 266 – 51 T. Last previous edition C 266 – 89 (1995) . Annual Book of ASTM Standards, Vol 04.02.
2 4
Annual Book of ASTM Standards, Vol 04.01. Annual Book of ASTM Standards, Vol 11.01.
1
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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.
C 266
453.6 6 0.5 g (1.000 6 0.001
...
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