Nothing Outperforms FORTA® Asphalt Fibers.

Designed for Hot Mix, Warm Mix, and Hot/Cold Patch Asphalt

FORTA-FI® is a high tensile strength synthetic fiber blend formulated to reinforce asphalt mixes in both new construction or rehab projects. The mix of aramid and polyolefin fibers is designed to enhance your current mix design. Aramid fibers will not melt in the asphalt mix and are known for their strength and durability in both high and low temperatures.


  • Designed for all working temperatures
  • Mix in batch or drum plants
  • Feeds easily
  • Distributes uniformly and completely
  • Improves tensile strength, resilient modulus, Marshall Stability, Flow, among other properties


  • Extreme Durability
  • Reduced Maintenance
  • Proven Performance


Stronger than your traditional mixture. Reduces cracking and rutting.

While we have known for years that adding reinforcing fibers to asphalt would substantially increase the life of that asphalt, it was very difficult to quantify the years and calculate that value for our customers. Recent research has provided more detail about the benefits provided by FORTA-FI asphalt fibers. Case studies developed by Arizona State University utilizing pavement design software [Mechanistic Empirical Pavement Design Guide (MEPDG)] detail the cost savings involved in reinforcing asphalt pavement using FORTA-FI. This research program also determines that the longevity increase would be 50% or more, beyond the same thickness of traditional asphalt.


[s201_bai id=”1″]




Click Here for Literature    Control vs. Fiber Project Examples



FORTA-FI is available in new, more efficient water resistant bags that maximize freight and storage.

FORTA-FI Packaging


FIBER EXPERTS ON STAFF Ready to Answer Questions & Aid in Technical Support

At the Plant

To manually feed fibers or to use an automated Fiber Metering Device? You decide! FORTA-FI® is easy to add to your mix no matter how you add your fibers!

Different Challenges

See how FORTA-FI® meets the challenges in various applications.


See how FORTA-FI® can extend the life of asphalt.

Solving Asphalt Cracking Problems

FORTA-FI® can reinforce asphalt to prevent cracking.

FORTA-FI® Research Trials

See how FORTA-FI® performed in various trials.


FORTA-FI® is uniquely capable of solving many rutting problems.

FORTA-FI® vs. Fabric

FORTA-FI® is a three-dimensional reinforcement for asphalt.

Tested and Proven!

FORTA-FI® has been extensively tested with proven results!

Easy to Use

See how easy it is to add FORTA-FI® to your mix!

Cost Effective

See how FORTA-FI® can save you money now and down the road!

Made in America

See how FORTA-FI® can help strengthen America's infrastructure while lessening the tax burden.

Fiber Reinforcement is Not Generic

See how FORTA-FI® outperforms conventional fibers.

What is FORTA-FI®?

Learn how you can save by adding FORTA-FI® to your mix!

When is FORTA-FI® added to the asphalt mix and will it create problems for the asphalt producer?

No, FORTA-FI® can be added by the bag, or through one of the various types of fiber feeders,  via the RAP port, or hot bin doors in a batch plant. The fibers should be introduced before the addition of the liquid asphalt.
While the fibers disperse uniformly in seconds, it’s best to allow 3 to 5 seconds of dry mixing time before addition of liquid asphalt.
The use of FORTA-FI® will not require any special plant modifications.

Will FORTA-FI® create any placement or compaction problems?

No, FORTAfied® asphalt is placed and compacted exactly as conventional asphalt pavement.

How can such a small dose of FORTA-FI® do so much to strengthen my asphalt mix?

FORTA-FI® is a blend of several different fibers that each play an important role in the reinforcement of asphalt. The high temperature fibers are among the strongest fibers made, and are only 1/10th the diameter of a human hair. Some fibers are designed to melt into the asphalt mixture aiding in the dispersion and adhesion of the of the high-temperature fibers while enhancing both the cold and hot properties of your asphalt design. The combination of these fibers in the recommended dosage creates significant improvement in tensile strength with over 18 million fibers per ton of asphalt mix.

