This edited volume presents a comprehensive overview of emerging advances in smart materials and sustainable solutions for next-generation civil infrastructure systems. As global challenges such as climate change, urbanization, and aging infrastructure intensify, there is an urgent need for innovative approaches that integrate materials science, digital technologies, and sustainable engineering practices.The book brings together international experts to address key topics including advanced cementitious materials, ultra-high-performance concrete, additive manufacturing in construction, sensor-based infrastructure monitoring, machine learning applications in materials design, and circular economy approaches in construction. It emphasizes the transition from conventional infrastructure systems toward intelligent, resilient, and low-carbon infrastructure supported by lifecycle-based engineering and data-driven decision-making.This volume provides a multidisciplinary perspective bridging materials science, structural engineering, and digital infrastructure systems. It serves as a reference for researchers, engineers, and policymakers working toward sustainable infrastructure development.