reinforcing fiber for asphalts

better roads with better technology

As a vehicle stops, the force drives down into asphalt and supporting layers, causing stress and fatigue where the tires meet the road.

As a vehicle stops, Para fibers spread the force throughout the treated, layer, reducing stress and fatigue where the tires meet the road.

How Parafiber Works?

Parafibered asphalt builds stronger asphalt surfaces, and stronger roads are safer roads. Parafibered asphalt reduces maintenance,thereby reducing future costs and extending the useful life of pavement. Asphalt reinforced with Parafiber has improved tensile strength and resilient modulus and improved Marshall stability and Flow.

Easy to Use

Easily metered automatically or manually

 

Mixes in drum plants at any speed or batch plants

 

Mixes thoroughly in seconds

 

Distributes uniformly and completely

 

Your current asphalt mixture

 

Asphalt plant

 

Placement or compaction practices

 

Parafiber Specification

Thickness: 6 cm

Cracking Reflective Resistance After 2.5 hours

Thickness: 6 cm

Cracking Reflective Resistance After 10.5 hours

Parafibered asphalt builds stronger asphalt surfaces, and stronger roads are safer roads. Parafibered asphalt reduces maintenance, thereby reducing future costs and extending the useful life of pavement. Asphalt reinforced with Parafiber has improved tensile strength, resilient modulus and fatigue resistance.

Color Density (gr/cm3) Lenght (mm) Diameter (mm) Tensile Strength (MPa) Melting Point (°C) Water Abs. Alkali/Acid Resistance
White 1.18 12-18 <0.13 >1000 800-900 Nil Good

Parafiber is an engineered and versatile additive for asphalt which is combination of special fibers, chemical components and polymers that significantly improves quality of asphalt mixes. The use of Parafiber in asphalt mixes is approved and recommended by road authorities and consultants in many projects.

Quality Control

Quality control tests for fiber and polymer include dimension, tensile strength and other mechanical properties, which can be performed according to the following standards.

ASTM D7508, ASTM D7138, ASTM D570, ASTM D885-85, ASTM D2258

Parafiber dosage will be designed according to the mix design and properties, weather condition, traffic volume, layer’s thickness and other factors which affect the final result.

Generally recommended dosage rate of Parafiber is 2 kg per ton of asphalt mix.

Quality control tests for the Parafiber-ed asphalt must be performed according to following table. The results of these tests should be reported by the consultant or QC team after production of modified asphalt and they should compare with plain asphalt results.

Test Plain Asphalt Parafiber-ed Asphalt
Resilient Modulus Acc. to ASTM D4123 1 1.3
Dynamic Creep Acc. to BS-EN 12697-25 1 2
Indirect Tensile Fatigue 1 2

Adding to the mix

1- Parafiber can be added directly to the mix. When added to the mix, it must be added to the asphalt stream before it hits the aggregate.

2- The mixing time must be between 50 to 60 seconds.

3- It is extremely compatible with bitumen and thus very versatile in terms of addition.

Packaging

15 – 25 kg bag according to client order.

Resilient Modulus Test Results

• Test method : ASTM D4123
• Test load : 800 N haversine load of 0.1 s and rest time of 0.9 s
• Pulse count : 100 preconditioning pulses and 5 test pulses

• Test temperature : 25°C
• Test specimen : cylindrical specimens 100 mm in diameter
• Estimated poisson ratio : 0.35

Dynamic Creep Test Results

• Test method : BS DD226 draft method
• Test load : 100 kPa square pulse load of 1.0 s and rest time of 1.0 s

• Test temperature : 50°C
• Test specimen : cylindrical specimens 150mm in diameter

Fatigue Test Results

• Test method : EN12697-24
• Fatigue Testing Using Indirect Tensile
• Load shape : constant stress is 250 kPa, load time is 0.25 sec and rest time 1.25 sec

• Test temperature : 25 ° C
• Test specimen : cylindrical specimens 150mm in diameter
 

Cyclic Fracture Test Results

• Test method : semi circular bend (SCB)
• Test load : cyclic loading

• Test temperature : 0°C
• Test specimen : half circle with a diameter of 15 cm

Reflective Cracking Test Results

• Test method : simulation
• Test load : 690Kpa

• Test temperature : 20°C
• Test specimen : slab

Contact

Adress:

Barbaros Hayrettin Paşa Mah. Nazım Hikmet Bulvarı, Newista Residence A Blok No.84 / 146 34522 Esenyurt / İSTANBUL