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New reinforced material for textile composite - Basalt fiber

By : Hireni Mankodi
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Principle Investigator of Career Award for Young Teacher


Textile Engineering Department, Faculty of Technology and Engineering,

M .S. University, Kalabhavan, Baroda: 390001, Gujarat, INDIA.

email: hir_mak@yahoo.com




Basalt fiber or fibre is a material made from extremely fine fibers of basalt, which is composed of the minerals plagioclase, pyroxene, and olivine. It is similar to carbon fibre and fiberglass, having better physicomechanical properties than fiberglass, but being significantly cheaper than carbon fibre. It is used as a fireproof textile in the aerospace and automotive industries and can also be used as a composite to produce products such as tripods.


Basalt fibres are used in a wide range of application areas such as the chemical, construction and marine sectors, not to mention the offshore, wind power, transport and aerospace industries. This is due to their superior properties: not only do they boast good mechanical and chemical resistance, but also excellent thermal, electric and acoustic insulation properties.




The raw material for basalt fibres is a naturally occurring mineral that belongs to the family of volcanic rocks. As a mineral, basalt ranges from dark gray to black. Basalt fibres are mineral fibres, which are 100% inorganic. Fibre compatibility to matrix resins is ensured by using organic sizing agents. Basalt is well known in rock form and is found in almost every country around the world. It is traditionally used as crushed rock in construction and road building.

The fibre is composed of 100 % mineral continuous filaments. The focus is on the range of 9 to 13 m for the filament diameters. These diameters give the best compromise between tenacity, suppleness and cost. They are also safely larger than the 5 m limit for non-respirability. As the product presents no hazard to health and environment, it is very suitable for asbestos replacement. The natural golden-brown appearance of the resulting fabrics, incidentally, can be covered for decorative purposes.


Main features of basalt fibre reinforcements.

  • High strength
  •   High modulus
  • Corrosion resistance
  • High temperature resistance
  • Extended operating temperature range
  • Easy to handle





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