ACE Fiber is a high performance fiber reinforced asphalt cement that can delay crack repair in asphalt by 140% longer. The aramid fibers have a tensile strength 5 times that of steel and when added to asphalt mixes, provide 3D reinforcement with 18 million fiber strands per ton of asphalt. Laboratory testing has shown this reinforcement improves asphalt strength and allows the pavement to last 50% longer.