Civil Engineers, 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 Drains (PVD's).



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.