Planning and design
The eco-slabs have a size of 75 cm x 50 cm and have six different textures/shapes of 25 cm x 25 cm at the top surface. The eco-slabs were attached both horizontally and vertically to the concrete blocks. The textures and geometrical shapes for the vertically placed slabs were slightly different from those for the horizontal ones.
The table below lists the six textures/shapes for both the horizontal and vertical slabs.
| vertical slabs | horizontal slabs | ||
|---|---|---|---|
| 1 | vertical grooves | 1 | fine and smooth surface structure |
| 2 | small holes | 2 | cup (45% of surface) |
| 3 | fine surface structure | 3 | horizontal grooves |
| 4 | horizontal grooves | 4 | smooth surface structure |
| 5 | medium-fine surface structure | 5 | small holes |
| 6 | smooth surface structure | 6 | vertical grooves |
In addition, eco structures topping (surface layer) were placed on 15 large size X-blocks (2 m x 2 m). These blocks were placed along the Zuiderhavenpier.
