Modern. Cost-effective. Environmentally friendly.
In pipeline construction, supply and disposal lines or pipelines can be laid using a closed construction process known as trenchless installation, without needing to dig a channel along the route of the pipeline. The advantage of this installation method over the open construction method is that a shaft only needs to be dug at the start and end of the section of pipeline. Intersecting roads, rail tracks, rivers and construction sites are virtually unaffected by the work and there is no need to divert traffic, which can be complex and costly. This method also reduces dust and noise for residents in the surrounding area, making it the preferred option in densely populated areas.
Trenchless installation creates a specific set of requirements for corrosion prevention: On one hand, it is essential that the protection system is flexible, so that pipe movement can be absorbed. On the other hand, the system must also have exceptionally high abrasion and shear strength. The system must also be easy to apply, solvent and odour-free and harden rapidly so that the surface can be put back into use as soon as possible. In its solutions for the various methods of trenchless installation, including horizontal directional drilling, pipe driving and pipe ramming, DENSO has taken these requirements as a starting point for developing tailored products.