ASTM C191-03

Standard Test Method for Time of Setting of Hydraulic Cement by Vicat Needle

SCOPE
1.1 These methods determine the time of setting of hydraulic cement by means of the Vicat needle. Two test methods are given; Method A is the Reference Test Method using the manually operated standard Vicat apparatus, while Method B permits the use of an automatic Vicat machine that has, in accordance with the qualification requirements of this method, demonstrated acceptable performance.
1.2 The values stated in SI units are to be regarded as the standard. Values 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. See 1.4 for a specific warning statement.
1.4 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.
Note 1—For the method for determining the time of setting by Gillmore needles, see Test Method C266.

General Information

• Status: Historical
• Publication Date: 09-Jul-2003
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: C01 - Cement
• Drafting Committee: C01.30 - Time of Set

Relations

• Replaces: ASTM C191-01a - Standard Test Method for Time of Setting of Hydraulic Cement by Vicat Needle
• Effective Date: 10-Jul-2003
• Replaced By: ASTM C191-04 - Standard Test Method for Time of Setting of Hydraulic Cement by Vicat Needle
• Effective Date: 01-Jan-2004
• Referred By: ASTM D5759-12(2020) - Standard Guide for Characterization of Coal Fly Ash and Clean Coal Combustion Fly Ash for Potential Uses
• Effective Date: 10-Jul-2003
• Referred By: ASTM C1857/C1857M-19 - Standard Test Method for Evaluating the Adhesion (Pull-Off) Strength of Concrete Repair and Overlay Mortar
• Effective Date: 10-Jul-2003
• Referred By: ASTM C1222-23 - Standard Practice for Evaluation of Laboratories Testing Hydraulic Cement
• Effective Date: 10-Jul-2003
• Referred By: ASTM D8030/D8030M-23 - Standard Practice for Sample Preparation for GCCM
• Effective Date: 10-Jul-2003
• Referred By: ASTM C1708/C1708M-19 - Standard Test Methods for Self-leveling Mortars Containing Hydraulic Cements
• Effective Date: 10-Jul-2003
• Referred By: ASTM C887-20 - Standard Specification for Packaged, Dry, Combined Materials for Surface Bonding Mortar
• Effective Date: 10-Jul-2003
• Referred By: ASTM C150/C150M-22 - Standard Specification for Portland Cement
• Effective Date: 10-Jul-2003
• Referred By: ASTM C827/C827M-23 - Standard Test Method for Change in Height at Early Ages of Cylindrical Specimens of Cementitious Mixtures
• Effective Date: 10-Jul-2003
• Referred By: ASTM C953-17 - Standard Test Method for Time of Setting of Grouts for Preplaced-Aggregate Concrete in the Laboratory
• Effective Date: 10-Jul-2003
• Referred By: ASTM C1698-19 - Standard Test Method for Autogenous Strain of Cement Paste and Mortar
• Effective Date: 10-Jul-2003
• Referred By: ASTM C183/C183M-23 - Standard Practice for Sampling and the Amount of Testing of Hydraulic Cement
• Effective Date: 10-Jul-2003
• Referred By: ASTM C1157/C1157M-23 - Standard Performance Specification for Hydraulic Cement
• Effective Date: 10-Jul-2003
• Referred By: ASTM C595/C595M-23 - Standard Specification for Blended Hydraulic Cements
• Effective Date: 10-Jul-2003

Standards Content (Sample)

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.
American Association State
Designation: C 191 – 03 Highway and Transportation Officials Standard
AASHTO No.: T131
Standard Test Method for
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Time of Setting of Hydraulic Cement by Vicat Needle
This standard is issued under the fixed designation C 191; 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.
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1. Scope C 219 Terminology Relating to Hydraulic Cement
C 266 Test Method for Time of Setting of Hydraulic-
1.1 These methods determine the time of setting of hydrau-
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Cement Paste by Gillmore Needles
lic cement by means of the Vicat needle. Two test methods are
C 305 Practice for Mechanical Mixing of Hydraulic Cement
given; Method A is the Reference Test Method using the
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Pastes and Mortars of Plastic Consistency
manually operated standard Vicat apparatus, while Method B
C 490 Practice for Use of Apparatus for the Determination
permits the use of an automatic Vicat machine that has, in
of Length Change of Hardened Cement Paste, Mortar, and
accordance with the qualification requirements of this method,
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Concrete
demonstrated acceptable performance.
C 511 Specification for Moist Cabinets, Moist Rooms, and
1.2 The values stated in SI units are to be regarded as the
Water Storage Tanks Used in the Testing of Hydraulic
standard. Values in parentheses are for information only.
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Cements and Concretes
1.3 This standard does not purport to address all of the
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C 595 Specification for Blended Hydraulic Cements
safety concerns, if any, associated with its use. It is the
C 1005 Specification for Reference Masses and Devices for
responsibility of the user of this standard to establish appro-
Determining Mass and Volume for Use in the Physical
priate safety and health practices and determine the applica-
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Testing of Hydraulic Cements
bility of regulatory limitations prior to use. See 1.4 for a
C 1157 Performance Specification for Blended Hydraulic
specific warning statement.
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Cement
1.4 Warning—Fresh hydraulic cementitious mixtures are
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D 1193 Specification for Reagent Water
caustic 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 Definitions—The terms used in this test method are
copious amounts of water after contact. Wash eyes for a
defined in accordance with Terminology C 219.
minimum of 15 min. Avoid exposure of the body to clothing
saturated with the liquid phase of the unhardened material.
4. Summary of Test Method
2
Remove contaminated clothing immediately after exposure.
4.1 A paste that meets requirements for normal consistency,
NOTE 1—For the method for determining the time of setting by
as described in the Test Method C 187 is molded and placed in
Gillmore needles, see Test Method C 266.
a moist cabinet and allowed to start setting. Periodic penetra-
tion tests are performed on this paste by allowing a 1-mm Vicat
2. Referenced Documents
needle to settle into this paste. The time of setting is calculated
2.1 ASTM Standards:
as the difference between the time that a measurement of 25
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C 150 Specification for Portland Cement
mm penetration is measured and the time of the initial contact
C 151 Test Method for Autoclave Expansion of Portland
between the cement and water. The Vicat final time of setting
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Cement
is calculated as the difference between the time that a mea-
C 183 Practice for Sampling and the Amount of Testing of
surement of 3 mm or less is first measured and the time of the
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Hydraulic Cement
initial contact between the cement and water.
C 187 Test Method for Normal Consistency of Hydraulic
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Cement
5. Significance and Use
5.1 This test method provides a means of determining
compliance with a specification limit for Vicat time of setting.
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This method is under the jurisdiction of ASTM Committee C01 on Cement and
Refer to the appropriate specification for the cement to
is the direct responsibility of Subcommittee C01.30 on Time of Set.
determine if this test method is used for specification compli-
Current edition approved July 10, 2003. Published September 2003. Originally
approved in 1944. Last previous edition approved in 2001 as C 191 – 01a. ance.
2
Section on Safety, Manual of Cement Testing, Annual Book of ASTM
Standards, Vol 04.01.
3 4
Annual Book of ASTM Standards, Vol 04.01. Annual Book of ASTM Standards, Vol 11.01.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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