Concrete competition entry

Production & Parts | Master course

Individual | 2014


Concrete has a great duality in aesthetics. On one hand there is the (in)famous rough dirty concrete, on the other hand there is the smooth curved plaster-like concrete. This pavilion tries to show both, in a simple manner.


Concrete can be shaped in almost every double curved blob-like structure a designer wants. But the custom timber moulds that have to be made in order to pour the concrete are insane, expensive and a waste of timber. For a small pavilion like this a more simple method is found by linearising the waves in slabs, which are easy to prefabricate and therefore cheaper. By making waves the pavilion gets a dynamic character and a nice place to sit, lay down of to climb near the waterfront. The back of the pavilion is also a large bike stand. This makes the pavilion also suitable for hosting a small bicycle ferry.


The foot of the pavilion consists of a solid cast in-situ block, this block is rough and dirty. This automatically is the case when placing concrete partly in water. This roughness is accentuated by the texture of the timber mould that is still visible. The bicycle stands are cut out the concrete with a large buzz saw.


The distance between the rough cast in-situ concrete and the smooth prefab concrete is bridged by many thin stainless steel pipes which are screwed into the prefab slabs. Inspired by the aluminium centre in Houten. These columns also function as bicycle stands.


The distance between the two parts is essential, there are two main routes through the pavilion. But it is also possible to crouch another way towards the water. The view to the water isn’t blocked, but filtered.

The slabs are not connected to each other, but every slab is individually supported by certain columns. This is to keep the construction process and the manufacturing more simple. It is comparable with wooden skewers in a block oase.

All slabs are in theory stable, because the columns are clamped into the foot. However, there are some slanted columns which provides more certainty. Although the elements are not connected, they will be in stable equilibrium due the stable outer curves.


The slabs are made prefab using a flexible mould. The mould is flexible due the use of a thin steel plate. This plate is connected to screws on the outside, so it is possible to tighten (or loosen) the screws and therefore bend the metal plate. With this method the same simple mould can be used for a various amount of curves. The curves cannot be manufactured at one piece, but in two pieces for transport reasons.

2015 © Patrick van Dodewaard