Koninklijke Vopak N.V. is the world’s largest independent tank storage service provider, specialising in the storage and transfer of liquid bulk chemicals, gases and oil products. In 2014, a considerable expansion took place within the Botlek Rotterdam tank park.
The tanks are installed on a base that incorporates a special drip tray provision. The walls are constructed from steel sheet piles, which are, however, not completely liquid-proof.
A solution for this was found in the form of a permanent liner based on Prokol Polyurea Hotspray.
First, the sheet piles were dug free so that the sealing could be applied deep enough.
The seams were treated with a special sealant, thereby creating a closed subsurface.
The subsurface was then sandblasted with minimum dust formation and provided with a rust-resistant primer.
A seamless liner based on Prokol Hotspray Polyurea was applied in a thickness of 2.5 mm. This liner is fully resistant to the oil products stored in the tanks.
As a check, intermediate layer thickness measurements were made and a so-called pore test was performed. This way, it could be stated with absolute certainty that the liner would be liquid-proof.
A reliable emergency receptacle has been created in combination with the special sand bed.
This will function flawlessly for the next half century, without any form of maintenance needed.
Client: Vopak Rotterdam
Installation company: Van Ginkel
Execution: 3rd quarter 2014
Function: Secondary barrelling
System applied: Prokol IND/U-RW136