Basalt FAQ: Common Questions About Basalt and Its Applications
​Q. WHAT IS BASALT?
A. Basalt is a common extrusive volcanic rock, and it is the generic term for solidified volcanic lava. It is found worldwide and is known for its thermal properties, strength, and durability.
Q. WHAT IS A BASALT FIBER?
A. Basalt fiber is a material made from extremely fine fibers of basalt rock. It is composed of minerals like plagioclase, pyroxene, and olivine. Basalt fiber shares similarities with carbon fiber and fiberglass but offers better physical and mechanical properties than fiberglass while being more cost-effective than carbon fiber. It is used in various industries, including aerospace and automotive, for its fireproof and insulative properties.
Q. HOW IS BASALT FIBER MANUFACTURED?
A. Basalt fiber is produced by melting quarried basalt rock at temperatures between 1450 to 1500 degrees Celsius. The molten rock is then extruded through small nozzles to create continuous filaments of basalt fiber. These fibers typically have a diameter of 9 to 13 microns.
Q. WHAT MAKES BASALT SPECIAL?
A. Basalt is unique due to its superior thermal protection, high strength, and durability. It can withstand temperatures from -260°C to +982°C (-1800°F) and has a melting point of 1450°C. Basalt fibers and products are non-carcinogenic, non-toxic, durable, resistant to various environmental factors, and have many applications.
Q. WHAT IS BASALT GEO MESH?
A. Basalt Geo-Mesh is used for pavement reinforcement and offers several advantages over metal or glass fiber, including ecological safety, high-temperature resistance, strength, and durability. It is lighter and provides up to a 47% increase in asphalt surface life on roads and highways.
Q. DOES BASALT REBAR MEET ACI CODES?
A. Yes, Basalt FRP Rebar meets ACI (American Concrete Institute) codes. It is specified by ACI 440.5-08 and tested according to ASTM D7205 and other methods. It easily meets the performance requirements of ACI 440.6-08.
Q. WHAT IS BASALT CHOPPED FIBER USED FOR?
A. Basalt Chopped Fiber is used to strengthen concrete pours and castings. It is stronger than fiberglass and doesn't chip off. Basalt fibers are coated with a sizing/binder to make them compatible with other materials.
Q. WHAT IS BASALT WOVEN FABRIC?
A. Basalt Woven Fabric is made from continuous-filament basalt yarns. It comes in varying thicknesses, weights, weave patterns, and techniques. Basalt fabrics are non-combustible, fire-resistant, and offer excellent tensile strength. They can withstand temperatures up to 1800°F (982°C) and are resistant to electromagnetic radiation. They find applications in various industries, including fire protection, construction, and clothing.