ASTM C531-18

Standard Test Method for Linear Shrinkage and Coefficient of Thermal Expansion of Chemical-Resistant Mortars, Grouts, Monolithic Surfacings, and Polymer Concretes

SIGNIFICANCE AND USE
4.1 This test method offers a means of comparing the relative linear shrinkage and coefficient of thermal expansion.  
4.1.1 The material to be tested is placed in the mold in a fluid or plastic state. As the material makes a transition to a solid state, it adheres to and captures the end studs.  
4.1.2 The linear shrinkage measured is the change in length that occurs after the material is rigid enough and strong enough to move the studs.  
4.2 This test method can be used for research purposes to provide information on linear changes taking place in the test materials. Other dimensional changes may occur that do not manifest themselves as changes in length.
SCOPE
1.1 This test method covers the measurement of the linear shrinkage during setting and curing and the coefficient of thermal expansion of chemical-resistant mortars, grouts, monolithic surfacings, and polymer concretes.  
1.2 A bar of square cross-section is cast to a prescribed length in a mold that holds measuring studs that are captured in the ends of the finished casting.  
1.2.1 The change in length after curing is measured and used to calculate shrinkage.
Note 1: Shrinkage determinations should not be made on sulfur mortars, since this test method cannot truly reflect the overall linear shrinkage of a sulfur mortar.  
1.2.2 The change in length at a specific elevated temperature is measured and used to calculate the coefficient of thermal expansion.  
1.3 This test method is limited to materials with aggregate size of 0.25 in. (6 mm) or less.  
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.5 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.  
1.6 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.

General Information

• Status: Historical
• Publication Date: 30-Jun-2018
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.46 - Industrial Protective Coatings

Relations

• Replaces: ASTM C531-00(2012) - Standard Test Method for Linear Shrinkage and Coefficient of Thermal Expansion of Chemical-Resistant Mortars, Grouts, Monolithic Surfacings, and Polymer Concretes
• Effective Date: 01-Jul-2018
• Replaced By: ASTM C531-18(2023) - Standard Test Method for Linear Shrinkage and Coefficient of Thermal Expansion of Chemical-Resistant Mortars, Grouts, Monolithic Surfacings, and Polymer Concretes
• Effective Date: 01-Oct-2023
• Refers: ASTM C904-01(2018) - Standard Terminology Relating to Chemical-Resistant Nonmetallic Materials
• Effective Date: 01-Nov-2018
• Refers: ASTM E177-14 - Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
• Effective Date: 01-May-2014
• Refers: ASTM E177-13 - Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
• Effective Date: 01-May-2013
• Refers: ASTM E691-13 - Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
• Effective Date: 01-May-2013
• Refers: ASTM C904-01(2012) - Standard Terminology Relating to Chemical-Resistant Nonmetallic Materials
• Effective Date: 01-Aug-2012
• Refers: ASTM E691-11 - Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
• Effective Date: 01-Nov-2011
• Refers: ASTM E177-10 - Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
• Effective Date: 01-Oct-2010
• Refers: ASTM E177-08 - Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
• Effective Date: 01-Oct-2008
• Refers: ASTM E691-08 - Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
• Effective Date: 01-Oct-2008
• Refers: ASTM C490-07 - Standard Practice for Use of Apparatus for the Determination of Length Change of Hardened Cement Paste, Mortar, and Concrete
• Effective Date: 01-Jun-2007
• Refers: ASTM E177-06b - Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
• Effective Date: 15-Nov-2006
• Refers: ASTM E177-06a - Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
• Effective Date: 01-Nov-2006
• Refers: ASTM E691-05 - Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
• Effective Date: 01-Nov-2005

