ASTM C1874-20
(Test Method)Standard Test Method for Measuring Rheological Properties of Cementitious Materials Using Coaxial Rotational Rheometer
Standard Test Method for Measuring Rheological Properties of Cementitious Materials Using Coaxial Rotational Rheometer
SIGNIFICANCE AND USE
5.1 Rheological properties provide information about the workability of cementitious paste or mortar. This test method may be used to measure flowability of a cement paste or the influence of a specific material or combination of materials on flowability.
5.2 As rheological properties are sensitive to sample heterogeneities, special care is needed using this procedure so that sedimentation, particle migration away from the spindle or slippage at the surface of the spindle and container, is avoided.
SCOPE
1.1 This test method is used to measure the rheological properties such as plastic viscosity and yield stress of cementitious materials with particles up to 1 mm in diameter.
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.
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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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: C1874 − 20
Standard Test Method for
Measuring Rheological Properties of Cementitious Materials
1
Using Coaxial Rotational Rheometer
This standard is issued under the fixed designation C1874; 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* C1738/C1738M Practice for High-Shear Mixing of Hydrau-
lic Cement Pastes
1.1 This test method is used to measure the rheological
C1749 GuideforMeasurementoftheRheologicalProperties
properties such as plastic viscosity and yield stress of cemen-
of Hydraulic Cementious Paste Using a Rotational Rhe-
titious materials with particles up to 1 mm in diameter.
ometer
1.2 The values stated in SI units are to be regarded as
standard. No other units of measurement are included in this
3. Terminology
standard.
3.1 Definitions:
1.3 This standard does not purport to address all of the
3.1.1 For definitions of terms used in this test method, refer
safety concerns, if any, associated with its use. It is the
to Terminology C125 and Terminology C219.
responsibility of the user of this standard to establish appro-
3.2 Definitions of Terms Specific to This Standard:
priate safety, health, and environmental practices and deter-
3.2.1 shear rate, n—the rate of change of the shear strain
mine the applicability of regulatory limitations prior to use.
with time.
1.4 This international standard was developed in accor- 3
3.2.1.1 Discussion—The shear strain (1) is the relative
dance with internationally recognized principles on standard-
in-plane displacement of two parallel layers in a material body
ization established in the Decision on Principles for the -1
divided by the separation distance, in units of s .
Development of International Standards, Guides and Recom-
3.2.2 shear stress, n—the component of stress that causes
mendations issued by the World Trade Organization Technical
successive parallel layers of a material body to move, in their
Barriers to Trade (TBT) Committee.
own planes (that is, plane of shear), relative to each other, in
units of Pa.
2. Referenced Documents
3.2.3 relative viscosity, n—the ratio between the viscosity of
2
2.1 ASTM Standards:
a material and the viscosity of a reference material as a
C125 Terminology Relating to Concrete and Concrete Ag-
function of shear rate, both viscosities measured using the
gregates
same rheometer and with the same procedure.
C219 Terminology Relating to Hydraulic and Other Inor-
ganic Cements
4. Summary of Test Method
C305 Practice for Mechanical Mixing of Hydraulic Cement
4.1 This method allows the measurement of the shear stress
Pastes and Mortars of Plastic Consistency
of cementitious paste or mortar, using a rotational rheometer
C1005 Specification for Reference Masses and Devices for
withvariousspindlegeometries.Theplasticviscosityandyield
Determining Mass and Volume for Use in the Physical
stress are determined per the Bingham model.
Testing of Hydraulic Cements
C1602/C1602M Specification for Mixing Water Used in the
4.2 As cementitious slurries are thixotropic, the shear his-
Production of Hydraulic Cement Concrete
tory has an impact on the rheological measurements; mixing
-1
the sample, for instance 200 s for 60 s, is needed to ensure
correct preparation of the sample, prior to the measurements.
1
This test method is under the jurisdiction ofASTM Committee C01 on Cement
4.3 This mixing procedure is followed by the measurements
and is the direct responsibility of Subcommittee C01.22 on Workability.
of the shear stress evolution as a function of the shear rate in
CurrenteditionapprovedJune1,2020.PublishedJuly2020.Originallyapproved
-1
the range of 0.1 to 50 s . Before the standardization of the
in 2019. Last previous edition approved in 2019 as C1874 – 19. DOI: 10.1520/
C1874-19.
2
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
3
Standards volume information, refer to the standard’s Document Summary page on The boldface numbers in parentheses refer to the list of references at the end of
the ASTM website. this standard.
*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 ----------------------
C1874 − 20
NOTE 2—The gap between the spindle and the container is calculated as
rheometer, the she
...
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: C1874 − 19 C1874 − 20
Standard Test Method for
Measuring the Rheological Properties of Cementitious
1
Materials Using a Coaxial Rotational Rheometer
This standard is issued under the fixed designation C1874; 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 Scope*
1.1 This test method is used to measure the rheological properties such as plastic viscosity and yield stress of cementitious
materials with particles up to 1 mm in diameter.
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.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
C125 Terminology Relating to Concrete and Concrete Aggregates
C219 Terminology Relating to Hydraulic and Other Inorganic Cements
C305 Practice for Mechanical Mixing of Hydraulic Cement Pastes and Mortars of Plastic Consistency
C1005 Specification for Reference Masses and Devices for Determining Mass and Volume for Use in the Physical Testing of
Hydraulic Cements
C1602/C1602M Specification for Mixing Water Used in the Production of Hydraulic Cement Concrete
C1738/C1738M Practice for High-Shear Mixing of Hydraulic Cement Pastes
C1749 Guide for Measurement of the Rheological Properties of Hydraulic Cementious Paste Using a Rotational Rheometer
3. Terminology
3.1 Definitions:
3.1.1 For definitions of terms used in this test method, refer to Terminology C125 and Terminology C219.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 shear rate, n—the rate of change of the shear strain with time.
3.2.1.1 Discussion—
3
The shear strain (1) is the relative in-plane displacement of two parallel layers in a material body divided by the separation
-1
distance, in units of s .
3.2.2 shear stress, n—Thethe component of stress that causes successive parallel layers of a material body to move, in their own
planes (that is, plane of shear), relative to each other, in units of Pa.
1
This test method is under the jurisdiction of ASTM Committee C01 on Cement and is the direct responsibility of Subcommittee C01.22 on Workability.
Current edition approved Dec. 15, 2019June 1, 2020. Published January 2020July 2020. Originally approved in 2019. Last previous edition approved in 2019 as
C1874 – 19. DOI: 10.1520/C1874-19.
2
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.
3
Alex Olivas, Michelle A. Helsel, Nicos Martys, Chiara F. Ferraris, Raissa Ferron, “Rheological Measurement of Suspensions Without Slippage: Experimental and Model”
NIST-TN 1946, Dec. 2016 - dx.doi.org/10.6028/NIST.TN.1946.The boldface numbers in parentheses refer to the list of references at the end of this standard.
*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 ----------------------
C1874 − 20
3.2.3 relative viscosity, n—the ratio between the viscosity of a material and the viscosity of a reference material as a function
of shear rate, both viscosities measured using the same rheometer and with the same procedure.
4. Summary of Test Method
4.1 This method allows the measurement of the shear stress of cementitious paste or mortar, using a rotational rheometer with
various spindle geometries. The plastic viscosity and yield stress are determined per the Bingham model.
4.2 As cementitious slurries are thixotropic, the shear history has an impact on the rheological measurements; mixing the
...
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