ASTM C1038/C1038M-14b PDF

Scope: 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.

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)

ASTM C1038/C1038M-14b Referenced Document

ASTM C1005 Standard Specification for Reference Masses and Devices for Determining Mass and Volume for Use in Physical Testing of Hydraulic Cements
ASTM C109/C109M Standard Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or [50-mm] Cube Specimens)
ASTM C1437 Standard Test Method for Flow of Hydraulic Cement Mortar
ASTM C305 Standard Practice for Mechanical Mixing of Hydraulic Cement Pastes and Mortars of Plastic Consistency
ASTM C490 Standard Practice for Use of Apparatus for the Determination of Length Change of Hardened Cement Paste, Mortar, and Concrete
ASTM C511 Standard Specification for Moist Cabinets, Moist Rooms, and Water Storage Tanks Used in the Testing of Hydraulic Cements and Concretes
ASTM C778 Standard Specification for Standard Sand
ASTM D1193 Standard Specification for Reagent Water

2024 ASTM C1038/C1038M-24 Standard Test Method for Expansion of Hydraulic Cementitious Material Mortar Bars Stored in Water
2019 ASTM C1038/C1038M-19 Standard Test Method for Expansion of Hydraulic Cement Mortar Bars Stored in Water
2014 ASTM C1038/C1038M-14b Standard Test Method for Expansion of Hydraulic Cement Mortar Bars Stored in Water
2014 ASTM C1038/C1038M-14a Standard Test Method for Expansion of Hydraulic Cement Mortar Bars Stored in Water
2014 ASTM C1038/C1038M-14 Standard Test Method for Expansion of Hydraulic Cement Mortar Bars Stored in Water
2010 ASTM C1038/C1038M-10 Standard Test Method for Expansion of Hydraulic Cement Mortar Bars Stored in Water
2004 ASTM C1038-04 Standard Test Method for Expansion of Hydraulic Cement Mortar Bars Stored in Water
2001 ASTM C1038-01e1 Standard Test Method for Expansion of Hydraulic Cement Mortar Bars Stored in Water
2001 ASTM C1038-01 Standard Test Method for Expansion of Hydraulic Cement Mortar Bars Stored in Water
1995 ASTM C1038-95 Standard Test Method for Expansion of Hydraulic Cement Mortar Bars Stored in Water