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AASHTO PP 90
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AASHTO PP 90 2018 Edition, January 1, 2018 Standard Practice for Sand Seal Design
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Description / Abstract:
This standard determines application quantities for applied graded cover aggregate and emulsified asphalt for sand seals on properly prepared bituminous streets. A sand seal is the application of emulsified asphalt following immediately by an application of a single layer of fine graded cover aggregate. The seal may be applied in multiple lifts depending on traffic demands and existing road surface conditions.