ASTM C596-23
(Test Method)Standard Test Method for Drying Shrinkage of Mortar Containing Hydraulic Cement
Standard Test Method for Drying Shrinkage of Mortar Containing Hydraulic Cement
SIGNIFICANCE AND USE
4.1 This test method establishes a selected set of conditions of temperature, relative humidity and rate of evaporation of the environment to which a mortar specimen of stated composition shall be subjected for a specified period of time during which its change in length is determined and designated “drying shrinkage.”
4.2 The drying shrinkage of mortar as determined by this test method has a linear relation to the drying shrinkage of concrete made with the same cement and exposed to the same drying conditions.4 Hence this test method may be used when it is desired to develop data on the effect of a hydraulic cement on the drying shrinkage of concrete made with that cement.
SCOPE
1.1 This test method determines the change in length on drying of mortar bars containing hydraulic cement and graded standard sand.
1.2 The values stated in SI units are to be regarded as standard. When combined standards are referenced, the selection of measurement system is at the user’s discretion subject to the requirements of the referenced 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 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: C596 − 23
Standard Test Method for
1
Drying Shrinkage of Mortar Containing Hydraulic Cement
This standard is issued under the fixed designation C596; 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* Pastes and Mortars of Plastic Consistency
C490/C490M Practice for Use of Apparatus for the Deter-
1.1 This test method determines the change in length on
mination of Length Change of Hardened Cement Paste,
drying of mortar bars containing hydraulic cement and graded
Mortar, and Concrete
standard sand.
C511 Specification for Mixing Rooms, Moist Cabinets,
1.2 The values stated in SI units are to be regarded as
Moist Rooms, and Water Storage Tanks Used in the
standard. When combined standards are referenced, the selec-
Testing of Hydraulic Cements and Concretes
tion of measurement system is at the user’s discretion subject
C670 Practice for Preparing Precision and Bias Statements
to the requirements of the referenced standard.
for Test Methods for Construction Materials
1.3 This standard does not purport to address all of the C778 Specification for Standard Sand
safety concerns, if any, associated with its use. It is the
C1005 Specification for Reference Masses and Devices for
responsibility of the user of this standard to establish appro- Determining Mass and Volume for Use in Physical Testing
priate safety, health, and environmental practices and deter-
of Hydraulic Cements
mine the applicability of regulatory limitations prior to use. C1437 Test Method for Flow of Hydraulic Cement Mortar
Warning—Fresh hydraulic cementitious mixtures are caustic
E177 Practice for Use of the Terms Precision and Bias in
and may cause chemical burns to skin and tissue upon ASTM Test Methods
2
prolonged exposure).
3. Terminology
1.4 This international standard was developed in accor-
dance with internationally recognized principles on standard-
3.1 The term “drying shrinkage” is defined as the decrease
ization established in the Decision on Principles for the
in length of the test specimen, where the decrease is caused by
Development of International Standards, Guides and Recom-
any factor other than externally applied forces under stated
mendations issued by the World Trade Organization Technical
conditions of temperature, relative humidity and evaporation
Barriers to Trade (TBT) Committee.
rate in the environment; the term includes the net effect of a
variety of phenomena tending to bring about both increases and
2. Referenced Documents
decreases in length during the period in which the test
3
specimens under consideration are stored in the environment
2.1 ASTM Standards:
and in which a number of processes, including hydration of the
C157/C157M Test Method for Length Change of Hardened
cement, are taking place at a variety of rates.
Hydraulic-Cement Mortar and Concrete
C219 Terminology Relating to Hydraulic and Other Inor-
3.2 Other terms used in this test method are defined in
ganic Cements
Terminology C219.
C305 Practice for Mechanical Mixing of Hydraulic Cement
4. Significance and Use
4.1 This test method establishes a selected set of conditions
1
This test method is under the jurisdiction of ASTM Committee C01 on Cement
of temperature, relative humidity and rate of evaporation of the
and is the direct responsibility of Subcommittee C01.31 on Volume Change.
environment to which a mortar specimen of stated composition
Current edition approved Dec. 1, 2023. Published December 2023. Originally
approved in 1967. Last previous edition approved in 2018 as C596 – 18. DOI:
shall be subjected for a specified period of time during which
10.1520/C0596-23.
its change in length is determined and designated “drying
2
Section on Safety, Manual of Cement Testing, Annual Book of Standards,Vol
shrinkage.”
04.01.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.2 The drying shrinkage of mortar as determined by this
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
test method has a linear relation to the drying shrinkage of
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. concrete made with the same cement and exposed to the same
*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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C596
...
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: C596 − 18 C596 − 23
Standard Test Method for
1
Drying Shrinkage of Mortar Containing Hydraulic Cement
This standard is issued under the fixed designation C596; 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 determines the change in length on drying of mortar bars containing hydraulic cement and graded standard
sand.
1.2 The values stated in SI units are to be regarded as standard. When combined standards are referenced, the selection of
measurement system is at the user’s discretion subject to the requirements of the referenced 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).
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
3
2.1 ASTM Standards:
C157/C157M Test Method for Length Change of Hardened Hydraulic-Cement Mortar and Concrete
C219 Terminology Relating to Hydraulic and Other Inorganic Cements
C305 Practice for Mechanical Mixing of Hydraulic Cement Pastes and Mortars of Plastic Consistency
C490/C490M Practice for Use of Apparatus for the Determination of Length Change of Hardened Cement Paste, Mortar, and
Concrete
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
C1005 Specification for Reference Masses and Devices for Determining Mass and Volume for Use in Physical Testing of
Hydraulic Cements
C1437 Test Method for Flow of Hydraulic Cement Mortar
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
1
This test method is under the jurisdiction of ASTM Committee C01 on Cement and is the direct responsibility of Subcommittee C01.31 on Volume Change.
Current edition approved Dec. 1, 2018Dec. 1, 2023. Published December 2018December 2023. Originally approved in 1967. Last previous edition approved in 20172018
as C596 – 09 (2017).C596 – 18. DOI: 10.1520/C0596-18.10.1520/C0596-23.
2
Section on Safety, Manual of Cement Testing, Annual Book of 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 ----------------------
C596 − 23
3. Terminology
3.1 The term “drying shrinkage” is defined as the decrease in length of the test specimen, where the decrease is caused by any
factor other than externally applied forces under stated conditions of temperature, relative humidity and evaporation rate in the
environment; the term includes the net effect of a variety of phenomena tending to bring about both increases and decreases in
length during the period in which the test specimens under consideration are stored in the environment and in which a number of
processes, including hydration of the cement, are taking place at a variety of rates.
3.2 Other terms used in this test method are defined in Terminology C219.
4. Significance and Use
4.1 This test method establishes a selected set of conditions of temperature, relative humidity and rate of evaporation of the
environment to which a mortar specimen of stated composition shall be subjected for a specified period of time during which its
change in length is determined and designated “drying shri
...
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