ASTM C1038/C1038M-14b
(Test Method)Standard Test Method for Expansion of Hydraulic Cement Mortar Bars Stored in Water
Standard Test Method for Expansion of Hydraulic Cement Mortar Bars Stored in Water
SIGNIFICANCE AND USE
3.1 This test method is used to determine the amount of expansion of a mortar bar when it is stored in water. The amount of mortar-bar expansion may relate to the amount of sulfate in the cement; expansion may become excessive when the cement contains too much sulfate.
3.2 Some cement specifications limit the amount of sulfate contained in hydraulic cement by requiring that the amount of expansion in water not exceed a specified value.
SCOPE
1.1 This test method covers the determination of the expansion of mortar bars made using hydraulic cement, of which sulfate is an integral part.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the 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 and health 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)
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Designation: C1038/C1038M − 14b
Standard Test Method for
Expansion of Hydraulic Cement Mortar Bars Stored in
1
Water
This standard is issued under the fixed designation C1038/C1038M; 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* C490 Practice for Use ofApparatus for the Determination of
Length Change of Hardened Cement Paste, Mortar, and
1.1 This test method covers the determination of the expan-
Concrete
sion of mortar bars made using hydraulic cement, of which
C511 Specification for Mixing Rooms, Moist Cabinets,
sulfate is an integral part.
Moist Rooms, and Water Storage Tanks Used in the
1.2 The values stated in either SI units or inch-pound units
Testing of Hydraulic Cements and Concretes
are to be regarded separately as standard. The values stated in
C778 Specification for Standard Sand
each system may not be exact equivalents; therefore, each
C1005 Specification for Reference Masses and Devices for
system shall be used independently of the other. Combining
Determining Mass and Volume for Use in the Physical
values from the two systems may result in non-conformance
Testing of Hydraulic Cements
with the standard.
C1437 Test Method for Flow of Hydraulic Cement Mortar
1.3 This standard does not purport to address all of the D1193 Specification for Reagent Water
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
3. Significance and Use
priate safety and health practices and determine the applica-
3.1 This test method is used to determine the amount of
bility of regulatory limitations prior to use. (Warning —Fresh
expansion of a mortar bar when it is stored in water. The
hydraulic cementitious mixtures are caustic and may cause
amount of mortar-bar expansion may relate to the amount of
2
chemical burns to skin and tissue upon prolonged exposure. )
sulfate in the cement; expansion may become excessive when
1.4 This international standard was developed in accor-
the cement contains too much sulfate.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the 3.2 Some cement specifications limit the amount of sulfate
Development of International Standards, Guides and Recom-
contained in hydraulic cement by requiring that the amount of
mendations issued by the World Trade Organization Technical expansion in water not exceed a specified value.
Barriers to Trade (TBT) Committee.
4. Apparatus
2. Referenced Documents
4.1 Reference Masses and Mass-Determining Devices, con-
3
2.1 ASTM Standards:
forming to the requirements of Specification C1005. Evaluate
C109/C109M Test Method for Compressive Strength of
the device for precision and bias at a total load of 2 kg.
Hydraulic Cement Mortars (Using 2-in. or [50-mm] Cube
4.2 Glass Graduates, Molds, and Length Comparator, con-
Specimens)
forming to the requirements of Specification C490.
C305 Practice for Mechanical Mixing of Hydraulic Cement
Pastes and Mortars of Plastic Consistency
4.3 MoistCabinetorRoom, conforming to the requirements
of Specification C511.
1 4.4 Mixer, Bowl, and Paddle, conforming to the require-
This test method is under the jurisdiction ofASTM Committee C01 on Cement
and is the direct responsibility of Subcommittee C01.28 on Sulfate Content.
ments of Practice C305.
Current edition approved Oct. 1, 2014. Published October 2014. Originally
approved in 1985. Last previous edition approved in 2014 as C1038/C1038M – 14a. 4.5 Trowel and Tamper, conforming to the requirements of
DOI: 10.1520/C1038_C1038M-14B.
Test Method C109/C109M.
2
Section on Safety, Manual of Cement Testing, Annual Book of Standards,
Vol. 04.01.
3
5. Temperature and Relative Humidity
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
5.1 Molding Room, Dry Materials, and Mixing Water—
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. Maintain the temperature of the molding room, dry materials,
*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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C1038/C1038M − 14b
andmixingwaterat23.0 64.0°C[73.5 67.0°F],andmaintain room. Keep all test specimens in the molds in the moist cabinet
the relative humidity of the molding room at not less than or moist room for 22.5 6 0.5 h with upper surfaces exposed to
50 %. the moist air but
...
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: C1038/C1038M − 14a C1038/C1038M − 14b
Standard Test Method for
Expansion of Hydraulic Cement Mortar Bars Stored in
1
Water
This standard is issued under the fixed designation C1038/C1038M; 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 expansion of mortar bars made using hydraulic cement, of which sulfate
is an integral part.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the 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 and health 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
2
tissue upon prolonged exposure. )
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)
C305 Practice for Mechanical Mixing of Hydraulic Cement Pastes and Mortars of Plastic Consistency
C490 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
C778 Specification for Sand
C1005 Specification for Reference Masses and Devices for Determining Mass and Volume for Use in the Physical Testing of
Hydraulic Cements
C1437 Test Method for Flow of Hydraulic Cement Mortar
D1193 Specification for Reagent Water
3. Significance and Use
3.1 This test method is used to determine the amount of expansion of a mortar bar when it is stored in water. The amount of
mortar-bar expansion may relate to the amount of sulfate in the cement; expansion may become excessive when the cement
contains too much sulfate.
3.2 Some cement specifications limit the amount of sulfate contained in hydraulic cement by requiring that the amount of
expansion in water not exceed a specified value.
4. Apparatus
4.1 Reference Masses and Mass-Determining Devices, conforming to the requirements of Specification C1005. Evaluate the
device for precision and bias at a total load of 2 Kg.kg.
4.2 Glass Graduates, Molds, and Length Comparator, conforming to the requirements of Specification C490.
1
This test method is under the jurisdiction of ASTM Committee C01 on Cement and is the direct responsibility of Subcommittee C01.28 on Sulfate Content.
Current edition approved June 15, 2014Oct. 1, 2014. Published July 2014October 2014. Originally approved in 1985. Last previous edition approved in 2014 as
C1038C1038/C1038M – 14a.–14. DOI: 10.1520/C1038_C1038M-14a.10.1520/C1038_C1038M-14B.
2
Section on Safety, Manual of Cement Testing, Annual Book of Standards, Vol. 04.01.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 ----------------------
C1038/C1038M − 14b
4.3 Moist Cabinet or Room, conforming to the requirements of Specification C511.
4.4 Mixer, Bowl, and Paddle, conforming to the requirements of Practice C305.
4.5 Trowel and Tamper, conforming to the requirements of Test Method C109/C109M.
5. Temperature and Relative Humidity
5.1 Molding Room, Dry Materials, and Mixing Water—Maintain the temperature of the molding room, dry materials, and
mixing water at 23.0 6 4.0 °C 4.0°C [73.5 6 7.0 °F], 7.0°F], and maintain the relative humidity of the molding room at not less
than 50 %.
6. Reagents and Materials
6.1 Mixing Water—Potable water is satisfactory for routine tests. For
...
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