Research on sustainable bridge construction based on environmental protection

In the face of growing environmental concerns and the need for sustainable infrastructure, bridge construction has become a focus of innovation and research. This paper focuses on optimizing bridge design by reducing material usage, refining construction processes, and integrating green design principles. Exploring innovative materials like Supplementary Cementitious Material (SCM), Sugarcane Bagasse Ash, Construction and Demolition Waste (CDW), Polyolefin Fiber Reinforced Concrete (PFRC), and TiO2-based building materials, the study evaluates their structural viability, cost-effectiveness, and environmental impact. Results demonstrate the potential of these materials. SCM enhances concrete strength while reducing cement content, Sugarcane Bagasse Ash proves sustainable in non-structural elements, and CDW offers lightweight, eco-friendly solutions. PFRC serves as an alternative to steel reinforcement, balancing sustainability and strength. Additionally, TiO2-based materials showcase air purification and self-cleaning capabilities, promising low-maintenance structures. The research extends to novel techniques like bio-cementation and self-sustaining energy solutions, opening avenues for sustainable bridge construction. This study pioneers eco-conscious bridge engineering, offering tangible solutions for environmentally responsible, structurally sound, and economically viable bridges.