NAPA's publication ordering and fulfillment services are currently in transition. During the week of October 27-31, these services will be temporarily suspended as we move from one warehouse to another. Any orders placed during this time will be received, processed, and scheduled for shipment. Shipments will resume Monday, November 3. The new toll-free order number is 888-600-4474 and the new fax order line is 412-741-0609. We apologize for any inconvenience during this transition time
Performance of Open-Graded "Big Rock Mixes" in Tennessee and Indiana
Fred Fehsenfeld, Sr., of The Heritage Group wrote this classic, which was first published in 1988. It discusses the use of open-graded "Big Rock Mixes" for highways and interstates and explores the history of several such pavements that have performed especially well. Because of the lower surface area and higher void contact, these mixes require less asphalt cement than dense-graded mixes using smaller aggregates.