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1.1 This specification covers blended supplementary cementitious materials that result from the blending or intergrinding of two or three ASTM compliant supplementary cementitious materials, for use in concrete or mortar where hydraulic or pozzolanic action, or both, is desired. The supplementary cementitious materials include slag cement conforming to Specification C989, natural pozzolans and coal fly ash conforming to Specification C618 and silica fume conforming to Specification C1240.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
Note 1—The incorporation of supplementary cementitious materials as separate additions or as a manufactured blend may significantly alter the properties of fresh and hardened concrete. The user should be aware of these changes and is referred to the ACI Manual of Concrete Practice for information and guidelines. Specific reference is made 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|
|ACI 234R||Guide for the Use of Silica Fume in Concrete|
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C114 Test Methods for Chemical Analysis of Hydraulic Cement
C125 Terminology Relating to Concrete and Concrete Aggregates
C150 Specification for Portland Cement
C151 Test Method for Autoclave Expansion of Hydraulic Cement
C183 Practice for Sampling and the Amount of Testing of Hydraulic Cement
C311 Test Methods for Sampling and Testing Fly Ash or Natural Pozzolans for Use in Portland-Cement Concrete
C618 Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete
C989 Specification for Slag Cement for Use in Concrete and Mortars
C1240 Specification for Silica Fume Used in Cementitious Mixtures
ICS Number Code 91.100.10 (Cement. Gypsum. Lime. Mortar)
UNSPSC Code 30111500(Concrete and mortars)