• AASHTO PP 91-21

AASHTO PP 91-21

Standard Practice for Emulsified Asphalt Scrub Seal Design

American Association of State Highway and Transportation Officials , 2021

Publisher: AASHTO

File Format: PDF

$39.00$78.00


This standard practice determines application quantities for applying aggregate and emulsified asphalt for scrub seals.

A scrub seal is a four-step process in which the application of emulsified asphalt is followed immediately by a scrub broom to push the emulsion into the cracks in the pavement, followed with an application of a single layer of cover aggregate, and then rolled with a pneumatic tire compactor. There is the option of including a fog seal to help with chip retention.

AASHTO PP 91-21 History

AASHTO PP 91-21

AASHTO PP 91-21

$39.00 $78.00

AASHTO PP 91-18 (2020)

AASHTO PP 91-18 (2020)

$39.00 $78.00

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