Concrete is a long--lasting material, but roads, buildings and other concrete structures can exhaust their usefulness. When these structures are demolished, the debris can get a new life through ...

In North America, new buildings continue to go up, highways are widening and leading to newly developed areas, and bridges and roads in an already impressive infrastructure are now being replaced.

Crushing and recycling concrete that contains lead-based paint may pose few real hazards. A recent study by the U.S. Army Corps of Engineers suggests that the lead content in construction and ...