Fly ash for concrete - Definition, specifications and conformity criteria1 Scope This European Standard specifies requirements for the chemical and physical properties as well as quality control procedures for siliceous fly ash, as defined in 3. 2, for use as a type II addition for production of concrete conforming to EN 2061. Fly ash according to this document may also be used in mortars and grouts. Fly ash produced with other types or higher percentages of co combustion materials than those provided for in Clause 4 is

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