Today, many asphalt paving contractors choose FORTA-FI® for fiber reinforced asphalt installation: “FORTA-FI® is a high tensile strength synthetic fiber blend formulated to reinforce asphalt mixes in both new construction or rehab projects. These fibers are manufactured polymer-based materials such as polypropylene, nylon, or polyethylene. In the 1970s, due to health and environmental concerns associated with the use of asbestos fibers, researchers start to practice other types of fiber in asphalt concrete which are synthetic fibers such as polyester, polypropylene, and mineral fibers like slag wool and rock wool [30]. The mix of aramid and polyolefin fibers is designed to enhance your current mix design. Then the 1980s brought about the use of synthetic fibers, a switch made due to high tensile strengths and durability of these new fibers. Various types of additives have been used in asphalt pavement industry to improve the performance. FORTA offers synthetic fiber additive solutions to be used in Hot Mix Asphalt, Warm Mix Asphalt, and Hot/Cold Patch. WHAT are Synthetic Fibers? Local and state entities pay a premium price for polymer-modified asphalt cement (AC) designed to enhance performance with regards to rutting and crack resistance. These chemically-inert synthetic fibers mix quickly and distribute uniformly in all asphalt mixtures offering proven and measurable improvements to stability-related problems occurring in traditional asphalt pavements. Microfibers are typically found in the concrete used for driveways, sidewalks, curbs, garage and basement floors and other locations where you need a durable surface with minimal plastic shrinkage cracking. The polymer-modified AC is used in high-traffic areas that experience heavy traffic loads. Research that evaluates the effective use of aramid synthetic fibers in asphalt mixes on local roadways is needed. For more information on our superior concrete fibers or to request fiber samples Please Contact Us 100 Forta Drive Grove City, PA 16127-6399 USA Phone: 724-458-5221 Toll Free: 800-245-0306 Fax: 724-458-8331 Email: [email protected] Common Benefits of Fiber Reinforced Asphalt. Synthetic fibers are added to concrete before or during the mixing operation. Para-aramid is a unique polymer fiber with 400,000 psi tensile strength and micro-roots that tenaciously anchor themselves in the bitumen of the asphalt. FORTA has become the leader in the research and development of synthetic fibers used in the construction industry. Analysis of Aramid Synthetic Fibers in Asphalt Mixes on Local Roads . Synthetic fibers engineered for use in concrete can withstand the long-term alkaline environment of concrete. They’re typically made of nylon, polypropylene, polyethylene, polyester or acrylic, although other synthetic fibers are usable. 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