Effect of Materials on the Properties of Fresh Cementitious Composites for 3D Printing—Short Review

The construction industry is increasingly turning to 3D printing technology as a sustainable and economical solution for building with concrete. This chapter provides a concise overview of the current state of 3D printable concrete, highlighting its advantages such as high performance, design freedom, and reduced construction time. However, it also addresses the challenges, including the need for precise ingredient adjustment to achieve the right rheological properties and durability, as well as the limited availability of printing equipment and skilled personnel. The chapter delves into the economic and environmental aspects, comparing 3D printed concrete with traditional construction methods. It reveals that 3D printing can significantly reduce costs and CO2 emissions, making it a promising solution for sustainable construction. The text also explores the use of supplementary cementitious materials and industrial waste, such as copper slag, to further enhance the properties and sustainability of 3D printable concrete. By examining the latest research and practical applications, this chapter offers a comprehensive look at the future of 3D printing in the construction industry.