Construction of 2 pre-stressed concrete silos with an inner diameter of 28 m, and 43.6 m high. The silos have shallow reinforced concrete foundations. The circular skirt of the silos is pre-stressed concrete. Pre-stressing is applied by horizontal cables the same length as half the silo circumference. The cable anchoring is offset by one quarter of the circumference at each cable, making it possible to homogenise the pre-stress losses and alternate the positions of the anchors on the skirt. Spacing of the cables varies over the height depending on the loads applied to the silo.
Galleries pass through the silo skirts. They have a reinforced concrete frame structure with a 3.0 m opening. These galleries are separate from the silo structure.
Construction of a reinforced concrete silo with a diameter of 12.2 m, and 41 m high. The silo foundations are shallow. The foundations and skirt are reinforced concrete.
Construction of masses for reinforced concrete conveyors.