3D printing of circular materials: Comparative environmental analysis of materials and construction techniques حسب Shoukat Alim Khan (14778226)

"…The main environmental "hot spot" identified for the geopolymer-based 3D printed construction process was the amount of electrical energy required for the mechanical processing of waste materials, which was more than 61% of the total GWP impact. In addition to decreasing solid CDW, the developed approach has significant potential for improvement by using more sustainable energy sources and reducing the amount of solid CDW generated.…"

Carbon Nanotube Effect on the Ductility, Flexural Strength, and Permeability of Concrete حسب Mohamed O. Mohsen (14590765)

"…The permeability coefficient (kT) decreased by at least 45% when CNTs were added to concrete. …"

Combined effects of treated domestic wastewater, fly ash, and calcium nitrite toward concrete sustainability حسب Abdelrahman Abushanab (17268940)

"…It was also shown that the addition of FA significantly decreased the chloride permeability of TWW concrete by 55%–71%. …"