Basalt fiber vs Steel fiber

Table of content:

  1. Comparison of Basalt fiber reinforced cement and Steel fiber reinforced cement 
  2. Technical properties, advantages and disadvantages
  3. Application of basalt and steel fiber reinforced concrete

Steel fiber was a very common building material for a long time. It was used for manufacturing different composites. But not so long ago at the building market appeared basalt fiber. It is a newcomer to fiber-reinforced polymers and innovative building material, which has many properties of use and collect good reviews from professional builders and simple customers. So, what is better: steel fiber or basalt fiber? What advantages or disadvantages of using have basalt and steel fiber? How to choose fiber for reinforcement and composite materials? Let’s sort out!

Steel fiber

Steel fiber commonly uses for concrete reinforcement. It makes cement stronger than classical concrete. It creates a list of technical properties of using steel fiber.

Technical advantages of steel-fiber reinforced concrete 

  • high specific energy of destruction
  • improving resistance to abrasion
  • improving compression strength
  • improving flexural strength
  • improving splitting tensile strength
  • reduces shrinkage cracking 

Technical disadvantages of steel-fiber reinforced concrete 

  • high cost (because of control/production issues and cost of raw material)
  • corrosion of steel fibers
  • reduces permeability

This ensures its successful application in harsh operating conditions and under the influence of unfavorable factors. 

Applications for steel fiber concrete 

  • tunnel construction
  • airport runways 
  • taxiways
  • playgrounds
  • maintenance hangars
  • access roads
  • workshops
  • port pavements
  • container storage
  • handling areas
  • bulk storage warehouses
  • warehouses. 

Also commonly used in composites, as it provides additional flexural strength.

Basalt fiber

basalt-fiber

The raw material of basalt fiber producing from natural volcanic rock. Tech properties of this material providing high chemical and thermal stability and produce no harmful gas or waste residue in the fiber production process. It is a kind of eco-green material that meets the requirements of environmental protection.

This material stands out for its strength, which is much higher than other kinds of natural fiber and synthetic fiber. Besides, its elastic modulus is similar to that of carbon fiber (which has a much higher price) and also higher than that of other fibers.

Addition of basalt fiber into concrete improves many technical properties of concrete:

  • improves the toughness of concrete
  • avoids brittle behaviors
  • corrosion resistance
  • low price
  • acidic and alkaline resistance
  • low and high-temperature resistance (fireproof)
  • wettability (waterproof)
  • has a higher compressive strength 
  • shear strength compared
  • suitability 
  • aging resistance in harsh environments  (long term using)
  • high elastic modulus and tensile strength 
  • preventing of cement cracking
  • increasing the energy absorption capacity of concrete

Disadvantages of using basalt fiber reinforced concrete:

  • Low in withstanding bending force. 

Applications for basalt fiber reinforced concrete 

Due to their superior characteristics, basalt fibers have a wide range of application areas:

  • industrial concrete floors 
  • runways in the airport 
  • motorway
  • industrial floors
  • in shops where heavy equipment is used
  • internal reinforcement of tunnels and channels 
  • military installation

Conclusion

steel-and-basalt-rebar

To sum up,  we can compare technical characteristics of steel and basalt fiber and conclude that basalt fiber reinforcement is better for any applications because of basalt fiber’s chemical and physical properties which provide a high quality of manufacturing composite material and products. Besides, it protects the environment and it is not harmful to human health. This is very important in making high-quality products at a low price.

Basalt fiber is innovative and multifunctional material, which can be used in different areas such as engineering, construction sector, the automotive sector, chemical and oil processing industry, the electronic sector, etc. So, everyone can find a basalt fiber applications for each industry.