Will doubling or tripling the dose of FORTA-FI® make my asphalt mix two or three times as strong as a single dose?

Research, and our many projects around the world have shown that the recommended dosage of one (1) pound bag of FORTA-FI® fibers per one (1) ton of asphalt is optimal in most circumstances. While there may be cases where different dosages may prove to be beneficial, those projects will need to be consulted and verified for each individual application.

How did you calculate the asphalt thickness savings and longevity increases?

Both the asphalt savings and increased longevity were calculated utilizing performance testing results conducted by Arizona State University and the Mechanistic Empirical Pavement Design Guide (MEPDG).

Is this new technology?

FORTA Corporation patented this technology in 1982 and has successfully used fiber-reinforcement in asphalt in several projects around the world.

Can FORTA-FI be mixed in either batch or drum plants?

Yes, the new packaging assures that FORTA-FI® will disperse uniformly in both batch and drum plants.

How long does FORTA-FI take to mix, and will it mix at high production speeds?

Provided the proper production temperatures are maintained, FORTA-FI® will disperse uniformly in seconds at all production speeds. High percentages of RAP may require longer mixing time.

How can FORTA-FI save money on the initial project cost?

Immediate cost savings are made possible by reduction in asphalt thicknesses up to 35%. Additional savings are realized through shorter construction schedules, fewer trucks, fewer lifts, etc.

How can FORTA-FI save money over the life of the project?

FORTAfied® asphalt of the same thickness and your conventional asphalt will last more than 50% longer. Longer life results in less maintenance and resurfacing over the design life of the asphalt.

Is FORTA-FI only for HMA, or can I use it for WMA or Patch mixes as well?

FORTA-FI® is the newest generation of fiber-reinforcement for asphalt and has been designed for use in all three

Does the Asphalt producer need to pre-measure the FORTA-FI® fibers?

No, FORTA-FI® is typically packaged in a one (1) pound bag per one (1) ton of asphalt dosage (bag and all). While different bagged dosages are available for batch mixing if necessary, the process still requires no measuring.

Are there any reference projects or case studies demonstrating the success of FORTA-FI?

Results and details from our research project conducted by Arizona State University, as well as project profiles, and DOT pilot projects are available on our website and upon request. FORTA-FI® has had pilot projects in PA, NY, OH, and GA to name a few but has also been used around the world.

What is the difference between reinforcing with FORTA-FI fibers and woven mats?

FORTA-FI® fiber mixes three-dimensionally within the asphalt pavement. Woven mats are located underneath the base of the asphalt pavement. Because cracks can happen anywhere within the asphalt, FORTA-FI® fiberreinforcement aids in strengthening the asphalt and reducing cracking wherever it may occur. Another advantage of FORTA-FI® is it’s much easier to use.
No additional construction steps equals labor savings!

Can asphalt reinforced with FORTA-FI be recycled?


Can using FORTA-FI® be considered “green” and environmentally friendly?

Yes, less FORTAfied® asphalt is required per job reducing the thickness and/ or better performance and longer pavement life reducing lifecycle costs, and it can be recycled—RAP.

Will FORTA Corporation provide technical assistance if needed?

FORTA Corporation will provide as much information as needed on our materials. Our expertise lies in developing and producing reinforcing fibers for designed asphalt mixtures or projects.

Calculate Your Savings!
Select Unit:US TonMetric Ton
Enter Asphalt:

Enter Asphalt Price:
FORTAfied asphalt for Tons of Savings!

Use our Savings Calculator to compare material costs between a traditional asphalt mixture and FORTAfied Asphalt.

Original Asphalt Cost:

Reduction in Asphalt Thickness:

Reduced Asphalt Cost:
Cost of FORTA-FI (based on MSRP):

FORTAfied Asphalt Cost =

Material Cost Savings =
Savings in Tons =