Gravo® - Recycled Bottom Ash
Gravo products are CE-marked aggregate-like products for filtration and sub-base layers. Produced from waste-to-energy plants’ bottom ash, Gravo offers a circular economy solution for civil engineering structures.
Gravo is a recycled aggregate-like product from the bottom ash recycling process, available in qualities of 0/2 and 0/16 for filtration layers and 0/32 for sub-base layers. Gravo is a suitable material for traditional earth construction methods and can be utilised with a notification (MARA Decree) in paved structures in Finland, without an environmental permit. Our flexible sorting units and in-house processes enable us to tailor Gravo to meet customers’ specific needs and requirements. Currently Gravo materials are produced and available in Finland.
Benefits in using Gravo®
Quality
Gravo products are CE-marked and can be used with notification in paved structures in Finland.
Technical benefits
The high thermal resistance of Gravo products can reduce the amount of materials required in lower stressed structures.
Environmental benefits
Recycled bottom ash is a sustainable solution to replace the use of natural rocks and to reduce CO2 emissions.
Pilot projects
The use of Gravo products has been piloted in two civil engineering structures in Riihimäki, Finland. The pilot projects tested and monitored the technical functionality of the material in real working conditions. Gravo 0/2 and 0/16 qualities were tested in the filtration layer and 0/32 in the sub-base layer.
Contact our specialists to learn more about the results of the pilot projects!