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. The values given in parentheses are for information only.
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 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. The use of gloves, protective clothing, and eye protection is recommended. Wash contact area with copious amounts of water after contact. Wash eyes for a minimum of 15 min. Avoid exposure of the body to clothing saturated with the liquid phase of the unhardened material. Remove contaminated clothing immediately after exposure.

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Status
Historical
Publication Date
31-Oct-2003
Technical Committee
Drafting Committee
Current Stage
Ref Project

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ASTM C266-03 - Standard Test Method for Time of Setting of Hydraulic-Cement Paste by Gillmore Needles
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:C266–03
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.
1. Scope Water Storage Tanks Used in the Testing of Hydraulic
Cements and Concretes
1.1 This test method covers the determination of the time of
C 670 Practice for Preparing Precision and Bias Statements
setting of hydraulic-cement paste by means of the Gillmore
for Test Methods for Construction Materials
needles.
C 1005 Specification for Reference Masses and Devices for
1.2 The values stated in SI units are to be regarded as the
Determining Mass and Volume for Use in the Physical
standard. The values given in parentheses are for information
Testing of Hydraulic Cements
only.
D 1193 Specification for Reagent Water
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3. Terminology
responsibility of the user of this standard to establish appro-
3.1 Refer to Terminology C 219 for definitions of terms.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
4. Summary of Test Method
Warning: Fresh hydraulic cementitious mixtures are caustic
4.1 Sufficient water is added to the cement that is being
and may cause chemical burns to skin and tissue upon
tested to produce a paste of normal consistency.Aspecimen is
prolonged exposure. The use of gloves, protective clothing,
molded from this paste and is tested for time of setting by
and eye protection is recommended. Wash contact area with
means of the Gillmore initial and final needles.The initial time
copious amounts of water after contact. Wash eyes for a
of setting is the time required for the test specimen to bear the
minimum of 15 min. Avoid exposure of the body to clothing
initial Gillmore needle without appreciable indentation, while
saturated with the liquid phase of the unhardened material.
the time required for the test specimen to bear the final
Remove contaminated clothing immediately after exposure.
Gillmore needle without appreciable indentation is the final
2. Referenced Documents time of setting.
2
2.1 ASTM Standards:
5. Significance and Use
C 151 Test Method for Autoclave Expansion of Portland
5.1 The purpose of this test method is to establish whether
Cement
a cement complies with a specification limit on Gillmore time
C 183 Practice for Sampling and the Amount of Testing of
of setting.
Hydraulic Cement
C 187 Test Method for Normal Consistency of Hydraulic
6. Apparatus
Cement
6.1 Trowel, having a steel blade 100 to 150 mm (4 to 6 in.)
C 219 Terminology Relating to Hydraulic Cement
in length, with a sharpened straight edge.
C 305 PracticeforMechanicalMixingofHydraulicCement
6.2 Mixer, Bowl, Paddle, and Scraper, conforming to the
Pastes and Mortars of Plastic Consistency
requirements of Practice C 305.
C 511 Specification for Moist Cabinets, Moist Rooms, and
6.3 Glass Graduates, conforming to the requirements of
Practice C 1005.
6.4 Mass Determining Devices, conforming to the require-
1
This test method is under the jurisdiction ofASTM Committee C01 on Cement
ments of Specification C 1005.
and is the direct responsibility of Subcommittee C01.30 on Time of Set.
6.5 Plane Non-absorptive Plates, 102 mm 63mm(4in. 6
Current edition approved Nov. 1, 2003. Published December 2003. Originally
approved in 1951. Last previous edition approved in 1999 as C 266 – 99.
0.125 in.) square.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6.6 Gillmore Needles, conforming to the following require-
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
ments:
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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C266–03
6.6.1 The initial setting-time needle shall have a weight of 10.3 Time of Setting Determination—In determining the
113.4 6 0.5 g (0.250 6 0.001 lb) and a tip diameter of 2.12 6 timeofsetting,holdtheneedlesinaverticalpositionandapply
0.05 mm (0.084 6 0.002 in.). lightly to the surface of the pat. Consider the cement paste to
6.6.2 The final setting time needle shall have a weight of have acquired its initial set when the pat will bear the initial
453.6 6 0.5 g (1.000 6 0.001 lb) and a tip diameter of 1.06 6 Gillmore needle without appreciable indentation. The elapsed
0
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