Bodemmix

Bodemmix is a composite material comprising a mixture of local soil aggregates bonded with a polymeric binder. It is primarily used in civil engineering for sub‑base layers in road construction, bridge decks, and environmental protection works. The formulation typically consists of fine and coarse sand, gravel, and a low‑viscosity polymer resin that reacts in situ to form a cementitious matrix. This matrix imparts improved strength, reduced permeability, and greater resistance to temperature cycling compared to conventional dry soil layers.

The material is applied by spreading the dry mix onto a prepared substrate, followed by the injection of a liquid binder that travels through the voids and chemically cross‑links. The precured layer is then compacted mechanically to achieve the required density. Because the binder infiltrates the aggregate, the finished product has a homogeneous microstructure that improves load distribution and reduces differential settlement.

Bodemmix is marketed as a cost‑effective alternative to asphalt or concrete, particularly in projects with limited budgets or where rapid construction is desired. It is also favored for its lower environmental impact: the use of locally sourced aggregates reduces transport emissions, and the binder can be formulated to lower volatile organic compound content. Drainage layers can be incorporated by adding permeable aggregate layers beneath the polymer matrix, making Bodemmix suitable for embankments and channel linings.

In the Netherlands and neighboring countries, several provincial road authorities have adopted Bodemmix for regional road rehabilitation projects. Reports indicate that layers applied with Bodemmix can achieve service lifespans of 8–12 years with minimal maintenance, depending on load conditions and climatic factors.