Increased amounts of recycled materials are being used to supplement natural aggregates (derived from crushed stone, sand and gravel) in road construction. An understanding of the economics and factors affecting the level of aggregates recycling is useful in estimating the potential for recycling and in assessing the total supply picture of aggregates. This investigation includes a descriptive analysis of the supply sources, technology, costs, incentives, deterrents, and market relationships associated with the production of aggregates.
Additional publication details
USGS Numbered Series
Aggregates from natural and recycled sources; economic assessments for construction applications; a materials flow study
U.S. Dept. of the Interior, U.S. Geological Survey,