| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Composite Materials: Sustainable and Eco-Friendly Material Development and Applications
|
| Presentation Title |
Optimization of mix formulation and compressive strength evaluation of casted and 3D printed geopolymer specimens |
| Author(s) |
Demetris Nicolaides, Loucas Papadakis, Ponsian Robert |
| On-Site Speaker (Planned) |
Demetris Nicolaides |
| Abstract Scope |
The 3D printing technology has revolutionized manufacturing by enabling the creation of complex, intricate designs, significantly impacting the construction industry by reducing time and costs. Recent research has shifted towards eco-friendly alternatives, such as Geopolymer composites, which emit 80-90% less carbon and consume 60% less energy compared to Ordinary Portland Cement (OPC). This study explores the design and manufacturing of printable Geopolymer composites using Construction and Demolition Wastes (CDW) like brick, tile, and concrete powders. Alkali solutions made from commercial aqueous sodium silicate and 8M potassium hydroxide served as activators. Both 3D-printed and conventionally cast specimens were tested for compressive strength. The study aims to identify the optimal mix design for 3D printing Geopolymer composites by evaluating rheology, fresh properties, and strength, as well as determining the necessary pumping pressure and printing speed for effective 3D printing.
|
| Proceedings Inclusion? |
Planned: |
| Keywords |
Sustainability, Additive Manufacturing, Recycling and Secondary Recovery |