A smaller-scale alternative to ready-mix concrete is the use of contractors who provide ‘mini-mix’ concrete, arriving at site with lorries containing all the separate concrete constituents, including water. The lorry has a separate mixer with integrated weight-batching facilities, allowing precise, small quantities, up to approximately 6m3, to be mixed on site to specified mix proportions. Mini-mix suppliers will also barrow the concrete to where it is required, within reason. Such a service eliminates many of the disadvantages associated with ready-mix concrete.
Fig. 14 Lorry delivering ‘mini-mix’ concrete.