Low-Carbon Pathways for Solid Waste Resource Utilization in High-performance Building Materials

As a key path in the field of low-carbon buildings, the development of solid waste resource-based building materials is constrained by core issues such as component fluctuations, interface defects, and the lack of standards. This paper proposes optimization strategies from three aspects: multi-scale component regulation, interface enhancement technology, and collaborative innovation throughout the entire industrial chain. The interface transition zone is strengthened through means such as nano-modification and chemical stabilization to reduce the chloride ion permeability coefficient to below 0.8×10-12 m2/s. Build a machine learning-driven performance prediction model to achieve intelligent optimization of material ratios; Promote the construction of a standardization system covering the entire chain from waste sorting, performance testing to project acceptance. Research shows that the compressive strength of the optimized geopolymer concrete reaches 55MPa, its carbon emissions throughout its life cycle are reduced by 72% compared to traditional concrete, and its service life is extended to 70 years. This research provides theoretical support and technical paradigms for the large-scale low-carbon application of resource-based building materials.