Compostyrene is a lightweight polystyrene embankment solution that has been tried and trusted by Colas for over 35 years.
Polystyrene is 100 times less dense than traditional embankment materials. It has excellent mechanical properties, great chemical stability and it stands firm in the presence of water. It is therefore extremely durable when subjected to strains of various types.

Compostyrene is a match for the most complex geotechnical problems in the fields of terracing, civil engineering and construction.
A dedicated engineering unit within the Colas technical network draws on expertise amassed by the Group over 35 years and feedback from the field in designing and modelling such projects.