Iowa州和Iowa DOT试验,回收塑料3D打印的地理格,提高碎石路的强度和耐久性,无需维修。 Iowa State and Iowa DOT test recycled plastic 3D-printed geogrids, boosting gravel road strength and durability with no maintenance needed.

爱荷华州立大学和爱荷华DOT正在从回收塑料中测试3D打印的地理格,以加强布坎南县的碎石路。 Iowa State University and the Iowa DOT are testing 3D-printed geogrids from recycled plastic to strengthen gravel roads in Buchanan County. 两年后,加固道路的承载能力提高30%,硬度提高20%,湿度降低10%-20%,无需维修。 After two years, reinforced roads showed 30% higher bearing capacity, 20% greater stiffness, and 10%–20% less moisture, with no maintenance needed. 该项目旨在改善爱荷华州71 000英里长的碎石路,可以扩大全州及以外地区,提供可持续的、成本效益高的解决办法。 The project, aimed at improving Iowa’s 71,000 miles of gravel roads, may expand statewide and beyond, offering a sustainable, cost-effective solution. 研究继续评估长期业绩和可扩展性。 Research continues to assess long-term performance and scalability.