A Federal Highway Administration report shows that 80 percent of the asphalt pavement removed each year during widening and resurfacing projects is reused. Asphalt pavement accounts for 92 percent of the nation's highways and roadways.
RAP is used as part of new pavement, roadbeds, shoulder and embankments.
A Scientific Investigation Kit at the National Science Teachers Association annual convention in April. If anything, it argues for more ecologically realistic testing. Return to August 2000 contents .