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: C531 − 18
Standard Test Method for
Linear Shrinkage and Coefficient of Thermal Expansion of
Chemical-Resistant Mortars, Grouts, Monolithic Surfacings,
1
and Polymer Concretes
This standard is issued under the fixed designation C531; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
1.1 This test method covers the measurement of the linear
shrinkage during setting and curing and the coefficient of
2. Referenced Documents
thermalexpansionofchemical-resistantmortars,grouts,mono-
2
lithic surfacings, and polymer concretes. 2.1 ASTM Standards:
C287Specification for Chemical-Resistant Sulfur Mortar
1.2 A bar of square cross-section is cast to a prescribed
C490PracticeforUseofApparatusfortheDeterminationof
lengthinamoldthatholdsmeasuringstudsthatarecapturedin
Length Change of Hardened Cement Paste, Mortar, and
the ends of the finished casting.
Concrete
1.2.1 The change in length after curing is measured and
C904Terminology Relating to Chemical-Resistant Nonme-
used to calculate shrinkage.
tallic Materials
NOTE 1—Shrinkage determinations should not be made on sulfur
E177Practice for Use of the Terms Precision and Bias in
mortars, since this test method cannot truly reflect the overall linear
ASTM Test Methods
shrinkage of a sulfur mortar.
E691Practice for Conducting an Interlaboratory Study to
1.2.2 Thechangeinlengthataspecificelevatedtemperature
Determine the Precision of a Test Method
is measured and used to calculate the coefficient of thermal
expansion.
3. Terminology
1.3 This test method is limited to materials with aggregate
3.1 Definitions—For definitions of terms used in this test
size of 0.25 in. (6 mm) or less.
method, see Terminology C904.
1.4 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical
4. Significance and Use
conversions to SI units that are provided for information only
4.1 This test method offers a means of comparing the
and are not considered standard.
relative linear shrinkage and coefficient of thermal expansion.
1.5 This standard does not purport to address all of the
4.1.1 The material to be tested is placed in the mold in a
safety concerns, if any, associated with its use. It is the
fluid or plastic state. As the material makes a transition to a
responsibility of the user of this standard to establish appro-
solid state, it adheres to and captures the end studs.
priate safety, health, and environmental practices and deter-
4.1.2 The linear shrinkage measured is the change in length
mine the applicability of regulatory limitations prior to use.
thatoccursafterthematerialisrigidenoughandstrongenough
1.6 This international standard was developed in accor-
to move the studs.
dance with internationally recognized principles on standard-
4.2 This test method can be used for research purposes to
ization established in the Decision on Principles for the
provide information on linear changes taking place in the test
Development of International Standards, Guides and Recom-
materials. Other dimensional changes may occur that do not
manifest themselves as changes in length.
1
This test method is under the jurisdiction of ASTM Committee D01 on Paint
and Related Coatings, Materials, andApplications and is the direct responsibility of
2
Subcommittee D01.46 on Industrial Protective Coatings. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved July 1, 2018. Published November 2018. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approved in 1963. Last previous edition approved in 2012 as C531–00 (2012). Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/C0531-18. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C531 − 18
5. Apparatus 6.4.4 In assembling the mold, the end blocks must move
freely in the mold before securing to the mold with machine
5.1 Weighing Equipment, shall be capable of weighing
screws.
materials or specimens to 60.3% accuracy.
6.4.5 Measure the measuring studs with micrometers and
5.2 Equipment for Mixi
...

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: C531 − 00 (Reapproved 2012) C531 − 18
Standard Test Method for
Linear Shrinkage and Coefficient of Thermal Expansion of
Chemical-Resistant Mortars, Grouts, Monolithic Surfacings,
1
and Polymer Concretes
This standard is issued under the fixed designation C531; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope
1.1 This test method covers the measurement of the linear shrinkage during setting and curing and the coefficient of thermal
expansion of chemical-resistant mortars, grouts, monolithic surfacings, and polymer concretes.
1.2 A bar of square cross-section is cast to a prescribed length in a mold that holds measuring studs that are captured in the ends
of the finished casting.
1.2.1 The change in length after curing is measured and used to calculate shrinkage.
NOTE 1—Shrinkage determinations should not be made on sulfur mortars, since this test method cannot truly reflect the overall linear shrinkage of a
sulfur mortar.
1.2.2 The change in length at a specific elevated temperature is measured and used to calculate the coefficient of thermal
expansion.
1.3 This test method is limited to materials with aggregate size of 0.25 in. (6 mm) or less.
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.5 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.6 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:
C287 Specification for Chemical-Resistant Sulfur Mortar
C490 Practice for Use of Apparatus for the Determination of Length Change of Hardened Cement Paste, Mortar, and Concrete
C904 Terminology Relating to Chemical-Resistant Nonmetallic Materials
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
3. Terminology
3.1 Definitions—For definitions of terms used in this test method, see Terminology C904.
4. Significance and Use
4.1 This test method offers a means of comparing the relative linear shrinkage and coefficient of thermal expansion.
1
This test method is under the jurisdiction of ASTM Committee D01 on Paint and Related Coatings, Materials, and Applications and is the direct responsibility of
Subcommittee D01.46 on Industrial Protective Coatings.
Current edition approved Aug. 1, 2012July 1, 2018. Published September 2012November 2018. Originally approved in 1963. Last previous edition approved in 20052012
as C531 – 00 (2005).(2012). DOI: 10.1520/C0531-00R12.10.1520/C0531-18.
2
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’sstandard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C531 − 18
4.1.1 The material to be tested is placed in the mold in a fluid or plastic state. As the material makes a transition to a solid state,
it adheres to and captures the end studs.
4.1.2 The linear shrinkage measured is the change in length that occurs after the material is rigid enough and strong enough to
move the studs.
4.2 This test method can be used for research purposes to provide information on linear changes taking place in the test
materials. Other dimensional changes may occur that do not manifest themselves as changes in length.
5. Apparatus
5.1 Weighing Equipment, s
...

