Next-Gen Cementitious Composites for Sustainable Construction

This Reprint presents recent advances in next-generation cementitious composites for sustainable construction. It focuses on low-carbon, high-performance, and multifunctional materials, including alkali-activated and geopolymer composites, ultra-high-performance concrete, recycled aggregate and rubberized systems, fiber-reinforced and high-ductility composites, and smart or self-healing cementitious materials. The collected studies emphasize mechanical performance, durability, microstructural mechanisms, environmental impact reduction, repair and renovation applications, and emerging fabrication approaches such as digital and 3D printing technologies. By bringing together experimental, analytical, numerical, and application-oriented research, this Reprint supports the development of more resilient, energy-efficient, and environmentally responsible construction materials and structures.