Any Issues with a Slurry Seal (Type 2) over Asphalt Rubber Hot-Mix (ARHM)

[raydefan]

We proposed this on one of my plans and the City I'm working for is concerned that the slurry seal won't bond to the ARHM like it would on a typical ACP. I've never heard of this concern and was wondering if anyone on this forum has any opinion on this.

Thanks!

 

[Ron]

You have not provided any information as to the type of slurry seal and the emulsion to be used. I would be concerned about compatibility and stripping as well. It would be prudent to run a few tests to determine compatibility and stripping potential. It probably won't be an issue if the ARHM has sufficiently weathered, but should be checked anyway.

 

[cvg]

contact ADOT Phoenix district, they have plenty of experience with this
sorry, I do not have a specific contact name

https://www.azdot.gov/business/district-contacts/central