AASHTO - R 112
Standard Practice for Asphalt Tack Coat Design
active, Most Current
| Organization: | AASHTO |
| Publication Date: | 1 January 2022 |
| Status: | active |
| Page Count: | 5 |
scope:
This standard determines an application rate for emulsified asphalt or performance-graded (PG) asphalt binder for tack coats.
A tack coat is the application of an emulsified asphalt or performance-graded (PG) asphalt binder, to an existing pavement surface just prior to placement of a pavement overlay course. The tack coat is used to ensure a good bond between an existing asphalt or concrete pavement and a pavement overlay course, between multiple pavement lifts of a structural pavement, and at any vertical surfaces to which a new pavement layer will be placed adjacent, such as curbs, gutters, utilities, and construction joints.
Document History
R 112
January 1, 2022
Standard Practice for Asphalt Tack Coat Design
This standard determines an application rate for emulsified asphalt or performance-graded (PG) asphalt binder for tack coats.
A tack coat is the application of an emulsified asphalt or...