Application of Basalt Fiber Reinforcing Bar in Construction Engineering
Application of basalt fiber rebar in construction engineering, and comparison of rebar 1. Physical properties of basalt fiber composite bars 1. Density: The density of fiber composite bars is between 1.9-2.1g/cm ³ , which is only 1/4 of that of steel bars. 2. Thermal expansion coefficient: The longitudinal and lateral thermal expansion coefficients of fiber-reinforced composite bars are different, mainly depending on the type of fiber, resin and fiber volume ratio. The longitudinal coefficient of thermal expansion is affected by the fiber properties, while the transverse coefficient is mainly affected by the resin. The table below lists the transverse and longitudinal coefficients of thermal expansion of steel bars and different types of fiber composite bars. 2. Application of Basalt Fiber Reinforcing Bar in engineering 2.1 Application of underground engineering Underground engineering refers to: underground parking lots, underground pedestrian passages, subway stations, tunnels,