What is BS EN 14227-4 - Fly ash for hydraulically bound mixtures - specifications about?
Fly ash to concrete increases the workability of flexible concrete as well as the strength and durability of hardened concrete. BS EN 14227-4 is a European Standard that serves specifications for fly ash used in hydraulically bound mixtures, enhancing the usability, application, and performance in road construction applications.
BS EN 14227-4 is the fourth part of the multi-series that specifies siliceous and calcareous fly ash used in hydraulically bound mixtures for roads, airfields, and other trafficked areas. BS EN 14227-4 applies to fly ash produced by the combustion of pulverized coal or lignite in energy-generating plants.
Who is BS EN 14227-4 - Fly ash for hydraulically bound mixtures - specifications for?
BS EN 14227-4 on ‘fly ash for hydraulically bound mixtures – specifications’ is useful for:
- Manufacturers and suppliers of hydraulically bound mixtures
- Suppliers of binders such as cement, fly-ash needed to make hydraulically bound mixtures
- Product development / innovation teams
- Contractors and infrastructure developers
- Construction, civil and design engineers
- Road maintenance authorities
- Inspection and quality assurance personnel
Why should you use BS EN 14227-4 - Fly ash for hydraulically bound mixtures - specifications?
The addition of fly ash to hydraulically bound mixtures has multiple benefits, including weight and cost.
BS EN 14227-4 provides you with guidance on constituents such as cement, fly ash, granulated blast furnace slag, hydraulic road binder, lime, soil, water, and other constituents, ensuring hardness and structural stability of hydraulically bound mixtures containing fly ash.
BS EN 14227-4 also guides you with requirements for the fresh mixture, production control, marking, and labelling, ensuring the quality and performance of fly ash for hydraulically bound mixtures.
The adoption of BS EN 14227-4 allows users to standardize the requirements for fly ash, ensuring cost-effectiveness and limiting the environmental impact on roads, airfields, and other trafficked areas.
What’s changed since the last update?
BS EN 14227-4:2013 supersedes BS EN 14227-4:2004 which is withdrawn. BS EN 14227-4:2013 includes some editorial changes with reference to EN 14227-4:2004. These include:
- Revision of Clause 4.2 "Requirements for siliceous fly ash"
- Revision of Clause 4.3 "Requirements for calcareous fly ash"
