Basalt Rebar is an excellent choice for concrete reinforcement. It weighs four times less than steel rebar and has three times the tensile strength. Pultrusion technique is used to create basalt rebars from basalt fibers. The surface is sanded and contoured. Corrosive conditions are not a problem for basalt rebar. It can be painted if desired. Basalt fiber is the name given to natural polymers found in volcanic rock. There are two main types of basalt fiber: green and white. Green basalt fiber is made up of thin sheets of glass separated by layers of a fibrous material that is mostly silicon dioxide. White basalt fiber is made up of long strands of glass with small amounts of other materials such as clay or talc mixed in. Basalt fiber has many advantages for making composites. It's lightweight, durable, and resistant to corrosion. It also has good thermal properties so it can be used where heat resistance is required. Basalt fiber is used in products that require strong, lightweight materials that are also resistant to chemicals. These include race cars, aircraft, and boats. Reinforcement is the term given to elements added to a material to improve its mechanical properties. Reinforcements can be organic (wood) or inorganic (metal). Organic reinforcements include fibers, fabrics, and papers. Inorganic reinforcements include rods, wires, and tubes.