ASTM C191-13

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

SIGNIFICANCE AND USE
5.1 This test method provides a means of determining compliance with a specification limit for Vicat time of setting. Refer to the appropriate specification for the cement to determine if this test method is used for specification compliance.  
5.2 Time of setting measured by this method will not necessarily provide the same results as the time of setting of hydraulic cement paste measured by other methods, or the time of setting of mortar or concrete.
SCOPE
1.1 These test 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 standard. No other units of measurement are included in this 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.2  
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.Note 1—For the method for determining the time of setting by Gillmore needles, see Test Method C266.

General Information

• Status: Historical
• Publication Date: 30-Nov-2013
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: C01 - Cement
• Drafting Committee: C01.30 - Time of Set

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
Designation: C191 − 13 American Association State
Highway and Transportation Officials Standard
AASHTO No.: T131
Standard Test Methods for
1
Time of Setting of Hydraulic Cement by Vicat Needle
This standard is issued under the fixed designation C191; 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* C183 Practice for Sampling and the Amount of Testing of
Hydraulic Cement
1.1 These test methods determine the time of setting of
C187 Test Method for Amount of Water Required for Nor-
hydraulic cement by means of the Vicat needle. Two test
mal Consistency of Hydraulic Cement Paste
methods are given; Method A is the Reference Test Method
C219 Terminology Relating to Hydraulic Cement
using the manually operated standard Vicat apparatus, while
C266 Test Method for Time of Setting of Hydraulic-Cement
Method B permits the use of an automatic Vicat machine that
Paste by Gillmore Needles
has, in accordance with the qualification requirements of this
C305 Practice for Mechanical Mixing of Hydraulic Cement
method, demonstrated acceptable performance.
Pastes and Mortars of Plastic Consistency
1.2 The values stated in SI units are to be regarded as
C511 Specification for Mixing Rooms, Moist Cabinets,
standard. No other units of measurement are included in this
Moist Rooms, and Water Storage Tanks Used in the
standard.
Testing of Hydraulic Cements and Concretes
1.3 This standard does not purport to address all of the C595 Specification for Blended Hydraulic Cements
C1005 Specification for Reference Masses and Devices for
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- Determining Mass and Volume for Use in the Physical
Testing of Hydraulic Cements
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. C1157 Performance Specification for Hydraulic Cement
D1193 Specification for Reagent Water
Warning: Fresh hydraulic cementitious mixtures are caus-
tic and may cause chemical burns to skin and tissue upon
2
3. Terminology
prolonged exposure.
3.1 Definitions—The terms used in this test method are
1.4 The text of this standard references notes and footnotes
which provide explanatory material. These notes and footnotes defined in accordance with Terminology C219.
(excluding those in tables and figures) shall not be considered
as requirements of the standard. 4. Summary of Test Method
NOTE 1—For the method for determining the time of setting by
4.1 A paste that is proportioned and mixed to normal
Gillmore needles, see Test Method C266.
consistency, as described in the Test Method C187, is molded
and placed in a moist cabinet and allowed to start setting.
2. Referenced Documents
Periodic penetration tests are performed on this paste by
3
2.1 ASTM Standards:
allowing a 1-mm Vicat needle to settle into this paste. The
C150 Specification for Portland Cement
Vicat initial time of setting is the time elapsed between the
C151 Test Method for Autoclave Expansion of Hydraulic
initial contact of cement and water and the time when the
Cement
penetration is measured or calculated to be 25 mm. The Vicat
final time of setting is the time elapsed between initial contact
of cement and water and the time when the needle does not
1
These test methods are under the jurisdiction of ASTM Committee C01 on
leave a complete circular impression in the paste surface.
Cement and is the direct responsibility of Subcommittee C01.30 on Time of Set.
Current edition approved Dec. 1, 2013. Published January 2014. Originally
approved in 1944. Last previous edition approved in 2008 as C191 – 08. DOI:
5. Significance and Use
10.1520/C0191-13.
2
5.1 This test method provides a means of determining
Section on Safety, Manual of Cement Testing, Annual Book of ASTM
Standards, Vol 04.01.
compliance with a specification limit for Vicat time of setting.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Refer to the appropriate specification for the cement to
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
determine if this test method is used for specification compli-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. ance.
*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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C191 − 13
5.2 Time of setting measured by this method will not 8. Sampling
necessarily pr
...

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: C191 − 08 C191 − 13 American Association State
Highway and Transportation Officials Standard
AASHTO No.: T131
Standard Test Methods for
1
Time of Setting of Hydraulic Cement by Vicat Needle
This standard is issued under the fixed designation C191; 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 These test 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 standard. No other units of measurement are included in this 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. See 1.4 for a specific warning statement.
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.
WarningWarning:—Fresh 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
2
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.
NOTE 1—For the method for determining the time of setting by Gillmore needles, see Test Method C266.
2. Referenced Documents
3
2.1 ASTM Standards:
C150 Specification for Portland Cement
C151 Test Method for Autoclave Expansion of Hydraulic Cement
C183 Practice for Sampling and the Amount of Testing of Hydraulic Cement
C187 Test Method for Amount of Water Required for Normal Consistency of Hydraulic Cement Paste
C219 Terminology Relating to Hydraulic Cement
C266 Test Method for Time of Setting of Hydraulic-Cement Paste by Gillmore Needles
C305 Practice for Mechanical Mixing of Hydraulic Cement Pastes and Mortars of Plastic Consistency
C511 Specification for Mixing Rooms, Moist Cabinets, Moist Rooms, and Water Storage Tanks Used in the Testing of Hydraulic
Cements and Concretes
C595 Specification for Blended Hydraulic Cements
C1005 Specification for Reference Masses and Devices for Determining Mass and Volume for Use in the Physical Testing of
Hydraulic Cements
C1157 Performance Specification for Hydraulic Cement
D1193 Specification for Reagent Water
1
These test methods are 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 June 1, 2008Dec. 1, 2013. Published July 2008January 2014. Originally approved in 1944. Last previous edition approved in 20072008 as
C191 – 07.C191 – 08. DOI: 10.1520/C0191-08.10.1520/C0191-13.
2
Section on Safety, Manual of Cement Testing, Annual Book of ASTM Standards, Vol 04.01.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM 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

---------------------- Page: 1 ----------------------
C191 − 13
3. Terminology
3.1 Definitions—The terms used in this test method are defined in accordance with Terminology C219.
4. Summary of Test Metho
...