3D printing of circular materials: Comparative environmental analysis of materials and construction techniques

• DOI: 10.1016/j.cscm.2023.e02059
• Publication Date: 2023-04-12T16:06:05Z
• Authors: Shoukat Alim Khan; Muhammad Jassim; Husyin Ilcan; Oguzhan Sahin; İsmail Raci Bayer; Mustafa Sahmaran; Muammer Koc
• Keywords: Demolition waste; Construction waste; Circular Economy; Building material

The use of 3D printing in construction activities can help to reduce waste, lower energy consumption, and minimize the environmental impact building projects. As technology continues advance, it has potential play a major role development cleaner, more sustainable production processes industry. For each such innovation, is essential ensure its sustainability at an early stage development. This study aims assess advantages disadvantages newly developed demolition waste (CDW)-based geopolymer materials for built-environment structures. identifies "hot spots" process where highest develops strategies or mitigate negative impacts. Life Cycle Assessment (LCA) was carried out three cases CDW-based printed structures, Portland cement-based conventional masonry methods materials, analyze 3D-printed designs their comparative analysis. results showed that geopolymer-based resulted lowest global warming 488 [kg CO2 eq] as compared 595.6 ordinary structure 533.7 equivalent structure. main spot" identified amount electrical required mechanical processing which than 61% total GWP impact. In addition decreasing solid CDW, approach significant improvement by using sources reducing CDW generated.