Pavement Technology Update
A periodic publication describing practical applications of pavement technology innovations.

This Technology Transfer Program publication is funded by the Division of Research and Innovation at the California Department of Transportation. Content is provided by the University of California Pavement Research Center.

Recent Findings on the Use of Tack Coat Between Pavement Layers
Volume 1, Number 1
By Larry Santucci, PE

A tack coat is a light application of asphalt or asphalt emulsion used to bond one pavement layer to another. The tack coat acts as an adhesive or glue so that the combined pavement layers perform as a composite section rather than as individual sections... [PDF]

Rubber Roads: Waste Tires Find a Home
Volume 1, Number 2
By Larry Santucci, PE

Most of us have heard the phrase “Where the rubber meets the road.” In recent years, increasing amounts of crumb rubber from recycled tires have been added into the road in the form of thin rubber modified hot mix asphalt (HMA) surface courses or rubber modified spray applications used as pavement interlayers or surface treatments... [PDF]