Proposes requirements for specifying normal-class and special-class concrete and for their manufacture, by either the batch or the continuous production method, for supply in the plastic state, to the customer. Gives performance requirements for the materials and plant used in the manufacturing process, including accuracy of measuring and batch equipment. Criteria for compliance with specified plastic and hardened state properties are also given, together with references to standard methods of testing for these and methods of assessment for compliance with compressive strength criteria. The Appendices cover information to be supplied when specifying special class concrete and methods for determining an acceptable degree of mixing uniformity in different types of mixers.
