Asphalt Reinforcement

Asphalt Reinforcement

Municipalities are faced with the challenge of building and maintaining roadways with budgets that are stretched thin by competing priorities. The repair of asphalt rutting, asphalt cracking, and roadway subgrade failures can result in costly, unplanned expenses, that have to be fit into this already tight budget. Fiber reinforcement of asphalt surfaces, has proven to be cost-effective for roadway construction, re-construction and maintenance. This is because the fibers strengthen the roads reducing the necessary maintenance costs and reduce the amount of asphalt necessary.

Aramid fibers (commonly used in bullet-proof vests, tire cords and heat protection) have been shown to reinforce asphalt; reducing rutting and cracking and increasing the asphalt dynamic modulus (stiffness). Unlike conventional pavement reinforcing grids, aramid fibers are mixed throughout the asphalt layer, creating 3-dimensional asphalt reinforcement. Aramid fiber reinforcement can allow the use of thinner asphalt layers, resulting in cost savings of $1 to $10 per square yard or an extended service life greater than 50%.


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