This book presents the select contributions of the  2nd International Conference on Innovative, Sustainable materials and technologies and it provides an in-depth exploration of the most recent developments in sustainable engineering, emphasizing cutting-edge materials, techniques, and technologies that have paved the way to a more sustainable future. It provides readers with an extensive understanding of resource-efficient strategies, advanced green technologies, and environmentally friendly construction practices that are transforming the engineering field. The book effectively connects theoretical understanding with real-world applications, making it a valuable resource for researchers, professionals, and students to address the significant environmental challenges. The book covers significant aspects of sustainable engineering, including innovative substances like cement composites, recycled aggregates, and geopolymer concrete. It highlights developments in biomaterials and composite materials that are influencing the future of construction, as well as smart and nanomaterials. In addition to energy-saving and low-carbon technologies that aim to reduce global pollution and resource depletion, readers will also learn about life cycle assessment techniques that evaluate the environmental impact of building materials and methods. The book encourages the use of green building techniques, emphasizes the importance of reducing carbon footprints and increasing resource efficiency, and focuses on the importance of renewable energy systems integrated into infrastructure. It offers cutting-edge sustainable building solutions like fire-reinforced concrete, self-compacting materials, and self-healing concrete, all of which enhance the long-term resilience and economic viability of infrastructure. The book provides methods that greatly lessen environmental harm by dealing with waste minimization measures, the utilization of recycled materials, and the integration of renewable energy.