In order to improve the bond between layers of pavement, a tack coat should be applied. A tack coat is very inexpensive insurance to improve the structural integrity of the pavement layer. There are many different types of tack coats and emulsions.
Product Data Sheet – Colasphalt Tack
Cationic Quick-Setting Emulsion For Tack And Fog Coats
New Brunswick Field Study on Optimization of Tack Coat Rate to Enhance Interface Bonding of Asphalt Layers
2019-TAC-New Brunswick Field Study on Optimization of Tack Coat Rate to Enhance Interface Bonding of Asphalt Layers