BS 8500 is the British Standard for specifying and producing concrete. It is the complementary British Standard to BS EN 206. BS 8500 is split into two parts. Part 1 covers specification and gives guidance to the specifier. Part 2 covers the constituent materials in concrete and contains the information required by the concrete producer.
The specifier is offered five approaches to the specification of concrete, with the standard describing the correct way of compiling specifications for designated, designed, prescribed, standardized prescribed, and proprietary concretes.
This part of BS 8500 gives detailed guidance for the specifier, including advice on exposure classes for durability, aggregate classes, intended working life and consistence etc., presented as a series of tables with accompanying explanatory text.
The latest amendment to BS8500 allows the use of ternary cements, i.e. blends of three types of cementitious binder: Portland cement, limestone fines and one of ground granulated blastfurnace slag (ggbs), flyash and pozzalana.
Please see our How-to guide on specifying concrete using BS8500 here
BS 8500-2:2015 is intended for use by producers of concrete.
This part of BS 8500 specifies a number of basic requirements for concrete and its constituent materials, and gives specific requirements relating to the types of concrete listed in BS 8500-1. It also specifies requirements relating to delivery, conformity testing, production control and transport.
This Standard gives UK national provisions where required or permitted by BS EN 206, and also covers materials, methods of testing and procedures that are outside the scope of BS EN 206, but within UK national experience.
The requirements in this part of BS 8500 are given for defined materials with an established or accepted adequate performance in UK conditions.