Cover to reinforcement - getting it right: product performance requirements

摘要

Reinforced concrete is the most commonly used structural material around the world, and the failure to achieve the specified concrete cover to the steel reinforcement in reinforced concrete structures is a known problem. 2021 marks the 20th anniversary of the publication of BS 7973:20011, which solves this problem. The standard comprises two parts: Part 1 defines the product performance requirements for spacers and chairs; Part 2 shows the fixing and application of spacers and chairs, and the tying of reinforcement. The standard is applicable to all in situ reinforced concrete work and can also be used for precast concrete.