ASTM-C1038 › Historical Revision Information
Standard Test Method for Expansion of Hydraulic Cement Mortar Bars Stored in Water
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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)
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.
Keywords
hydraulic cement; mortar-bar expansion; sulfate; sulfate content; ICS Number Code 91.100.10 (Cement. Gypsum. Lime. Mortar)
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91.100.10 (Cement. Gypsum. Lime. Mortar)
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Document Number
ASTM-C1038/C1038M-14a
Revision Level
2014A EDITION
Status
Superseded
Modification Type
Revision
Publication Date
July 1, 2014
Document Type
Test Method
Page Count
3 pages
Committee Number
C01.28