AASHTO PP 90-18 (2020) PDF Download
Standard ENStandard Practice for Sand Seal Design
Also Known As:
SKU191479447
Published by
American Association of State Highway and Transportation Officials
AASHTO
Publication Date2018
Pages CountPages4
AASHTO PP 90-18 (2020) provides guidelines for the design of sand seals on bituminous streets. The standard specifies the quantities of graded cover aggregate and emulsified asphalt to be applied for the seal, based on the condition of the road surface and traffic demands.
A sand seal is a two-step process where emulsified asphalt is applied followed by a layer of fine graded cover aggregate. The standard emphasizes the importance of proper preparation of the road surface before applying the seal. It also allows for multiple lifts of the seal based on the specific traffic demands and condition of the road.
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Language(s) | English |
File Size | 839.7 KB |
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