How to achieve the optimal production of precast concrete products?

The key factor for the optimisation of precast concrete production is to achieve the required initial strength in the shortest possible time. The sooner this strength is achieved, the sooner the formwork can be released, the formwork can be removed and the next piece can be erected.

These concretes are normally characterised by a consistency between 15-22 cm and a low water/cement ratio, which is achieved with superplasticising admixtures.

The amount of cement may vary depending on the intended initial strength, while the type of cement used in most cases is usually a type I/52.5 R cement.

In a low temperature climate and if the initial strengths are demanding, the use of setting accelerator additives may be necessary.