Basalt fiber compare to Carbon fiber: What is better?

“How to choose fiber-based composite material?” is a common question between builders and building companies. The characteristics of basalt rock and carbon materials are similar, but not the same. There are many points of view on the topic “What is better: carbon fiber composite or basalt fiber?”

Advantages, disadvantages and technical characteristics of Basalt Fiber and Carbon fiber

Carbon fiber properties are:

  • Physical strength
  • Specific toughness
  • Lightweight
  • Good vibration damping
  • Chemical inertness
  • Fatigue resistance
  • Self-lubrication
  • High damping
  • Low abrasion

Carbon fiber disadvantages are the following:

  • Electrical conductivity
  • Electromagnetic properties
  • Difficult and costly to repair composites 
  • High price
  • Can give galvanic corrosion in contact with metals
  • Not eco-building material
  • It is difficult to recycle it compare to basalt or steel fiber-based products
  • If carbon construction is cracked you cannot fix it. Only replace it because the broken structure is not straight and safe anymore. It should be removed
  • More  time for manufacturing because of secondary bonding carbon fiber assemblies
  • Specific storage requirements (elevated temperatures and  using of vacuum bagging)

The disadvantages of using carbon fiber show specific requirements in manufacturing, storage, and using carbon fiber material. Besides, carbon composite materials are not easy to recycle which is wrong for our environment and can cause ecology pollution. In this question, basalt fiber is better because basalt rock is a natural organic material that does not harm nature and can be easily recycled. 

Advantages of using basalt fiber

  • Much cheaper than carbon fibers and other types of fibers
  • Mechanical and physical properties 
  • Fire resistance
  • Good resistance to chemically active environments 
  • Vibration and acoustic insulation capacity 
  • Heat and flame protection (fireproof)
  • Waterproof
  • Abrasion resistance

Disadvantages of using basalt fiber

  • Low in withstanding bending force. 

Carbon fiber usage for composite materials

Aerospace and nuclear engineering are the main applications for carbon fibers. Different engineering components such as bearings, gears, cams, fan blades, and automobile bodies are making from carbon fiber composites. It creates different ways of carbon fiber application:

  • Medical applications in prostheses, surgery and x-ray equipment
  • Textile machinery, genera engineering
  • Aerospace, road and marine transport
  • Audio equipment, loudspeakers
  • Chemical industry 

It is also profitable material for manufacturing carbon fiber roving, plates, rolls, carbon fabric, carbon fiber mat, carbon fiber cloth, carbon fibre sheet, etc.

Basalt fiber usage for composite materials

Basalt fiber technical characteristics and properties allow replacing high strength glass, silica, chemical resistant glass, and other special fibers in many applications. Chemical and physical properties make this material one of the best for any applications.

Basalt fiber composites applications

  • Concrete reinforcement
  • Polymer reinforcement
  • Woven and non-woven materials
  • Fireproof products
  • Composite materials for auto, aircraft, and shipbuilding
  • Asphalt-concrete reinforcement

Comparison of basalt and carbon fibers 

comparison-basalt-fiber

Source: https://www.slideshare.net/SUPREETHSuppi2/basalt-fiber-reinforced-concrete

The characteristics of basalt and carbon materials allow us to conclude that basalt fiber composites are eco-building materials with profitable technical and chemical characteristics that have low prices and the guarantee of long term use. 

If you have an intention to use basalt fiber – just send us your request to sales@technobasalt.com