ASTM C807-21
(Test Method)Standard Test Method for Time of Setting of Hydraulic Cement Mortar by Modified Vicat Needle
Standard Test Method for Time of Setting of Hydraulic Cement Mortar by Modified Vicat Needle
SIGNIFICANCE AND USE
5.1 The purpose of this test method is to establish whether or not a cement complies with a specification limit on time of setting. It has been found to be particularly applicable for the determination of the setting time of expansive cements (see Specification C845/C845M).
SCOPE
1.1 This test method covers the determination of the time of setting of hydraulic cement mortar by means of the modified Vicat needle.
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 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.
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.
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Standards Content (Sample)
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.
Designation:C807 −21
Standard Test Method for
Time of Setting of Hydraulic Cement Mortar by Modified
1
Vicat Needle
This standard is issued under the fixed designation C807; 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/C183M Practice for Sampling and the Amount of
Testing of Hydraulic Cement
1.1 This test method covers the determination of the time of
C187 Test Method for Amount of Water Required for Nor-
setting of hydraulic cement mortar by means of the modified
mal Consistency of Hydraulic Cement Paste
Vicat needle.
C219 Terminology Relating to Hydraulic and Other Inor-
1.2 The values stated in SI units are to be regarded as
ganic Cements
standard. No other units of measurement are included in this
C305 Practice for Mechanical Mixing of Hydraulic Cement
standard.
Pastes and Mortars of Plastic Consistency
1.3 This standard does not purport to address all of the
C511 Specification for Mixing Rooms, Moist Cabinets,
safety concerns, if any, associated with its use. It is the Moist Rooms, and Water Storage Tanks Used in the
responsibility of the user of this standard to establish appro-
Testing of Hydraulic Cements and Concretes
priate safety, health, and environmental practices and deter- C670 Practice for Preparing Precision and Bias Statements
mine the applicability of regulatory limitations prior to use.
for Test Methods for Construction Materials
Warning—Fresh hydraulic cementitious mixtures are caustic C778 Specification for Standard Sand
and may cause chemical burns to skin and tissue upon
C845/C845M Specification for Expansive Hydraulic Ce-
2
prolonged exposure. ) ment
1.4 The text of this standard references notes and footnotes
C1005 Specification for Reference Masses and Devices for
which provide explanatory material. These notes and footnotes DeterminingMassandVolumeforUseinPhysicalTesting
(excluding those in tables and figures) shall not be considered
of Hydraulic Cements
as requirements of the standard.
3. Terminology
1.5 This international standard was developed in accor-
dance with internationally recognized principles on standard-
3.1 Definitions:
ization established in the Decision on Principles for the
3.1.1 For definitions of terms used in this test method, refer
Development of International Standards, Guides and Recom-
to Terminology C219.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
4. Summary of Test Method
4.1 Amortar is prepared with the cement to be tested, using
2. Referenced Documents
stipulated quantities of cement and water, and sufficient stan-
3
2.1 ASTM Standards:
dard sand to produce a required consistency as determined by
C109/C109M Test Method for Compressive Strength of
a stipulated penetration using the plunger of the modifiedVicat
Hydraulic Cement Mortars (Using 2-in. or [50 mm] Cube
apparatus. Mortar of the proper consistency is then tested for
Specimens)
time of setting, using the needle of the modified Vicat
apparatus for the determination of a stipulated penetration.The
time required to obtain the stipulated penetration of the
1
This test method is under the jurisdiction ofASTM Committee C01 on Cement
modified Vicat needle is the time of setting.
and is the direct responsibility of Subcommittee C01.30 on Time of Set.
Current edition approved Oct. 1, 2021. Published November 2021. Originally
approved in 1975. Last previous edition approved in 2020 as C807 – 20. DOI:
5. Significance and Use
10.1520/C0807-21.
2
5.1 The purpose of this test method is to establish whether
See the section on Safety, Manual of Cement Testing, Annual Book of ASTM
Standards, Vol 04.01.
or not a cement complies with a specification limit on time of
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
setting. It has been found to be particularly applicable for the
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
determination of the setting time of expansive cements (see
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. Specification C845/C845M).
*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 ----------------------
C807−21
6. Apparatus tency specified below under “Test for Consistency” in accor-
dance with the mortar mi
...
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: C807 − 20 C807 − 21
Standard Test Method for
Time of Setting of Hydraulic Cement Mortar by Modified
1
Vicat Needle
This standard is issued under the fixed designation C807; 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 This test method covers the determination of the time of setting of hydraulic cement mortar by means of the modified Vicat
needle.
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
2
to skin and tissue upon prolonged exposure. )(Warning—Fresh hydraulic cementitious mixtures are caustic and may cause
chemical burns to skin and tissue upon prolonged 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.
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.
2. Referenced Documents
3
2.1 ASTM Standards:
C109/C109M Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or [50 mm] Cube Specimens)
C183/C183M 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 and Other Inorganic Cements
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
C670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials
C778 Specification for Standard Sand
C845/C845M Specification for Expansive Hydraulic Cement
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 Oct. 1, 2020Oct. 1, 2021. Published October 2020November 2021. Originally approved in 1975. Last previous edition approved in 20182020
as C807 – 18.C807 – 20. DOI: 10.1520/C0807-20.10.1520/C0807-21.
2
See the 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 service@astm.org. 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 ----------------------
C807 − 21
C1005 Specification for Reference Masses and Devices for Determining Mass and Volume for Use in Physical Testing of
Hydraulic Cements
D1193 Specification for Reagent Water
3. Terminology
3.1 Definitions:
3.1.1 Terms For definitions of terms used in this standard are defined intest method, refer to Terminology C219.
4. Summary of Test Method
4.1 A mortar is prepared with the cement to be tested, using stipulated quantities of cement and water, and sufficient standard sand
to produce a required consistency as determined by a stipulated penetration using the plunger of the modified Vicat apparatus.
Mortar of the proper consistency is then tested for time of setting, using the needle of the modified Vicat apparatus for the
determination of a stipulated penetration. The time required to obtain the stipulated penetration of the modified Vicat needle is the
time of setting.
5. Significa
...
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