An important purpose of prime coats is to ___.
A. promote the bond between the subbase course and the subgrade
B. promote the bond between the base and the wearing courses
C. increases the stability of the subgrade
D. promote the adhesion between an existing wearing surface and a subsequent wearing surface
Answer:D
An important purpose of prime coats is to ___.
A. promote the bond between the subbase course and the subgrade B. promote the bond between the base and the wearing courses C. increases the stability of the subgrade D. promote the adhesion between an existing wearing surface and a subsequent wearing surface
Explanation: The main objective of priming is to plug in the capillary voids of the loose mineral particles on the existing surface using a binder of low viscosity.