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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.

General Information

Status
Historical
Publication Date
09-Jan-1999
ICS
91.100.10 - Cement. Gypsum. Lime. Mortar
Technical Committee
C01 - Cement
Drafting Committee
C01.30 - Time of Set
Current Stage
Ref Project

Relations

Replaced By
ASTM C266-03 - Standard Test Method for Time of Setting of Hydraulic-Cement Paste by Gillmore Needles
Effective Date
01-Nov-2003
Referred By
ASTM C1222-23 - Standard Practice for Evaluation of Laboratories Testing Hydraulic Cement
Effective Date
10-Jan-1999
Referred By
ASTM C688-22 - Standard Specification for Functional Additions for Use in Hydraulic Cements
Effective Date
10-Jan-1999
Referred By
ASTM C191-21 - Standard Test Methods for Time of Setting of Hydraulic Cement by Vicat Needle
Effective Date
10-Jan-1999
Referred By
ASTM C1707-18 - Standard Specification for Pozzolanic Hydraulic Lime for Structural Purposes
Effective Date
10-Jan-1999
Referred By
ASTM C150/C150M-22 - Standard Specification for Portland Cement
Effective Date
10-Jan-1999
Referred By
ASTM C91/C91M-23 - Standard Specification for Masonry Cement
Effective Date
10-Jan-1999
Referred By
ASTM C1328/C1328M-23 - Standard Specification for Plastic (Stucco) Cement
Effective Date
10-Jan-1999
Referred By
ASTM C1329/C1329M-23 - Standard Specification for Mortar Cement
Effective Date
10-Jan-1999
Referred By
ASTM D5050-08(2023) - Standard Guide for Commercial Use of Lime Kiln Dusts and Portland Cement Kiln Dusts
Effective Date
10-Jan-1999
Referred By
ASTM C183/C183M-23 - Standard Practice for Sampling and the Amount of Testing of Hydraulic Cement
Effective Date
10-Jan-1999

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ASTM C266-99 - Standard Test Method for Time of Setting of Hydraulic-Cement Paste by Gillmore NeedlesASTM C266-99 - Standard Test Method for Time of Setting of Hydraulic-Cement Paste by Gillmore Needles
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ASTM C266-99 - Standard Test Method for Time of Setting of Hydraulic-Cement Paste by Gillmore Needles
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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.
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
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 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
Hydraulic Cements
needles.
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
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.)
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
Cement
requirements of Practice C 305.
C 305 Practice for Mechanical Mixing of Hydraulic Cement 5.3 Glass Graduates, conforming to the requirements of
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.
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-
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
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.
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
...

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This test method covers the standard procedure for determination of length changes of expansive cement mortar, while under restraint, due to the development of internal forces resulting from hydration of the cement. The test apparatus is comprised of the following: molds for casting test specimens; restraining cage which consists of a threaded steel rod with steel end plates held in place by cap nuts for corrosion prevention; length comparator; tamper which shall be made of nonabsorptive, nonabrasive material such as medium-hard rubber or seasoned oak wood; device for demolding specimens; weights and weighing devices; glass graduates to measure the mixing water in a single operation; an electrically driven mechanical mixer equipped with paddle and mixing bowl; and trowel which shall have a steel blade with straight edges. The sand to be used shall comply with the graded sand requirement and shall be handled in such a manner as to prevent segregation. Details on preparation and assembly of specimen molds and restraining cage, proportioning and mixing of mortars, molding, and curing of specimens are discussed. The expansion and shrinkage of the test specimens at any age shall be calculated and the length-change data, expressed as linear expansion or contraction based on the length of the specimen at any time of molding, shall be reported. Bias and precision in the batch, single, and multi-laboratory operation shall also be identified.
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1.1 This test method covers the determination of length changes of expansive cement mortar, while under restraint, due to the development of internal forces resulting from hydration of the cement.  
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SIGNIFICANCE AND USE
4.1 This test method establishes a selected set of conditions of temperature, relative humidity and rate of evaporation of the environment to which a mortar specimen of stated composition shall be subjected for a specified period of time during which its change in length is determined and designated “drying shrinkage.”  
4.2 The drying shrinkage of mortar as determined by this test method has a linear relation to the drying shrinkage of concrete made with the same cement and exposed to the same drying conditions.4 Hence this test method may be used when it is desired to develop data on the effect of a hydraulic cement on the drying shrinkage of concrete made with that cement.
SCOPE
1.1 This test method determines the change in length on drying of mortar bars containing hydraulic cement and graded standard sand.  
1.2 The values stated in SI units are to be regarded as standard. When combined standards are referenced, the selection of measurement system is at the user’s discretion subject to the requirements of the referenced 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, health, and environmental 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).2  
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Standard Test Method for Autoclave Expansion of Hydraulic Cement

SIGNIFICANCE AND USE
4.1 The autoclave expansion test provides an index of potential delayed expansion caused by the hydration of CaO or MgO, or both, when present in hydraulic cement.3
SCOPE
1.1 This test method covers determination of the expansion of a hardened cement paste when exposed to the autoclave conditions in this method.  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific precaution statements, see the section on Safety Precautions.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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