How to play Aces on a low board

Hi there,

yesterday i had a interesting hand.

Hero AsAc (Button)
As* XxXx (SB)

I raise to 0.45
SB calls

Flop: 5c 2s 9h

SB: bets 0.80
Hero: raise to 2.10
SB: calls 1.30

Turn: Jd

SB: ALL IN with 8.25
Hero: folds


how would you play? this guy was just 2 Hands on the table and i had no infos.