ASTM C266-08
(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.
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Designation:C266–08
Standard Test Method for
Time of Setting of Hydraulic-Cement Paste by Gillmore
1
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.
1. Scope* C219 Terminology Relating to Hydraulic Cement
C305 Practice for Mechanical Mixing of Hydraulic Cement
1.1 This test method covers the determination of the time of
Pastes and Mortars of Plastic Consistency
setting of hydraulic-cement paste by means of the Gillmore
C511 Specification for Mixing Rooms, Moist Cabinets,
needles.
Moist Rooms, and Water Storage Tanks Used in the
1.2 The values stated in inch-pound units are to be regarded
Testing of Hydraulic Cements and Concretes
as standard. The values given in parentheses are mathematical
C670 Practice for Preparing Precision and Bias Statements
conversions to SI units that are provided for information only
for Test Methods for Construction Materials
and are not considered standard.
C1005 Specification for Reference Masses and Devices for
1.3 This standard does not purport to address all of the
Determining Mass and Volume for Use in the Physical
safety concerns, if any, associated with its use. It is the
Testing of Hydraulic Cements
responsibility of the user of this standard to establish appro-
D1193 Specification for Reagent Water
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
3. Terminology
Warning: Fresh hydraulic cementitious mixtures are caustic
3.1 Refer to Terminology C219 for definitions of terms.
and may cause chemical burns to skin and tissue upon
prolonged exposure. The use of gloves, protective clothing,
4. Summary of Test Method
and eye protection is recommended. Wash contact area with
4.1 Sufficient water is added to the cement that is being
copious amounts of water after contact. Wash eyes for a
tested to produce a paste of normal consistency.Aspecimen is
minimum of 15 min. Avoid exposure of the body to clothing
molded from this paste and is tested for time of setting by
saturated with the liquid phase of the unhardened material.
means of the Gillmore initial and final needles.The initial time
Remove contaminated clothing immediately after exposure.
of setting is the time elapsed between initial contact of cement
1.4 The text of this standard references notes and footnotes
and water and the time when the Gillmore Initial needle does
which provide explanatory material. These notes and footnotes
not leave a complete circular impression in the paste surface.
(excluding those in tables and figures) shall not be considered
The final time of setting is the time elapsed between initial
as requirements of the standard.
contact of cement and water and the time when the Gillmore
Final needle does not leave a complete circular impression in
2. Referenced Documents
2 the paste surface.
2.1 ASTM Standards:
C151 Test Method for Autoclave Expansion of Hydraulic
5. Significance and Use
Cement
5.1 The purpose of this test method is to establish whether
C183 Practice for Sampling and the Amount of Testing of
a cement complies with a specification limit on Gillmore time
Hydraulic Cement
of setting.
C187 Test Method for Normal Consistency of Hydraulic
Cement
6. Apparatus
6.1 Flat Trowel, having a sharpened straight-edged steel
1
This test method is under the jurisdiction ofASTM Committee C01 on Cement
blade 100 to 150 mm in length. The edges when placed on a
and is the direct responsibility of Subcommittee C01.30 on Time of Set
plane surface shall not depart from straightness by more than 1
CurrenteditionapprovedJune1,2008.PublishedJuly2008.Originallyapproved
mm.
in 1951. Last previous edition approved in 2007 as C266 – 07. DOI: 10.1520/
C0266-08.
6.2 Mixer, Bowl, Paddle, and Scraper, conforming to the
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
requirements of Practice C305.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6.3 Glass Graduates, 200 or 250 mL capacity, conforming
Standards volume information, refer to the standard’s Document Summary page on
to the requirements of Specification C1005.
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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C266–08
6.4 Mass Determining Devices, conforming to the require- sides tapering to a thin edge on a plane non-absorptive plate,
ments of Specification C1005. The devices for det
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:C266–07 Designation:C266–08
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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
1.1 Thistestmethodcoversthedeterminationofthetimeofsettingofhydraulic-cementpastebymeansoftheGillmoreneedles.
1.2The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
C 151 Test Method for Autoclave Expansion of Hydraulic Cement
C 183 Practice for Sampling and the Amount of Testing of Hydraulic Cement
C 187 Test Method for Normal Consistency of Hydraulic Cement
C 219 Terminology Relating to Hydraulic Cement
C 305 Practice for Mechanical Mixing of Hydraulic Cement Pastes and Mortars of Plastic Consistency
C 511 Specification for Mixing Rooms, Moist Cabinets, Moist Rooms, and Water Storage Tanks Used in the Testing of
Hydraulic Cements and Concretes
C 670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials
C 1005 Specification for Reference Masses and Devices for Determining Mass and Volume for Use in the Physical Testing of
Hydraulic Cements
D 1193 Specification for Reagent Water
3. Terminology
3.1 Refer to Terminology C 219 for definitions of terms.
4. Summary of Test Method
4.1Sufficient water is added to the cement that is being tested to produce a paste of normal consistency. A specimen is molded
from this paste and is tested for time of setting by means of the Gillmore initial and final needles. The initial time of setting is the
time required for the test specimen to bear the initial Gillmore needle without appreciable indentation, while the time required for
the test specimen to bear the final Gillmore needle without appreciable indentation is the final time of setting.
4.1 Sufficient water is added to the cement that is being tested to produce a paste of normal consistency.Aspecimen is molded
from this paste and is tested for time of setting by means of the Gillmore initial and final needles. The initial time of setting is the
1
This test method is under the jurisdiction of ASTM Committee C01 on Cement and is the direct responsibility of Subcommittee C01.30 on Time of Set
Current edition approved July 15, 2007. Published August 2007. Originally approved in 1951. Last previous edition approved in 2004 as C266–04.
Current edition approved June 1, 2008. Published July 2008. Originally approved in 1951. Last previous edition approved in 2007 as C 266 – 07.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For AnnualBookofASTM 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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
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C266–08
time elapsed between initial c
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