To meet the requirements of the market, a key concern for the concrete manufacturer is to succeed in reconciling flexibility, productivity and safety, while offering an ever-larger range of high-quality products. It is known that manufacturing plants produce according to their stock and the specific orders they receive. However, quantities and type of product are increasingly variable. In order to react to their customers’ wishes, concrete manufacturers have to change their production several times during a shift. However, this operation has a big impact on the production. On the one hand, the overall manufacturing process is affected in that the production changeover involves a production shutdown which adversely affects the rate of production. On the other hand, this operation affects the labour force during the handling of moulds, exposing them to hazards and frequent work-related accidents.