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: C531 − 18
Standard Test Method for
Linear Shrinkage and Coefficient of Thermal Expansion of
Chemical-Resistant Mortars, Grouts, Monolithic Surfacings,
1
and Polymer Concretes
This standard is issued under the fixed designation C531; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
1.1 This test method covers the measurement of the linear
shrinkage during setting and curing and the coefficient of
2. Referenced Documents
thermal expansion of chemical-resistant mortars, grouts, mono-
2
lithic surfacings, and polymer concretes.
2.1 ASTM Standards:
C287 Specification for Chemical-Resistant Sulfur Mortar
1.2 A bar of square cross-section is cast to a prescribed
C490 Practice for Use of Apparatus for the Determination of
length in a mold that holds measuring studs that are captured in
Length Change of Hardened Cement Paste, Mortar, and
the ends of the finished casting.
Concrete
1.2.1 The change in length after curing is measured and
C904 Terminology Relating to Chemical-Resistant Nonme-
used to calculate shrinkage.
tallic Materials
NOTE 1—Shrinkage determinations should not be made on sulfur
E177 Practice for Use of the Terms Precision and Bias in
mortars, since this test method cannot truly reflect the overall linear
ASTM Test Methods
shrinkage of a sulfur mortar.
E691 Practice for Conducting an Interlaboratory Study to
1.2.2 The change in length at a specific elevated temperature
Determine the Precision of a Test Method
is measured and used to calculate the coefficient of thermal
expansion.
3. Terminology
1.3 This test method is limited to materials with aggregate
3.1 Definitions—For definitions of terms used in this test
size of 0.25 in. (6 mm) or less.
method, see Terminology C904.
1.4 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical
4. Significance and Use
conversions to SI units that are provided for information only
4.1 This test method offers a means of comparing the
and are not considered standard.
relative linear shrinkage and coefficient of thermal expansion.
1.5 This standard does not purport to address all of the
4.1.1 The material to be tested is placed in the mold in a
safety concerns, if any, associated with its use. It is the
fluid or plastic state. As the material makes a transition to a
responsibility of the user of this standard to establish appro-
solid state, it adheres to and captures the end studs.
priate safety, health, and environmental practices and deter-
4.1.2 The linear shrinkage measured is the change in length
mine the applicability of regulatory limitations prior to use.
that occurs after the material is rigid enough and strong enough
1.6 This international standard was developed in accor-
to move the studs.
dance with internationally recognized principles on standard-
4.2 This test method can be used for research purposes to
ization established in the Decision on Principles for the
provide information on linear changes taking place in the test
Development of International Standards, Guides and Recom-
materials. Other dimensional changes may occur that do not
manifest themselves as changes in length.
1
This test method is under the jurisdiction of ASTM Committee D01 on Paint
and Related Coatings, Materials, and Applications and is the direct responsibility of
2
Subcommittee D01.46 on Industrial Protective Coatings. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved July 1, 2018. Published November 2018. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approved in 1963. Last previous edition approved in 2012 as C531 – 00 (2012). Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/C0531-18. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C531 − 18
5. Apparatus 6.4.4 In assembling the mold, the end blocks must move
freely in the mold before securing to the mold with machine
5.1 Weighing Equipment, shall be capable of weighing
screws.
materials or specimens to 60.3 % accuracy.
6.4.5 Measure the measuring studs with micrometers and
5.2 Equipment for Mixing, consisting of a container of
carefully adjust in the end blocks by means of the standard
...