Elastocoast® — Making our Coasts and Rivers Safer
Whereas conventional technology contains rigid concrete structures that can be broken down by wave impact, frost and ground subsidence, the Elastocoast® system involves the mechanical bonding of an aggregate (crushed rock or gravel) bonded with an environmentally compatible 2-component polyurethane plastic.
• The porous structure between the stones withstands heavy wave impact.
• The cover layer also offers a habitat for flora and fauna.
What has already proven successful in coastal protection can also be used on river banks and canals. The goal here is also to create a strong and near-natural revetment to consolidate shore zones and stabilize them against traffic-induced waves and – as in the case of the Elbe River – against the tides.
In waterway engineering, there is also the possibility of underwater installation where the rock-PU mix, after sufficient reaction time, is poured into the water close to the bank and compacted. The principle is just as simple as for dike construction and protects the banks from disintegration and damage due to strong currents.
The stones used have to be clean and surface-dry before being processed. This is a requirement that seems to be difficult at first sight. As other realized projects show, certain simple measures regarding handling and logistics eliminate this obstacle.
Elastocoast® consists of approx. 50% of vegetable fatty acid esters, thus renewable raw materials. In addition, due to the high porosity cavities it provides additional habitat for animals and plants. Also the Elastocoast® revetments easily integrate into the overall appearance of the landscape. Due to the transparency of the material, it is difficult to set them apart from naturally coloured rip-rap.
Before the material has completely cured, the surface should be covered with dry sand by which the visual effect is additionally adjusted and a skid resistant surface can be created.
In addition to Elastocoast® we offer further innovative materials. These might also be interesting for you.