One is environmental protection, basalt fiber has the characteristics of resource conservation and environmental friendliness. "Basalt fibers come from natural stones and are used in artificial stones. Stones come and go." Specifically, basalt fiber is a continuous fiber made of natural basalt as raw material, which is melted at a high temperature of 1450°C to 1500°C, and then quickly drawn through a platinum-rhodium alloy drawing shoe. During the entire production process, there is no industrial wastewater, or waste gas, and The production of other industrial waste is known as "new materials of the 21st century". Second, compared with other types of fibers such as lignin fiber and glass fiber, it has high technical indicators for road use and has excellent high-temperature resistance, low-temperature resistance, chemical stability, anti-aging performance, water stability, and electrical insulation performance. According to the current theoretical research, scientific and technological research, and engineering application, the production process and technology of basalt fiber for roads are very mature, which can effectively reduce the damage of cracks and ruts on the road surface, greatly prolong the service life of the road surface, and improve and enhance the pavement structure. Fatigue performance, high-temperature stability, low-temperature crack resistance and water stability have significant effects. At the same time, the materials have various application forms such as chopped yarn, geotextile, geogrid, composite reinforcement, etc., showing excellent road performance and application prospects. Third, basalt fiber is widely used, including in civil engineering transportation, automobile manufacturing, road construction, etc.