Alkali-Resistant Glass Fiber for Concrete Reinforcement

High-Performance SFT-AR GlassFiber for GFRC, Mortar, and Precast Concrete

What Is Alkali-Resistant Glass Fiber?

Alkali-Resistant Glass Fiber (AR Glass Fiber) is a specialized reinforcement material designed for use in cement-based products and concrete applications. Manufactured from a specially formulated glass composition, these fibers are engineered to withstand the alkaline environment commonly found in concrete.

Unlike conventional glass fibers, AR fibers are specifically developed for compatibility with cementitious materials. According to the International Glassfibre Reinforced Concrete Association (GRCA), alkali-resistant fibers are essential for GFRC applications because conventional glass fibers can deteriorate in the highly alkaline environment of cement-based materials.

SFTec’s SFT-AR GlassFiber provides high tensile strength, excellent stiffness, and corrosion resistance. It can be incorporated into concrete and mortar mixtures to improve their mechanical performance while supporting efficient production processes.

Benefits of SFT-AR GlassFiber for Concrete Applications

Alkali-Resistant Glass Fiber offers several advantages for manufacturers working with Glass Fiber Reinforced Concrete (GFRC), ready-mix concrete, and precast concrete products.

High Tensile Strength and Reinforcement Performance

SFT-AR GlassFiber has a tensile strength of 1,700 MPa and a modulus of elasticity of 70 GPa. These properties make it suitable for reinforcing cement-based composites where mechanical performance and material durability are important considerations.

When properly incorporated into a concrete mixture, the fibers can contribute to improved tensile performance and crack control, depending on the application and mix design.

Corrosion Resistance

Unlike conventional steel reinforcement, glass fibers do not rust. This characteristic makes them attractive for cementitious applications where exposure to moisture and environmental conditions may affect long-term material performance.

Lightweight and Easy Integration

Glass fiber reinforcement can be incorporated into concrete and mortar mixtures during production. Depending on the formulation and reinforcement requirements, it may also contribute to weight-efficient designs and optimized material usage.

Applications of Alkali-Resistant Glass Fiber

SFT-AR GlassFiber is particularly suitable for several applications within the construction and concrete manufacturing industries.

Premix Glass Fiber Reinforced Concrete (GFRC)

In premix GFRC production, reinforcement fibers are incorporated directly into the cementitious mixture, distributing reinforcement throughout the material. The Precast/Prestressed Concrete Institute (PCI) provides technical guidance for GFRC manufacturing and specifications, helping construction professionals understand the requirements for producing glass fiber reinforced concrete components.

Mortar Reinforcement

AR glass fibers can be used in compatible mortar formulations to support mechanical performance and help manage cracking. Their suitability depends on the mixture composition, fiber dosage, and intended application.

Ready-Mix Concrete

Glass fiber reinforcement can be considered for ready-mix concrete applications where dispersed fibers are specified as part of the overall mix design.

Precast Concrete Manufacturing

Precast manufacturers can incorporate these fibers into compatible concrete mixtures for components produced in controlled manufacturing environments.

SFT-AR GlassFiber Technical Specifications

SFTec offers reinforcement fibers with the following published material properties:

These specifications provide engineers and manufacturers with technical information to help evaluate material compatibility and reinforcement requirements.

Actual performance depends on the cementitious formulation, fiber dosage, mixing process, and curing conditions. Product selection should follow project specifications and appropriate testing procedures.

Choose SFTec for Glass Fiber Reinforcement Solutions

SFTec supplies innovative reinforcement materials for the construction industry, helping manufacturers explore alternatives for concrete and cement-based applications.

Our Alkali-Resistant Glass Fiber product combines mechanical strength, corrosion resistance, and versatility for GFRC, mortar, ready-mix, and precast concrete production.

SFT-AR GlassFiber is available for sale exclusively in the GCC-MENA regions and Africa.

Find an authorized SFTec distributor or contact our team for product specifications, technical documentation, and regional availability.

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