Raise the flop to $40. I find showing aggression on the flop on these kinds of boards rather than on the turn makes your opponent more likely to put you on mid pair or A10 rather than a huge hand (your set). You turn bet is way to small, bet $30.
As played, I think you have to push this. If you think he can do this on a straight bluff, wait till the river when he auto-sticks it in.