planners and contractors aim for direct economic highways, aiports and other
traffic routes using natural resources as efficiently as possible in their
construction: this often means having to build on poor soils and sometimes even
to reclaim land. In many cases, the sub-grade is too weak to allow construction
to proceed at a normal rate. Soft, cohesive soils are very slow to consolidate.
90% settlement often takes 20-25 years without the use of Prefabricated Vertical
As a pioneer in the acceleration of soil consolidation by means of PVD’s,
Colbond launched its research and development work in this field in 1977. The result is
Colbonddrain, a high-performance PVD, which has since then been continuously further
developed and improved. Colbonddrain is designed to drain excess pore water from soils
to achieve 90% consolidation within as little as six months. All project parties
involved benefit from PVD’s making major savings on time and costs.
For more information on Colbonddrain and its uses, please go to the
Colbonddrain product information.