ASTM C266-08e1
(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
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 inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
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.
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.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
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Designation: C266 − 08
StandardTest Method for
Time of Setting of Hydraulic-Cement Paste by Gillmore
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Needles
This standard is issued under the fixed designation C266; 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 (´) indicates an editorial change since the last revision or reapproval.
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ε NOTE—Fig. 1 was corrected editorially in July 2011.
1. Scope* C151 Test Method for Autoclave Expansion of Hydraulic
Cement
1.1 This test method covers the determination of the time of
C183 Practice for Sampling and the Amount of Testing of
setting of hydraulic-cement paste by means of the Gillmore
Hydraulic Cement
needles.
C187 Test Method for Amount of Water Required for Nor-
1.2 The values stated in inch-pound units are to be regarded
mal Consistency of Hydraulic Cement Paste
as standard. The values given in parentheses are mathematical
C219 Terminology Relating to Hydraulic Cement
conversions to SI units that are provided for information only
C305 Practice for Mechanical Mixing of Hydraulic Cement
and are not considered standard.
Pastes and Mortars of Plastic Consistency
C511 Specification for Mixing Rooms, Moist Cabinets,
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the Moist Rooms, and Water Storage Tanks Used in the
Testing of Hydraulic Cements and Concretes
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica- C670 Practice for Preparing Precision and Bias Statements
for Test Methods for Construction Materials
bility of regulatory limitations prior to use.
Warning:Fresh hydraulic cementitious mixtures are caustic C1005 Specification for Reference Masses and Devices for
Determining Mass and Volume for Use in the Physical
and may cause chemical burns to skin and tissue upon
prolonged exposure. The use of gloves, protective clothing, Testing of Hydraulic Cements
and eye protection is recommended. Wash contact area with D1193 Specification for Reagent Water
copious amounts of water after contact. Wash eyes for a
3. Terminology
minimum of 15 min. Avoid exposure of the body to clothing
3.1 Refer to Terminology C219 for definitions of terms.
saturated with the liquid phase of the unhardened material.
Remove contaminated clothing immediately after exposure.
4. Summary of Test Method
1.4 The text of this standard references notes and footnotes
4.1 Sufficient water is added to the cement that is being
which provide explanatory material. These notes and footnotes
tested to produce a paste of normal consistency.Aspecimen is
(excluding those in tables and figures) shall not be considered
molded from this paste and is tested for time of setting by
as requirements of the standard.
means of the Gillmore initial and final needles.The initial time
of setting is the time elapsed between initial contact of cement
2. Referenced Documents
and water and the time when the Gillmore Initial needle does
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2.1 ASTM Standards:
not leave a complete circular impression in the paste surface.
The final time of setting is the time elapsed between initial
contact of cement and water and the time when the Gillmore
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This test method is under the jurisdiction ofASTM Committee C01 on Cement
Final needle does not leave a complete circular impression in
and is the direct responsibility of Subcommittee C01.30 on Time of Set
the paste surface.
CurrenteditionapprovedJune1,2008.PublishedJuly2008.Originallyapproved
in 1951. Last previous edition approved in 2007 as C266 – 07. DOI: 10.1520/
5. Significance and Use
C0266-08.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.1 The purpose of this test method is to establish whether
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
a cement complies with a specification limit on Gillmore time
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. of setting.
*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 − 08
FIG. 1 Gillmore Apparatus and Test Specimen
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C266 − 08
6. Apparatus 10.1.1 Prepare a new batch of paste by mixing 650 g of
cement with the percentage of mixing water required for
6.1 Flat Trowel, having a sharpened straight-edged steel
normal consistency (Test Method C187), following the proce-
blade 100 to 150 mm in length. The edges when placed on a
dure described in Practice C305.
p
...
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