ASTM C1038-04

Standard Test Method for Expansion of Hydraulic Cement Mortar Bars Stored in Water

SIGNIFICANCE AND USE
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.
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.
1.1.1 Warning: Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure.
1.2 The values stated in SI units are to be regarded as the standard. Values in parentheses are for information only.
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.

General Information

• Status: Historical
• Publication Date: 30-Jun-2004
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: C01 - Cement
• Drafting Committee: C01.28 - Sulfate Content

Relations

• Replaces: ASTM C1038-01e1 - Standard Test Method for Expansion of Hydraulic Cement Mortar Bars Stored in Water
• Effective Date: 01-Jul-2004
• Replaced By: ASTM C1038/C1038M-10 - Standard Test Method for Expansion of Hydraulic Cement Mortar Bars Stored in Water
• Effective Date: 15-Jun-2010

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:C1038–04
Standard Test Method for
Expansion of Hydraulic Cement Mortar Bars Stored in
1
Water
This standard is issued under the fixed designation C1038; 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 C1437 Test Method for Flow of Hydraulic Cement Mortar
D1193 Specification for Reagent Water
1.1 This test method covers the determination of the expan-
sion of mortar bars made using hydraulic cement, of which
3. Significance and Use
sulfate is an integral part.
3.1 This test method is used to determine the amount of
1.1.1 Warning—Fresh hydraulic cementitious mixtures are
expansion of a mortar bar when it is stored in water. The
caustic and may cause chemical burns to skin and tissue upon
amount of mortar-bar expansion may relate to the amount of
prolonged exposure.
sulfate in the cement; expansion may become excessive when
1.2 The values stated in SI units are to be regarded as the
the cement contains too much sulfate.
standard. Values in parentheses are for information only.
3.2 Some cement specifications limit the amount of sulfate
1.3 This standard does not purport to address all of the
contained in hydraulic cement by requiring that the amount of
safety concerns, if any, associated with its use. It is the
expansion in water not exceed a specified value.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
4. Apparatus
bility of regulatory limitations prior to use.
4.1 Reference Masses and Mass-Determining Devices, con-
forming to the requirements of Specification C1005. Evaluate
2. Referenced Documents
2
the device for precision and bias at a total load of 2 Kg.
2.1 ASTM Standards:
4.2 Glass Graduates, Molds, and Length Comparator, con-
C109/C109M Test Method for Compressive Strength of
forming to the requirements of Specification C490.
Hydraulic Cement Mortars (Using 2-in. or [50-mm] Cube
4.3 MoistCabinetorRoom, conforming to the requirements
Specimens)
of Specification C511.
C305 Practice for Mechanical Mixing of Hydraulic Cement
4.4 Mixer, Bowl, and Paddle, conforming to the require-
Pastes and Mortars of Plastic Consistency
ments of Practice C305.
C490 Practice for Use of Apparatus for the Determination
4.5 Trowel and Tamper, conforming to the requirements of
of Length Change of Hardened Cement Paste, Mortar, and
Test Method C109/C109M.
Concrete
C511 Specification for Mixing Rooms, Moist Cabinets,
5. Temperature and Relative Humidity
Moist Rooms, and Water Storage Tanks Used in the
5.1 Molding Room, Dry Materials, and Mixing Water—
Testing of Hydraulic Cements and Concretes
Maintain the temperature of the molding room, dry materials,
C778 Specification for Standard Sand
and mixing water at 23.0 6 4.0 °C, and maintain the relative
C1005 Specification for Reference Masses and Devices for
humidity of the molding room at not less than 50 %.
Determining Mass and Volume for Use in the Physical
Testing of Hydraulic Cements
6. Reagents and Materials
6.1 Mixing Water—Potable water is satisfactory for routine
1
This test method is under the jurisdiction ofASTM Committee C01 on Cement
tests. For all cooperative tests and in case of dispute, use
and is the direct responsibility of Subcommittee C01.28 on Sulfate Content.
reagent water conforming to the numerical limits ofType III of
Current edition approved July 1, 2004. Published August 2004. Originally
´1 Specification D1193.
approved in 1985. Last previous edition approved in 2001 as C1038 – 01 . DOI:
10.1520/C1038-04. 6.2 GradedSand—Sandformakingthetestspecimensshall
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
conform to the requirements for graded standard sand in
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Specification C778.
Standards volume information, refer to the standard’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.
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C1038–04
7. Procedure 8.2 Subsequent Storage—After the initial measurement,
store the test specimens in saturated lime water in a tank in the
7.1 Number and Dimensions of Test Specimens—Make four
moist cabinet or moist room. Cover the specimens with at least
1
25 by 25 by 285-mm, or 1 by 1 by 11 ⁄4-in. test specimens for
1
5-mm ( ⁄4-in.) of water during storage. Keep the storage water
each cement. The effective gage length of these specimens is
clean by changing as necessary. Use a tank and lime water
250 mm (10 in.).
...