BS ISO 22904:2020
$142.49
Additions for concrete
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 32 |
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 ISO 22965. 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.
Some rules are given in ISO 22965-2 , 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 ISO 22965-2 .
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 6 | Foreword |
| 7 | Introduction |
| 9 | 1 Scope 2 Normative references |
| 10 | 3 Terms and definitions |
| 12 | 4 Specifications 4.1 General 4.2 Silica fume 4.2.1 General 4.2.2 Chemical requirements |
| 13 | 4.2.3 Physical requirements |
| 14 | 4.3 Fly ash 4.3.1 Chemical requirements |
| 16 | 4.3.2 Physical requirements |
| 17 | 4.3.3 Specific provisions for fly ash from co-combustion |
| 18 | 4.4 Ground granulated blastfurnace slag 4.4.1 General 4.4.2 Chemical requirements |
| 19 | 4.4.3 Physical requirements |
| 20 | 4.5 Durability requirements 4.6 Release of dangerous substances and emission of radioactivity 4.7 Information to be supplied upon request |
| 21 | 5 Sampling 6 Conformity control and evaluation of conformity 7 Packaging, labelling and marking |
| 22 | Annex A (normative) Method of determining the moisture content of ground granulated blastfurnace slag |
| 23 | Annex B (normative) Determination of the water requirement for Category S fly ash |
| 25 | Annex C (normative) Determination method on the content of soluble phosphate in fly ash (expressed as P2O5) |
| 27 | Annex D (informative) Guidance on conformity control and evaluation of conformity |
| 31 | Bibliography |
