ASTM C989/C989M-12a

1.1 This specification covers three strength grades of slag cement for use as a cementitious material in concrete and mortar. Note 1 - The material described in this specification may be used for blending with portland cement to produce a cement meeting the requirements of Specification C595 or as a separate ingredient in concrete or mortar mixtures. The material may also be useful in a variety of special grouts, mortars, and when used with an appropriate activator, as the principal cementitious material in some applications.

Note 2 - Information on technical aspects of the use of the material described in this specification is contained in the Appendix. More detailed information on that subject is contained in ACI 233R-03.

1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the inch-pound units are shown in brackets. 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. Values are stated in only SI units when inch-pound units are not used in practice.

1.3 The following safety hazards caveat pertains only to the test methods described in this specification. 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.

1.4 The text of this standard references notes and footnotes that provide explanatory information. These notes and footnotes (excluding those in tables) shall not be considered as requirements of this standard.