We purchased older home with a pebble coating on the driveway. This was done years ago and the pebble coating is half gone. We've been using a scrapper on parts of it, but this is going to take years! Is there any type of solvent that would dissolve the stuff holding the pebble coat on?

Have it paved over if you want rid of it. Anything that would remove it, would be harmful to the environment.

This is pebble coated what, concret?

This is pebble coated what, concret?

Yes it is concrete. The driveway was covered with this pebble layer and it looks like it was glued/epoxied to the concrete.

A high pressure washer should have course remove the pebbles, but not smooth the service. It does sound like merely putting a new service over it, would be advised