Animated overview of Duval Asphalt's people, services, philanthropical efforts, and commendations. Duval Asphalt has more than 50 years experience producing and paving asphalt in the greater Jacksonville area. With three hot mix asphalt plants and nearly 200 employees, Duval Asphalt works continually for the benefit of its employees as well as present and prospective customers to improve the competitive position of the company.