I just poured concrete for an outside patio that is roughly 21' long x 5' wide. It has the appropriate slope for drainage. Once it's fully cured I plan to lay 24" x 16" travertine stone tiles over it. The stone pieces are roughly 1 1/2" thick. Unfortunately I'm a concrete rookie and the surface is not smooth. Is there a simply way for me to smooth the surface enough for the tile while maintaining the drainage slope?
Isn't it a little late to be asking that question?? Get a 2x4 and run it along the framing for the concrete, smoothing it out.
Even if the concrete isn't totally smooth, when you install the tile you can smooth the rough surface of the concrete with the mortar... If the slab you poured has the proper slope make sure each tile is flush with the slab and you'll get the slope you desire. Good luck