On Wed, 26 Mar 2008 16:58:54 -0400, Phisherman
wrote:

Recently I had my concrete driveway raised up. This caused a 3" chip
to come off my garage concrete floor. What is the best adhesive to
use to glue this concrete chip back into place? TIA

Since you still have the chipped piece; try a masonry adhesive or an
epoxy product.

I would go with a tube masonry adhesive for this small of task.