www.antena3.ro/externe/mapamond/asfaltul-facut-din

Hamburg authorities tested a new asphalt made from cashew shells, aiming for an eco-friendly alternative. However, the material degraded within a year, failing to meet technical standards. The damaged asphalt will be removed and replaced with conventional material, costing around €50,000. This initiative was part of Hamburg's efforts to reduce infrastructure's environmental impact, but concerns were raised about the sustainability of using cashew shells, which are not locally sourced and require significant water for production. Other German cities like Stuttgart and Frankfurt also explored this technology, but it was not ready for large-scale production.