Case Study

Quay wall filling.

Quay wall filling is the solution to Washouts.
Washouts are more common in quays where big ships dock. But can happen anywhere where large volumes of water pass.

Pipe for foam injection Leiding vullen - RG30 by Benefil

Washed out quay walls.

We’ve got the solution: Quay wall filling with Benefil Hardfoams. But what is the exact problem of washed out quay walls? And how do they appear?

The risk of a washout in a quay wall or quay in general is of course the risk of collapsing. A large void over which heavy vehicles or even cranes and trains ride is a recipe for disaster.

The cause of these voids is that the ships generate a lot of water turbulence and this can also transport soil out of the wall creating dangerous voids. Most docks are built to be able to handle these voids, but as the void gets bigger, more and more soil gets removed at a time.

Filling the quay-wall with hardfoam.

Benefil Hardfoam RG30 is our solution to these washouts.

It does not get diluted by the water when being applied. And it fills all voids through which the washouts are created in the first place.

By washing or blowing down the injection-pipes we got good acces to the voids, down to the level of the washout. Now the void could be filled completely to limit damage and prevent further washing out of the soil.

The RG30 filled all voids in the quay and it only took a day for the job to be done with no damage done to the surroundings. The bricks removed for the injection pipes could be replaced after filing.