What is it? Asphalt is a mixture of about 95% aggregate (stone, gravel, sand) and 5% asphalt cement (liquid binder derived from crude oil refining.)
How is it made?
Rock, sand and asphalt binder are mixed together at an asphalt plant according to a specified mix design (kind of like a recipe for cooking)
The Romans used asphalt to seal baths, reservoirs and aqueducts. Moses's basket and Noah's Ark were thought to have been waterproofed by and asphalt material.
· Transportation- highways, airport runways, transit system rail beds
· Recreational- running tracks, playgrounds, racetracks, tennis courts
· Residential- driveways, subdivision roads
· Agricultural- cattle feed lots, poultry house floors, barn floors
Asphalt is the most recycled material in America. More than 73 million tons of asphalt pavement material is recycled each year. Recycling asphalt roads saves American taxpayers an estimated $300 million each year!
Use the following link to tour an asphalt plant www.beyondroads.com