Impact of Glass Powder as a Sustainable Material on the Workability, Strength, and Durability Properties in High-Performance Basalt Fiber Re

The global construction sector is increasingly challenged to balance environmental sustainability with the growing demand for durable, high-performance materials. As cement production continues to be a major source of anthropogenic CO2 emissions, the incorporation of alternative, low-impact binders has become a key strategy for reducing the environmental footprint of concrete. In this context, glass powder (GP)—a finely ground industrial by-product rich in amorphous silica—has emerged as a promising partial replacement for Portland cement. Its pozzolanic reactivity contributes to improved hydration and matrix densification, while its use also supports circular economy principles by diverting waste glass from landfills. At the same time, basalt fibers have attracted considerable attention as an advanced reinforcement material due to their high tensile strength, chemical stability, and thermal resistance. Their inclusion in concrete has been shown to enhance ductility, limit crack propagation, and improve overall mechanical performance. The potential synergy between glass powder and basalt fibers therefore presents an attractive opportunity to develop composite concrete systems that simultaneously address structural performance and environmental considerations. Within this framework, the present study conducts an experimental and statistical investigation into the combined effects of GP and basalt fibers in high-performance concrete, focusing on key performance indicators including workability, compressive strength, tensile strength, flexural strength, and durability under aggressive exposure conditions. The results indicate that incorporating glass powder at selected replacement levels can lead to favorable mechanical performance, particularly when used in conjunction with basalt fibers. These findings highlight the potential of multi-component material systems to enhance the sustainability of concrete, while also underscoring the importance of considering site-specific conditions and climatic influences when optimizing mixture design.