Okay well the desk was done yesterday, I wasn't expecting them to pour the concrete and do the kool deck all at the same time so I was pleasently surprised when I came home to see it finished. I was talking with a neighbor of mine who said he also didn't have any rebar in his slab. After talking with the builder they said they now put kevlar strands in the concrete mix which holds it together. This is unconfirmed if that is true or not and not sure if they used that on my deck.