The first 3D - printed concrete bridge has been opened in Gemert in the Netherlands . The cycle bridge , which is only eight metres long , consists of about 800 layers of 3D - printed , pre - stressed and reinforced concrete , and took about three months to build since work began last June . 3D printing meant “fewer scarce resources were needed and there was significantly less waste”, he added. The project was carried out by the Rotterdam University of Technology and the BAM Infra construction company , and the bridge was successfully tested for a maximum load of two tonnes . The 3D - printing technique enabled the use of less concrete than would have been required by traditional mould methods .
The first 3D - printed concrete bridge has been opened in Gemert in the Netherlands . The cycle bridge , which is only eight metres long , consists of about 800 layers of 3D - printed , pre - stressed and reinforced concrete , and took about three months to build since work began last June . The project was carried out by the Rotterdam University of Technology and the BAM Infra construction company , and the bridge was successfully tested for a maximum load of two tonnes . The 3D - printing technique enabled the use of less concrete than would have been required by traditional mould methods .