Bar walls with a counter on top

build bar walls out of glass block and pour a 2" x 16" x 10' counter top and tile over the concrete top

construct bar out door bar walls app 42" x 10' and then pour a 2" x 16" x 10' counter top and tile over the concrete

After setting glass block, let cure for a couple days before putting counter top on.

Would also build a support wall in middle of bar.

Use a screening in concrete to give it added strength.

Install tile with thin set.

Good luck

Chuck