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Standards Development
This part of BS 8500 describes methods of specifying concrete and gives guidance for the specifier.
Annex A of this British Standard provides guidance on the concrete quality to be specified for selected exposure classes, intended working life and nominal cover to normal carbon steel reinforcement. It does not give guidance on stainless steel and non‑metallic reinforcement. Guidance on nominal cover to reinforcement for structural and fire consideration is available in other publications, e.g. structural design codes of practice.
This part of BS 8500 complements BS EN 206. It provides United Kingdom national provisions where required or permitted by BS EN 206. It also covers materials, methods of testing and procedures that are outside the scope of BS EN 206, but within national experience.
BS EN 206-1:2026 and BS EN 206-2:206 have been published but without the complementary requirements and guidance required for national implementation. References need to ne updated, as does terminology to align with the new European standard.
BS EN 197-6 was published after the last revision to BS 8500-1 (2023) and describes CEM II/C-M cements utilizing building waste that will allow lower carbon concretes to be produced with recycled concrete fines and improve the quality of crushed concrete aggregates.
Include CEM II/C-M (Q-L) cements (lower carbon ternary cements with calcined clays and limestone fines).
The current edition of BS 8500-1 does not give any guidance to the specifier on the use of these cements and so they will not be accepted for structural concrete. Although this part of the standard is guidance and contains many informative sections, due to potential liabilities and insurance, most Engineers will treat BS 8500-1 as a requirements standard.
Introduce guidance for the specification of carbon classes for concrete.
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