This study investigates the impact of basalt fiber reinforcement on the mechanical and chemical properties of concrete in protected buildings and structures. Basalt fibers, derived from melting basalt rock at high temperatures, are recognized for their sustainability and environmental friendliness. The research aims to determine the optimal percentage of basalt fibers (0.1% to 0.3%) that enhances mechanical properties such as tensile, compressive, and bending strengths. Additionally, it evaluates performance indicators like void content, water absorption, chloride ion permeability, alkali and slag resistance, temperature stability, shrinkage characteristics, and abrasion resistance. The findings indicate that basalt fiber-reinforced concrete exhibits superior mechanical and chemical performance, particularly in alkaline environments, with enhanced chloride resistance and temperature stability. The study concludes that basalt fibers are beneficial for improving the durability and protection of concrete structures, making them a promising material for structural engineering applications.This study investigates the impact of basalt fiber reinforcement on the mechanical and chemical properties of concrete in protected buildings and structures. Basalt fibers, derived from melting basalt rock at high temperatures, are recognized for their sustainability and environmental friendliness. The research aims to determine the optimal percentage of basalt fibers (0.1% to 0.3%) that enhances mechanical properties such as tensile, compressive, and bending strengths. Additionally, it evaluates performance indicators like void content, water absorption, chloride ion permeability, alkali and slag resistance, temperature stability, shrinkage characteristics, and abrasion resistance. The findings indicate that basalt fiber-reinforced concrete exhibits superior mechanical and chemical performance, particularly in alkaline environments, with enhanced chloride resistance and temperature stability. The study concludes that basalt fibers are beneficial for improving the durability and protection of concrete structures, making them a promising material for structural engineering applications.