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New Astm Blended-Scm Standard Spans Ternary Mixes

ASTM C1697-10 Standard Specification for Blended Supplementary Cementitious Materials covers product containing two or three ASTM-compliant SCM and used to impart hydraulic or pozzolanic action in concrete or mortar

Source: ASTM International, West Conshohocken, Pa.; National Ready Mixed Concrete Association, Silver Spring, Md.

ASTM C1697-10 Standard Specification for Blended Supplementary Cementitious Materials covers product containing two or three ASTM-compliant SCM and used to impart hydraulic or pozzolanic action in concrete or mortar. Blended or interground, the agents must be ASTM C618-grade fly ash, C1240 silica fume or C989 slag. Developed by ASTM Subcommittee C09.24 on Supplementary Cementitious Materials, the new C1697-10 standard likewise references the American Concrete Institute Manual of Concrete Practice and ACI 232.1R Use of Natural Pozzolans in Concrete; 232.2R Use of Fly Ash in Concrete; 233R Slag Cement in Concrete and Mortar; and, 234R Guide for the Use of Silica Fume in Concrete.