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.

When designated mixes are used, the ready-mix supplier will only require the mix designation, and consistence class. (see 3.1.6 Table 4)

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