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For the common access of both locks, the southern quay walls of the Zandvliet Lock were demolished and recycled, ultimately allowing about 80,000 m³ of rubble to be incorporated into the concrete to be manufactured for the new lock. This recycled concrete was applied as 'mass concrete' in certain segments of the retaining walls and at the approach to the access channel.

During construction, recycled concrete granulates were used for the less critical structural elements.

During the renovation of the old mine buildings in Zolder, a number of floor sections were constructed with concrete containing mixed rubble.

At the request of the principal, concrete with recycled granulates (rubble from the old St. Lieven's Hospital) was used to the extent possible.

The concrete for the foundation trenches and the floor slab was performed with a 100% and 30% replacement of the coarse proportion, respectively.

Coarse granulates 100% replaced with high-quality concrete granulates.

The construction of safety impact bumpers over a length of 700 m.

Two test sections, one with 20% concrete granulates, and one with 40% concrete granulates.

First application of 60% recycled granulates in substrate.