ASTM C1697-18 PDF Download

ASTM C1697-18 is a standard specification that covers blended supplementary cementitious materials, which are created by blending or intergrinding two or three compliant supplementary cementitious materials. These materials are used in concrete or mortar applications where hydraulic or pozzolanic action, or both, are desired. The supplementary cementitious materials included in this specification are slag cement, natural pozzolans, coal fly ash, and silica fume.

It is important to note that the incorporation of these supplementary cementitious materials, either as separate additions or as a manufactured blend, can significantly alter the properties of fresh and hardened concrete. Users should be aware of these changes and are referred to the ACI Manual of Concrete Practice for information and guidelines. The manual provides specific references to ACI 232.1R (Use of Natural Pozzolans in Concrete), ACI 232.2R (Use of Fly Ash in Concrete), ACI 233R (Slag Cement in Concrete and Mortar), and ACI 234R (Guide for the Use of Silica Fume in Concrete). These references offer guidance on the appropriate use of the supplementary cementitious materials in concrete applications.