AASHTO R 112-22

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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.

This standard was formerly designated as provisional practice PP 93.

Product Details

Published:

2022

Number of Pages:

5

File Size:

1 file , 300 KB

Note:

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