Method for manufacturing two layered concrete slab with marblised visible face

摘要

The procedure involves colour additives, which are delivered (6) onto the facing material. This occurs after the material (4) has left the mixer (2) and before being picked up by the agitator (7) of the doser (5). The agitator, after the delivery of the colour additives onto the material, is driven only in time defined intervals. The material is deposited from the mixer flat on a conveyor belt (3) which feeds it into the doser. The colour additives are fed onto the material resting on the conveyor belt.