• AASHTO R 78-22

AASHTO R 78-22

Standard Practice for Recovering Residue from Emulsified Asphalt Using Low-Temperature Evaporative Techniques

American Association of State Highway and Transportation Officials , 2022

Publisher: AASHTO

File Format: PDF

$38.00$77.00


This practice covers two methods for recovering the residue from emulsified asphalts such as those specified in AASHTO M 140 and M 208, using low-temperature evaporative techniques that are similar to pavement conditions. The recovered residue can be used for further testing as required.

This standard was formerly designated as provisional standard PP 72.

AASHTO R 78-22 History

AASHTO R 78-22

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AASHTO R 78-16 (2020)

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AASHTO PP 72-11 (2013)

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