AASHTO PP 91-21

Standard Practice for Emulsified Asphalt Scrub Seal Design

American Association of State Highway and Transportation Officials , 2021

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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.

Product Information

Published: 2021
Pages: 8
File Size: 1 file , 5.5 MB
Language: English
Note: This product is unavailable in Ukraine, Russia, Belarus
AASHTO PP 91-21
AASHTO PP 91-18 (2020)

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