A Framework for Crafting Sustainable Lightweight Concrete in Additive Manufacturing

Combining 3D (concrete) printing technology with energy-efficient materials in structure design is a promising approach to meeting sustainability targets by 2030. For instance, fabricating slender and lighter 3D elements induces lower self-loads on the structure and improves the thermal response of 3D-printed buildings. However, formulating sustainable alternatives to cementitious printable materials must be accompanied by environmental and economic Life Cycle Assessments (LCA). This study underscores a collaborative design approach between material science and LCA tools in developing lightweight concrete tailored for additive manufacturing techniques.