The growing demand for sustainable construction materials is critical to reduce environmental burdens, especially in rapidly urbanizing Saudi Arabia. This review advanced the eco-development of recycled scrap-tire steel fiber (STSF) concrete by linking STSF recovery and processing routes, fiber geometry, cleanliness, and tensile quality to interfacial micromechanics and composite performance. It proposed a unified STSF classification, supported by effect-size synthesis, to standardize reporting, reconcile disparate test methods, and enable performance based specifications. The review systematically evaluated how STSF length, diameter, and dosage influence strength, toughness, crack control, and structural response, while also assessing sustainability and structural efficiency gains through waste diversion and reduced carbon intensity. Evidence across the literature is synthesized to identify effective reinforcement strategies, key dispersion and bonding mechanisms, and practical mix optimization pathways aligned with Saudi supply chains and exposure conditions. The findings underscore the potential of STSF-based composites to contribute to eco-efficient construction, enhancing the mechanical resilience and lifespan of concrete structures. Moreover, this research provided a critical foundation for future studies and practical implementations, positioning STSF as a strategic component in advancing green construction practices within Saudi Arabia and globally. The study reinforced circular-economy principles with sustainable materials for global construction. Besides, it outlined a practical, micromechanics-guided route from waste-tire recovery to field-deployable high-performance concrete in the Kingdom of Saudi Arabia.

waste management, tire wastes, recycled scrap tire steel fiber, properties, performance, applications