Sewerage systems

– Avoid unnecessary cleaning of surface water and leakage of wastewater

Leaking sewer pipes pose a significant environmental risk because untreated wastewater can infiltrate into the soil and the groundwater. Consequently, it is important that utility companies or private households renew the pipes in time – before they start leaking.

No-Dig renewal…
Pipe renewal is usually carried out by means of trenchless excavation methods – the so-called No-Dig methods. One of the methods, developed by Aarsleff, is CIPP Lining. We manufacture the liners in our own factory in Denmark according to specific measurements and dimensions. The liners come in all lengths, dimensions and wall thicknesses, and they can be sewn together, allowing pipe stretches of varying dimensions to be renewed in one single operation. In this way, we are able to renew several hundred metres at a time.

… or conventional excavation
Aarsleff also carries out conventional sewer rehabilitation and renewal by means of excavation if that is the most appropriate solution. We draw on the Aarsleff Group’s extensive range of expertise, and we manage complex method such as tunnelling. Our experience includes construction of pumping stations in areas with heavy traffic.

Aarsleff renews pipes from A to Z
Aarsleff undertakes major pipe renewal projects – public as well as private – including collectors, laterals, service connections between collectors and laterals as well as manholes.

We cover the entire pipe renewal process – including CCTV inspection, slope measurement as well as analysis and consultancy on the choice of renewal methods. In addition, we offer long-term planning of preventive maintenance plans including budgets, renewal plans and concept for multi-annual framework agreements and operational contracts.

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