Three‐dimensional (3D) printing and geo‐polymers are two environmentally oriented innovations in concrete manufacturing. The 3D printing of concrete components aims to reduce raw material consumption and waste generation. Geo‐polymer is being developed to replace ordinary Portland cement and reduce the carbon footprint of the binder in the concrete. The environmental performance of the combined use of the two innovations is evaluated through an ex‐ante life cycle assessment (LCA). First, an attributional LCA was implemented, using data collected from the manufacturer to identify the hotspots for environmental improvements. Then, scaled‐up scenarios were built in collaboration with the company stakeholder. These scenarios were compared with the existing production system to understand the potential advantages/disadvantages of the innovative system and to identify the potential directions for improvement.

中文翻译：

---

3D打印地质聚合物混凝土的生命周期评估：事前研究

三维（3D）打印和地质聚合物是混凝土制造中两项环保的创新。混凝土组件的3D打印旨在减少原材料消耗和废物产生。正在开发地质聚合物以替代普通的波特兰水泥并减少混凝土中粘合剂的碳足迹。通过事前生命周期评估（LCA）对两种创新的结合使用的环境绩效进行评估。首先，实施归类LCA，使用从制造商处收集的数据来识别热点，以改善环境。然后，与公司利益相关者协作建立了扩展方案。