AASHTO PP 91-21 PDF Download
Standard EN
Standard Practice for Emulsified Asphalt Scrub Seal Design
Also Known As:
SKU184168957
Published by
American Association of State Highway and Transportation Officials
AASHTO
Publication Date2021
Pages CountPages8
AASHTO PP 91-21 standard provides guidelines for determining the quantities of aggregate and emulsified asphalt to be used in scrub seals. A scrub seal refers to a four-step process involving the application of emulsified asphalt, followed by the use of a scrub broom to push the emulsion into pavement cracks. This is then followed by the application of a single layer of cover aggregate, which is then rolled using a pneumatic tire compactor. Additionally, the standard allows for the inclusion of a fog seal to enhance chip retention if desired.
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| Language(s) | English |
| File Size | 5.5 MB |
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