British Concrete Standard (BS 8500) 3rd edition published April 2015

摘要

The British Standard Concrete Committees for Concrete and Concrete production and testing met on 22 April 2015 and approved the British Standard for Concrete (BS 8500) 3rd edition for publication. The date of publication is April 2015 but the Standard will not come into effect until 30 June 2015. Most of the revision is to fully align with the European Standard for Concrete (EN 206) published in 2013 but it has also been aligned with other Standards that have been revised since 2006. Aspects of note are: 1. Changes to align with the European Standard for Aggregate for concrete (EN 12620), including alignment with the European Standard for the classification of coarse recycled aggregates (EN 933-11). 2. Making it clearer that product conformity certification is a requirement for designated concrete and that the certification conforms to minimum requirements as proposed by QSRMC and the BSI Kitemark Scheme for Ready-Mixed Concrete. 3. The inclusion of designated cement-bound 'CB' concrete suitable for vibrating plate or roller compaction to a target density. This covers a range of dry-lean and roller-compacted concretes specified by characteristic strength and using cements and combinations outside the scope of EN 14227-1.