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]. Common Benefits of Fiber Reinforced Asphalt. In 1980s, more researches has been done on the use of synthetic fibers in HMA 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]. WHAT are Synthetic Fibers? Various types of additives have been used in asphalt pavement industry to improve the performance. FORTA has developed successful asphalt reinforcement solutions for needed applications all over the world. These fibers are manufactured polymer-based materials such as polypropylene, nylon, or polyethylene. Synthetic fibers are added to concrete before or during the mixing operation. 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. They’re typically made of nylon, polypropylene, polyethylene, polyester or acrylic, although other synthetic fibers are usable. Then the 1980s brought about the use of synthetic fibers, a switch made due to high tensile strengths and durability of these new fibers. FORTA has become the leader in the research and development of synthetic fibers used in the construction industry. FORTA offers synthetic fiber additive solutions to be used in Hot Mix Asphalt, Warm Mix Asphalt, and Hot/Cold Patch. 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. Many fibers have been successfully used to reinforce asphalt, but it takes a special polymer fiber to successfully reinforce 350 degree asphalt. The polymer-modified AC is used in high-traffic areas that experience heavy traffic loads. The primary goal of this research is to compare the performance of polymer-modified asphalt mixes to non-polymer-modified aramid fiber-reinforced asphalt mixes for resurfacing applications to control rutting and cracking. 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. Among these additives, fibers have received increas… 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. The mix of aramid and polyolefin fibers is designed to enhance your current mix design. 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2020 synthetic fibers for asphalt