ASTM C191-21
Standard Test Methods for Time of Setting of Hydraulic Cement by Vicat Needle

Standard No.

ASTM C191-21

Release Date

2021

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM C191-21

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; Test Method A is the Reference Test Method using the manually operated standard Vicat apparatus, while Test 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, 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 1.4 The text of these test methods reference 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 test method for determining the time of setting by Gillmore needles, see Test Method C266. 1.5 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.

ASTM C191-21 Referenced Document

• ASTM C1005 Standard Specification for Reference Masses and Devices for Determining Mass and Volume for Use in Physical Testing of Hydraulic Cements
• ASTM C1157/C1157M Standard Performance Specification for Hydraulic Cement*， 2023-09-01 Update
• ASTM C150/C150M Standard Specification for Portland Cement*， 2022-07-01 Update
• ASTM C151/C151M Standard Test Method for Autoclave Expansion of Hydraulic Cement*， 2023-12-01 Update
• ASTM C183/C183M Standard Practice for Sampling and the Amount of Testing of Hydraulic Cement*， 2023-06-01 Update
• ASTM C187 Standard Test Method for Normal Consistency of Hydraulic Cement
• ASTM C219 Standard Terminology Relating to Hydraulic and Other Inorganic Cements*， 2024-04-01 Update
• ASTM C266 Standard Test Method for Time of Setting of Hydraulic-Cement Paste by Gillmore Needles
• ASTM C305 Standard Practice for Mechanical Mixing of Hydraulic Cement Pastes and Mortars of Plastic Consistency
• ASTM C511 Standard Specification for Moist Cabinets, Moist Rooms, and Water Storage Tanks Used in the Testing of Hydraulic Cements and Concretes
• ASTM C595/C595M Standard Specification for Blended Hydraulic Cements*， 2023-07-15 Update

ASTM C191-21 history

• 2021 ASTM C191-21 Standard Test Methods for Time of Setting of Hydraulic Cement by Vicat Needle
• 2019 ASTM C191-19 Standard Test Methods for Time of Setting of Hydraulic Cement by Vicat Needle
• 2018 ASTM C191-18a Standard Test Methods for Time of Setting of Hydraulic Cement by Vicat Needle
• 2018 ASTM C191-18 Standard Test Methods for Time of Setting of Hydraulic Cement by Vicat Needle
• 2013 ASTM C191-13 Standard Test Methods for Time of Setting of Hydraulic Cement by Vicat Needle
• 2008 ASTM C191-08 Standard Test Methods for Time of Setting of Hydraulic Cement by Vicat Needle
• 2007 ASTM C191-07 Standard Test Methods for Time of Setting of Hydraulic Cement by Vicat Needle
• 2004 ASTM C191-04b Standard Test Method for Time of Setting of Hydraulic Cement by Vicat Needle
• 2004 ASTM C191-04a Standard Test Method for Time of Setting of Hydraulic Cement by Vicat Needle
• 2004 ASTM C191-04 Standard Test Method for Time of Setting of Hydraulic Cement by Vicat Needle
• 2003 ASTM C191-03 Standard Test Method for Time of Setting of Hydraulic Cement by Vicat Needle
• 2001 ASTM C191-01a Standard Test Method for Time of Setting of Hydraulic Cement by Vicat Needle
• 2001 ASTM C191-01 Standard Test Method for Time of Setting of Hydraulic Cement by Vicat Needle
• 1999 ASTM C191-99 Standard Test Method for Time of Setting of Hydraulic Cement by Vicat Needle