UV-Resistant Polypropylene Fiber for Outdoor Construction

• Customization: Available
• Color: White
• Function: Crack Prevention, Crack Repair, Crack Sealing
• Model NO.: PP-2
• CAS No.: 9003-07-0
• Einecs No.: 618-346-2
• Melting Point: 160–170°c
• Transport Package: Bag
• Specification: 25kg/bag
• Origin: China
• HS Code: 550390
• Production Capacity: 50000mt/Year
• Package Size: 10.00cm * 10.00cm * 10.00cm
• Package Gross Weight: 1.000kg

Product Description

Polypropylene (PP) Fiber is a high-performance synthetic fiber widely used in concrete and mortar to improve crack resistance, durability, and impact strength. It is non-corrosive, chemically stable, and enhances structural integrity without affecting workability.

 

Functional Properties

- Crack Resistance - Reduces plastic shrinkage cracks in concrete/mortar.
- Impact Resistance - Enhances durability in shotcrete & precast elements.
- Chemical Stability - Resistant to alkalis, acids, and chlorides.
- Non-Corrosive - Safe for reinforced concrete (unlike steel fibers).
- UV-Resistant Options - For outdoor applications (e.g., pavements).

 

Specifications

 

Parameter	Micro Fiber	Monofilament Fiber	Fibrillated Fiber
Fiber Length	3-12 mm	6-50 mm	12-50 mm
Diameter	10-30 µm	20-100 µm	20-200 µm (network)
Tensile Strength	400-800 MPa	300-600 MPa	250-500 MPa
Elongation at Break	15-25%	15-30%	20-35%
Melting Point	160-170°C	160-170°C	160-170°C
Density	0.91 g/cm³	0.91 g/cm³	0.91 g/cm³

 

Application

 

1. Concrete & Mortar Reinforcement

• Dosage: 0.6-1.8 kg/m³ (depends on fiber length).

• Benefits: Reduces cracks in slabs, floors, and tunnels.
   

2. Shotcrete (Sprayed Concrete)

• Fiber Type: 12-50 mm monofilament.

• Advantage: Improves rebound resistance and cohesion.
   

3. Asphalt Paving

• Usage: 0.1-0.3% by weight of bitumen.

• Function: Prevents reflective cracking in roads.
   

4. Geotextiles & Soil Stabilization

• Fibrillated Fiber: Used in erosion control mats and embankments.
   

5. Plaster & Stucco

• Micro Fiber (3-6 mm): Prevents shrinkage cracks in thin layers.

Recommended Dosage

 

1. General Concrete Slabs & Floors

• Fiber Type: Monofilament (12-19 mm).

• Dosage: 0.9-1.8 kg/m³ (0.1-0.2% by volume).

• Benefits: Reduces plastic shrinkage cracks by 50-70%.
   

2. Shotcrete & Sprayed Mortar

• Fiber Type: Monofilament (25-50 mm).

• Dosage: 1.0-2.0 kg/m³.

• Benefits: Improves rebound resistance and cohesion.
   

3. Thin Mortar & Plaster (Repair Work)

• Fiber Type: Micro Fiber (3-6 mm).

• Dosage: 0.6-1.2 kg/m³.

• Benefits: Prevents hairline cracks in layers <50 mm.
   

4. High-Performance Concrete (HPC)

• Fiber Type: Hybrid (Micro + Monofilament).

• Dosage: 1.5-3.0 kg/m³.

• Benefits: Enhances flexural strength and fatigue resistance.
   

5. Precast Concrete Elements

• Fiber Type: Fibrillated (20-40 mm).

• Dosage: 0.8-1.5 kg/m³.

• Benefits: Reduces breakage during demolding/transport.

 

Package and storage

 

• Packaging:

  • 1 kg / 5 kg / 25 kg sealed bags.

  • Bulk: 500 kg FIBC bags (anti-UV treated).
     

• Storage:

  • Keep dry (humidity <60%) and away from heat.

  • Shelf life: 3 years (unopened).

 

FAQs

Q1: Can PP fibers replace steel fibers or rebar?
→ No, they complement reinforcement by controlling micro-cracks. For structural loads, use with rebar/steel fibers.
 

Q2: Does fiber length affect performance?
→ Yes:

• Short fibers (3-12 mm) → Crack control in thin sections.

• Long fibers (20-50 mm) → Improves toughness in thick elements.
   

Q3: Is fiber dispersion a problem?
→ No if mixed properly. Avoid clumping by adding fibers gradually.

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