Crack resistance enhancements for cement and concrete
Polypropylene Fiber for Concrete – SFT-WavePPFiber
Polypropylene Fiber for Concrete is an innovative reinforcement solution designed to improve crack resistance, durability, and overall concrete performance. SFTec’s SFT-WavePPFiber is a high-performance synthetic fiber manufactured using specialized parallel drawing, wave-forming, and surface treatment processes.
Its unique structure promotes even fiber distribution throughout concrete mixtures, helping reduce cracking and improve reinforcement efficiency. This lightweight, corrosion-resistant material provides a practical solution for modern construction applications.
What Is Polypropylene Fiber (or SFT-WavePPFiber) for Concrete?
SFT-WavePPFiber is a polypropylene bundle wave fiber, also known as polypropylene threaded fiber, developed to enhance the crack resistance of cement-based materials.
Manufactured from synthetic polypropylene resin, its specially treated surface and wave-shaped profile improve mechanical interaction with the surrounding concrete matrix.
The material also offers excellent alkali resistance, making it suitable for use in cement-based environments where long-term material stability is important.
Key Benefits of Polypropylene Fiber for Concrete
Polypropylene Fiber for Concrete provides several advantages for construction professionals seeking improved durability, crack resistance, and overall concrete performance.
- Enhanced Crack Resistance: Helps control the formation and propagation of cracks caused by shrinkage and internal stresses.
- Excellent Fiber Dispersion: Distributes throughout concrete mixtures to provide consistent reinforcement when properly mixed.
- Strong Mechanical Bonding: Its wave-shaped structure improves mechanical anchorage within the concrete matrix.
- Corrosion Resistance: Unlike steel fibers, polypropylene does not rust when exposed to moisture.
- Alkali Resistance: Maintains material compatibility with the alkaline environment of cement-based products.
- Easy Installation: Simplifies mixing and handling without damaging conventional mixing equipment under appropriate operating conditions.
Applications of Polypropylene Fiber for Concrete
Polypropylene fiber reinforcement can be incorporated into various cement-based applications where crack control and durability are essential.
Potential applications include concrete slabs, industrial flooring, pavements, precast concrete elements, and other construction projects requiring improved resistance to cracking.
Its lightweight characteristics and effective dispersion make it suitable for different concrete mix designs, depending on project specifications and engineering requirements.
Why Choose SFTec’s Synthetic Fiber Reinforcement?
At SFTec, we provide advanced reinforcement solutions designed to support durable and efficient concrete construction.
SFT-WavePPFiber combines corrosion resistance, excellent dispersion, and improved crack control to help maintain concrete quality and long-term performance.
For additional technical information on fiber-reinforced concrete, consult the American Concrete Institute (ACI).
Looking for reliable polypropylene reinforcement for your next project?
Contact SFTec to explore product specifications, available configurations, and concrete reinforcement solutions tailored to your construction needs.
Download Product Sheet
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Packing: regular packing 1.0kg/bag, or according to user’s requirements.
| Size (Width*Length) | Color | Tensile Strength | Gravity (g/cm3) | Melting Point (°C) |
|---|---|---|---|---|
| 0.9 +/- 0.2 mm * 25 mm | Nature/Black | > 400 MPa | 0.91 - 0.95 | 160 - 170 |
| 0.9 +/- 0.2 mm * 36 mm | Nature/Black | > 400 MPa | 0.91 - 0.95 | 160 - 170 |
| 0.9 +/- 0.2 mm * 40 mm | Nature/Black | > 400 MPa | 0.91 - 0.95 | 160 - 170 |
Dosage:
It is recommended to add 3kg per cubic meter of concrete.
Length selection:
Generally, 36mm for anti-cracking reinforcement; when mixed into shotcrete, the length is preferably no more than 25mm. Avoid using gauges larger than 35mm.
Proportion design:
In general, it is not necessary to change the grade and proportion parameters of concrete.
Considering the crack resistance performance requirements of concrete, it can be used in conjunction with adding 0.9 kg of monofilament fiber per square concrete.
Mixer selection:
Choose a double-shaft horizontal forced mixer.
Feeding and Mixing Process
- Put in crushed stone first
- Put in reinforcing ribs, then put in sand
- Stir for 2 minutes to fully disperse the reinforcing ribs
- Put in cement and water and stir evenly according to the conventional process
- It can also be constructed according to the sequence of conventional process input, but the mixing and stirring time should not be less than 4 minutes, and the vibrating time should be extended appropriately to make the fiber fully mixed.