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Glass Fibers

What is AR glass fibres?

AR (Alkali-Resistant) glass fibers are synthetic fibers specially designed to withstand the highly alkaline environment of concrete. These fibers are added to concrete to enhance its strength, durability, and crack resistance. They are commonly used in various construction applications such as pavements, precast elements, and architectural panels. AR glass fibers provide improved crack control, reduced maintenance, and design flexibility, making them an essential reinforcement material for modern concrete structures.

Types of AR Glass Fibers

  • Single-End Rovings: Continuous strands of AR glass fibers wound onto a cylindrical package, suitable for filament winding, pultrusion, and weaving processes.
  • Chopped Strands: Short lengths of AR glass fibers chopped into discrete segments, used as reinforcement in thermoplastic and thermoset composites for injection molding and compression molding applications.

Advantages of AR Glass Fibers

  • Alkali resistance ensures long-term durability.
  • High tensile strength enhances structural integrity.
  • Excellent resistance to environmental factors like moisture and chemicals.
  • Flexibility allows for versatile application in various concrete mix designs.
  • Effective crack control minimizes the risk of structural failure.
  • Lightweight properties ease handling and transportation.
  • Sustainable alternative to traditional reinforcement materials like steel.

Disadvantages of AR Glass Fibers

  • Higher initial cost compared to some traditional reinforcement materials.
  • Limited availability in some regions may impact accessibility.
  • Requires careful handling during installation to prevent fiber breakage.
  • Potential for fiber protrusion if not properly mixed into concrete.
  • May require specialized equipment for handling and mixing in large-scale projects.
  • Limited research and standardized guidelines compared to traditional reinforcement materials.

Technical Data Sheet (TDS) - AR Glass Fibers

Property Value
Fiber Diameter 9 - 13 microns
Tensile Strength 2,500 - 4,000 MPa
Modulus of Elasticity 72 - 76 GPa
Density 2.54 - 2.58 g/cm^3
Filament Tex 17 - 68 tex
Alkali Resistance Excellent
Operating Temperature Up to 600°C
Moisture Content < 0.2%
Length Customizable