Sewer canal

Most of our sewer network in the Netherlands is centuries old and requires urgent refurbishment. Waterschap Aa en Maas, a Dutch water board, takes this problem very seriously and commissioned Westvoort Aannemers from Helmond to refurbish a 500 metre section of sewer.



Aa en Maas Water Board




Waterproof polyester inner liner


Following the discovery of widespread decay in the concrete in the sewer network, five-meter pipe sections made by krafton© from its pultrusion profiles have been installed here during recent months. The sections are placed one behind the other in the old sewer and the remaining space filled with concrete. This process creates a waterproof polyester inner liner that will significantly prolong the old sewer system’s service life.

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