Longer Life

ACE FIBER™  is a true achievement in asphalt additive technology to enhance performance.

To create ACE, Surface Tech blended aramid fibers and Sasobit wax to address the 2 major distresses affecting asphalt performance today; cracking and rutting. Doing so also dramatically improved the treated roads’ life expectancy. When ACE Fiber is mixed into asphalt, it disperses over 19 million Aramid fibers throughout each ton of mix to provide 3-dimensional reinforcement that increases the asphalt’s resistance to reflective cracking, rutting, fatigue and increased life expectancy. And best of all, no specialty contractors are needed for installation. Contractors handle ACE Fiber reinforced asphalt the same way they handle standard asphalt. This underscores ACE’s technology in being easy to adopt.

See for yourself. Watch the video below.

How it Works

How does ACE FIBER™ make asphalt more durable?

Many fibers have been successfully used to reinforce asphalt, but it takes a special fiber to successfully reinforce 350 degree asphalt. Aramid is a unique fiber with 400,000 psi tensile strength and micro-roots that tenaciously anchor themselves in the bitumen of the asphalt. In the summertime when asphalt gets hot and wants to rut, the rooted aramid provides resistance to the “flow” of asphalt to mitigate rutting. In the wintertime when asphalt is cold and wants to shrink, aramid provides added tensile strength for resistance to cracking. The bottom line is that fibers in asphalt now make sense because of aramid, and for relatively low cost, ACE Fiber makes a big performance improvement in asphalt.

Technology Behind Ace Fiber

ACE Fiber, is pure aramid with a wax treatment. By treating the aramid with wax, the aramid is weighted down and controlled for proper delivery into the asphalt mix. When ACE Fiber enters the asphalt mixing chamber, the wax melts to release the fibers in the right place at the right time. This unique delivery process results in the highest performing blend of Fiber Reinforced Asphalt Concrete (FRAC) in the market. Any asphalt project can benefit from ACE Fiber including both newly constructed asphalt pavements as well as thin asphalt overlay projects over deteriorated asphalt or concrete pavements.

50% Increase in rut resistance
150% Increase in strength
140% Increase crack resistance
290% Increase in fatigue life
150% Increase in thermal crack resistance
Individual coated Aramid clips provide superior control of the Aramid into the mix
Provides superior/thorough disbursement of Aramid into the mix
Completely dissipates in the mix at a flash temp of 230℉; no effect on Aramid once melted

Material Properties

Aramid Fiber Reinforcement. Provide ACE Fiber (pre-treated, Sasobit wax coated, aramid fiber) conforming to the requirements adjacent. Design asphalt mix without fiber and do not alter the final mix design for the addition of fiber at the plant. Use the dosage rate of 4.2 oz. coated weight per ton of asphalt mix (of which 2.1 oz. is pure aramid). The fiber addition tolerance allowed shall be no less than 4.2 oz. coated weight (2.1 oz. pure aramid) and not more than 4.62 oz. coated weight (2.31 oz. pure aramid) per ton of asphalt mix. Please note that ACE Fiber contains 50% actual aramid fiber and 50% actual Sasobit wax, by weight. This pretreated, Sasobit wax coated fiber remains in the form of a fiber strand with over 10,000 individual fibers / strand that is efficiently conveyed to the asphalt mixing drum. In the mixing drum, the Sasobit wax completely melts allowing the dry fibers to disperse into the HMA or WMA asphalt mix.

Use Less, Save More

Up to a 33% reduction in thickness of asphalt (at $60 per ton/asphalt, you are saving $20).  Design your project to cover the cost of ACE!
This savings still compares/equates to control life of road; covering ACE, saving additional dollars AND improving life expectancy as a major Value Proposition.
See your area representative for more exacting details.

Engineered for Performance


ACE Fibers are high performance engineered fibers for asphalt that increase service life, save costs, or a combination of both. Similar to certain fibers successfully used in concrete for decades, ACE Fibers are now used in asphalt to significantly increase performance of new asphalt pavements and overlays. ACE Fibers are 5 times stronger than steel and add strength to asphalt pavement in all directions.

Frequently Asked Questions