HydroFoamer is a controlled pipeline installation system that uses structural polyurethane foam to create a restrained buried pipeline.

By replacing granular backfill and concrete thrust blocks with engineered foam, the system simplifies construction while improving load distribution and stability.

Originally developed for GRP hydropower pipelines, the method is now applicable across water infrastructure and energy pipeline systems.

What It Does

The HydroFoamer platform:

  • Aligns and installs pipe segments using integrated measurement and control systems
  • Applies structural foam around the pipe to create continuous support
  • Distributes axial and radial loads along the pipeline
  • Records installation and quality control data in real time
  • Operates as a mobile, self-contained installation platform


Typical installation rates allow long pipeline sections to be completed in significantly shorter timeframes than conventional methods, even in difficult terrain.

Functional Benefits


By forming a continuous structural envelope around the pipe and interacting with native soil, HydroFoamer creates a restrained pipeline system with the following characteristics:

  • Eliminates the need for imported or crushed gravel
  • Removes most or all concrete thrust blocks
  • Provides continuous mechanical support along the pipe
  • Reduces ovalisation and local stress concentrations
  • Improves resistance to settlement and ground movement
  • Enables the use of lighter or more cost-efficient pipe classes
  • Reduces overall construction cost, logistics and emissions


The result is a stable, load-distributing system that performs across a wide range of soils, climates and installation conditions.

Academic & Technical Validation


The HydroFoamer method has been validated through full-scale field deployment and independent academic research.

“The commissioning of Lille Måsevann penstock proves that the method with PU-foam as backfill works on a full-scale project, both for construction and operation.”

Prof. Leif Lia – NTNU Trondheim

Validation includes:

  • Multiple NTNU master’s theses confirming performance across relevant design cases
  • Independent engineering input from iVest and Multiconsult
  • Full-scale demonstration at Statkraft’s Adamselv project (2016–2018)
  • Measured structural and hydraulic performance under real operating conditions

Proven. Practical. Scalable.

HydroFoamer is a field-proven installation method that has moved beyond concept and pilot stage.

The current focus is on industrial deployment through a controlled, repeatable installation platform.

The system is designed for use across:

  • Hydropower developments
  • Water infrastructure projects
  • Energy pipeline installations


HydroFoamer enables a consistent, high-performance installation method across diverse environments.

Documentation


Technical documentation and supporting material are available on request.

A presentation by Professor Leif Lia (NTNU 2018) to ICOLD in Vienna from here.