Concrete and its reinforcement

3.1.5Ready-mixed concrete

Ready-mixed concrete shall be from a supplier operating under a quality control system acceptable to NHBC and be of sufficient strength and durability.

Ready-mixed concrete is acceptable from suppliers who operate under a full quality control scheme such as:

  • the Quality Scheme for Ready-Mixed Concrete (QSRMC), or
  • the BSI Kitemark scheme.

Other suppliers may be suitable if they operate to an equivalent quality standard acceptable to NHBC.

Ready-mixed concrete should be ordered to a detailed specification conforming to BS 8500 and BS EN 206-1.

When designated mixes are used, the ready-mix supplier will only require the mix designation, and consistence class.

Ready-mixed concrete should be:

  • GEN mix
  • FND mix, or
  • RC mix.

Delivery information should be checked to ensure that the concrete meets the requirements given in the design.