AASHTO PP 91-18 (2020) Download


Standard Practice for Emulsified Asphalt Scrub Seal Design
standard by American Association of State and Highway Transportation Officials, 2018



AASHTO PP 91-18 (2020) 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 Details

Number of Pages:
File Size:
1 file , 5.5 MB
Product Code(s):
PP091-18-UL, PP091-18-UL, PP091-18-UL