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High-Performance Materials

PE Fiber

Polyethylene (PE) Fiber, a high-performance synthetic reinforcement material, is produced from high-density polyethylene (HDPE) resin via melt spinning and drawing processes. As a supplementary reinforcement for concrete, PE fiber addresses key limitations of traditional materials like steel, gaining widespread adoption in civil engineering due to its outstanding mechanical properties and cost-effectiveness.

When integrated into concrete, PE Fiber forms a three-dimensional network that restricts the movement of cementitious particles. This structure reduces drying shrinkage by over 10% and mitigates crack formation—both crack width and area decrease significantly with proper fiber dosage, ultimately enhancing the composite’s structural integrity.

What are the key features of PE fiber?

-Ultra-high tensile strength (2.8–4.5 GPa) and elastic modulus (105–125 GPa)

-Excellent abrasion and impact resistance

-Strong resistance to chemicals, alkalis, and UV radiation

-Lightweight (density 0.97–0.98g/cm³) with low water absorption

-Easy to handle, mix, and disperse in concrete without clumping

-Stable performance within a wide temperature range

Technical Data:

What are the advantages and benefits of PE fiber?

-Cost-Saving Alternative: 50% lower transportation and labor costs than steel; eliminates anti-corrosion maintenance expenses.

-Enhanced Concrete Durability: Reduces drying shrinkage and creep; extends service life of structures by 20%–30%.

-Superior Crack Control: Inhibits micro-crack initiation and propagation, improving impermeability and frost resistance.

-Non-Destructive Construction: Won’t scratch mixing equipment or formwork, reducing wear-and-tear costs.

-Versatile Compatibility: Works with all concrete types (including high-strength) and common admixtures.

-Efficient Construction: Simplifies mixing process and shortens construction time by 15%.

Is there any recommended dosage of PE fiber?

Dosage varies by concrete performance requirements, with a general range of 0.9–1.5kg per cubic meter of concrete:

-General crack prevention (residential floors): 0.9–1.1kg/m³

-Medium reinforcement (industrial pavements): 1.2–1.3kg/m³

-High-performance concrete (bridge decks/airports): 1.4–1.5kg/m³

-Consult our technical team for customized dosage based on project design.

How to mix PE fiber to concrete? 

1.Add coarse/fine aggregates and PE Fiber into the mixer first.

2.Dry mix for 60–90 seconds to ensure full fiber dispersion (avoid agglomeration).

3.Add cement, water, and admixtures, then wet mix for 120–180 seconds until uniform.

4.Key note: For precast concrete, extend wet mixing time by 30 seconds to enhance fiber-matrix bonding.

What applications is PE fiber utilized for? 

1. Transportation Infrastructure

-Highway and municipal road pavements; bridge decks and approach slabs

-Airport runways, aprons, and taxiways

-Tunnel linings and subway station structures

2. Building & Water Engineering

-Residential and commercial building floors, shear walls, and basements

-Dams, reservoirs, and sewage treatment plant structures

-Retaining walls, slope protection, and precast concrete products

How to store and handle PE fiber? 

PE fibers should be stored properly to keep its properties and performance.

-Store in a cool, dry warehouse with temperature 15–25℃ and relative humidity 40%–60%.

-Avoid direct sunlight, high temperatures (＞50℃), and open flames to prevent fiber aging.

-Keep away from strong acids, alkalis, and organic solvents to avoid chemical degradation.

-Seal packaging after partial use. Shelf life is 24 months under proper storage conditions.

-Stack no more than 8 layers to prevent packaging deformation and fiber clumping.

FAQ

Question 1: Can PE Fiber replace steel reinforcement?

A1: No. It’s a supplementary material. Use it with steel to enhance crack resistance and reduce steel dosage by 10%–15%.

Question 2: Is PE Fiber suitable for high-strength concrete?

A2: Yes. PE fiber improves toughness of C80+ concrete without affecting compressive strength.

Question 3: What’s the recommended fiber length of PE fiber for different projects?

A3: 3–6mm for thin precast panels; 12–19mm for pavements; 24–30mm for bridge decks.

Question 4: Can PE fiber be used in cold regions with freeze-thaw cycles?

A4: Yes. PE fiber reduces cracks (water channels), improving freeze-thaw resistance. Increase dosage by 0.2kg/m³ in -15℃+ areas.

Question 5: How to check if the PE fiber is well-dispersed?

A5: No fiber clumps in fresh concrete = good dispersion. For hardened concrete, cut a sample and observe the cross-section.

Question 6: Is PE fiber compatible with concrete admixtures?

A6: Fully compatible with superplasticizers and air-entraining agents. Do a small-batch test for high-admixture dosages.

Question 7: Does PE Fiber affect concrete’s setting time?

A7: No. Its chemical stability ensures no impact on concrete’s setting or hardening process.