Speakers
Description
Additive manufacturing (3D printing) continues to advance as an alternative to conventional construction techniques due to its numerous technical and operational advantages. This study aims to develop a mortar system incorporating Calcium Aluminate Cement (CAC), White Portland Cement (WPC), and microencapsulated Phase Change Materials (mPCMs) for 3D-printing applications. The inclusion of mPCMs provides latent heat storage capability, offering potential benefits for energy‐efficient construction materials. The CAC used in the formulations contains a minimum alumina content of 50%, and the mineralogical characteristics of both CAC and WPC were determined by XRD–Rietveld analysis.
Printability requirements for extrusion-based additive manufacturing were evaluated through extrudability, buildability, workability loss, open time, green strength, and early-age compressive strength. The results demonstrate that the combined use of CAC and WPC induces the thixotropic behavior essential for maintaining structural stability during layer-by-layer deposition. The designed mortar mixtures exhibited sufficient flowability for extrusion while achieving high green strength to ensure dimensional stability. Furthermore, the incorporation of mPCMs was found to enhance buildability, indicating their potential to improve the performance of 3D-printed cementitious systems.
Affiliations
Çimsa, Allianz Tower Küçükbakkalköy Mah. Kayışdağı Cad. No: 1 Kat: 23-24 34750 Ataşehir/İstanbul, Türkiye, s.kurtsonmez@cimsa.com.tr
| Title | Energy-Efficient 3D Printable Mortars Using CAC–WPC Blends and Microencapsulated PCMs |
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| Keywords | Additive manufacturing, calcium aluminate cements, white portland cement, microencapsulated phase change materials, energy efficient mortar |