Standard Test Method for Time of Setting of Hydraulic-Cement Paste by Gillmore Needles

SIGNIFICANCE AND USE
The purpose of this test method is to establish whether a cement complies with a specification limit on Gillmore time of setting.
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.
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.
1.3 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.

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Status
Historical
Publication Date
14-Jul-2007
Technical Committee
Drafting Committee
Current Stage
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ASTM C266-07 - 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:C266–07
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* C 187 Test Method for Normal Consistency of Hydraulic
Cement
1.1 This test method covers the determination of the time of
C 219 Terminology Relating to Hydraulic Cement
setting of hydraulic-cement paste by means of the Gillmore
C 305 PracticeforMechanicalMixingofHydraulicCement
needles.
Pastes and Mortars of Plastic Consistency
1.2 The values stated in SI units are to be regarded as the
C511 Specification for Mixing Rooms, Moist Cabinets,
standard. The values given in parentheses are for information
Moist Rooms, and Water Storage Tanks Used in the
only.
Testing of Hydraulic Cements and Concretes
1.3 This standard does not purport to address all of the
C 670 Practice for Preparing Precision and Bias Statements
safety concerns, if any, associated with its use. It is the
for Test Methods for Construction Materials
responsibility of the user of this standard to establish appro-
C 1005 Specification for Reference Masses and Devices for
priate safety and health practices and determine the applica-
Determining Mass and Volume for Use in the Physical
bility of regulatory limitations prior to use.
Testing of Hydraulic Cements
Warning: Fresh hydraulic cementitious mixtures are caustic
D 1193 Specification for Reagent Water
and may cause chemical burns to skin and tissue upon
prolonged exposure. The use of gloves, protective clothing,
3. Terminology
and eye protection is recommended. Wash contact area with
3.1 Refer to Terminology C 219 for definitions of terms.
copious amounts of water after contact. Wash eyes for a
minimum of 15 min. Avoid exposure of the body to clothing
4. Summary of Test Method
saturated with the liquid phase of the unhardened material.
4.1 Sufficient water is added to the cement that is being
Remove contaminated clothing immediately after exposure.
tested to produce a paste of normal consistency.Aspecimen is
1.4 The text of this standard references notes and footnotes
molded from this paste and is tested for time of setting by
which provide explanatory material. These notes and footnotes
means of the Gillmore initial and final needles.The initial time
(excluding those in tables and figures) shall not be considered
of setting is the time required for the test specimen to bear the
as requirements of the standard.
initial Gillmore needle without appreciable indentation, while
2. Referenced Documents the time required for the test specimen to bear the final
2 Gillmore needle without appreciable indentation is the final
2.1 ASTM Standards:
time of setting.
C 151 Test Method for Autoclave Expansion of Hydraulic
Cement
5. Significance and Use
C 183 Practice for Sampling and the Amount of Testing of
5.1 The purpose of this test method is to establish whether
Hydraulic Cement
a cement complies with a specification limit on Gillmore time
of setting.
1
This test method is under the jurisdiction ofASTM Committee C01 on Cement
and is the direct responsibility of Subcommittee C01.30 on Time of Set
6. Apparatus
Current edition approved July 15, 2007. Published August 2007. Originally
approved in 1951. Last previous edition approved in 2004 as C 266 – 04. 6.1 Flat Trowel, having a sharpened straight-edged steel
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
blade 100 to 150 mm in length.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6.2 Mixer, Bowl, Paddle, and Scraper, conforming to the
Standards volume information, refer to the standard’s Document Summary page on
requirements of Practice C 305.
the ASTM website.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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C266–07
6.3 Glass Graduates, 200 or 250 mL capacity, conforming 10.2 Molding Test Specimen—From the cement paste pre-
to the requirements of Practice C 1005. pared as described in 10.1, make a pat with a flat top and the
6.4 Mass Determining Devices, conforming to the require- sides tapering to a thin edge on a plane non-absorptive plate,
ments of Specification C 1005. The devices for determining conforming to the dimensions and tolerances in Fig. 1 (a). In
mass shall be evaluated for precision and bias at a total load of molding the pat, flatten the cement paste first on the plate and
1000
...

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