ABSTRACT

This chapter evaluates the hazardous characteristics of cold mix asphalt pavements containing both petroleum contaminated sands and clean sands. Research sponsored by the United States Environmental Protection Agency, the Electric Power Research Institute and several state agencies has suggested that asphalt incorporation may be useful for treating petroleum contaminated soils and other wastes. Asphalt paving mixtures typically are composed of aggregate and/or sand and asphalt. The durability of the asphalt pavement mixture is usually enhanced by high asphalt content and compacted impervious mixtures. A feasibility study was conducted in the spring of 1989 to determine whether sandy soils contaminated with residual fuel oil could be stabilized with an asphalt binder and used as a paving mixture. The pavement samples were analyzed for both total and soluble heavy metals content pursuant to California hazardous waste regulations. The fuel oil contaminated soil met the required criteria as an unregulated recyclable product which could be used for other beneficial purposes.