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BS ISO 22904:2020

Current
Current

The latest, up-to-date edition.

Additions for concrete
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

22-07-2020

Publisher

British Standards Institution

This document specifies requirements for the properties for silica fume, siliceous fly ash and ground granulated blastfurnace slag for use as a type II addition for production of concrete conforming toISO22965.

This document specifies requirements for the properties for silica fume, siliceous fly ash and ground granulated blastfurnace slag for use as a type II addition for production of concrete conforming to ISO22965. Additions according to this document can also be used in mortars and grouts.This document applies to the silica fume which is a by-product of the smelting process used to produce silicon metal and ferro-silicon alloys.Fly ash produced with other types or higher percentages of co-combustion materials than those provided for in this document is outside the scope of this document.Ground granulated blastfurnace slag containing any added materials other than grinding aids and/or gypsum (calcium sulfate) is not within the scope of this document.It is not within the scope of this document to specify provisions for the practical application of additions in the production of concrete, mortar or grout, i.e. requirements concerning composition, mixing, placing, curing, etc. NOTE Some rules are given in ISO22965-2 , e.g. provisions on general suitability and use of additions. Guidance on batching, control of additions content and the use of the k-value concept are also given in ISO22965-2 .

Committee
B/517
DocumentType
Standard
ISBN
9780539011869
Pages
32
ProductNote
THIS STANDARD ALSO REFERS:ISO 20290-1, EN 413-2
PublisherName
British Standards Institution
Status
Current

Standards Relationship
ISO 22904:2020 Identical

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Hardcopy - English
PDF - English
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