The contractor has suggested using a self leveling concrete pour to even everything out. This would fill in with depths ranging from about an inch near the center to essentially zero depth near the outer areas where the new concrete pour meets the original patio.
How well will the self leveling concrete adhere to the surface near the outer parts of the region where the fill depth would be essentially zero?
Should the outer regions be ground down to a minimum depth first?
Unfortunately ripping out the original pour is undesirable beacuase it was reinforced with rebar.
Thanks for any insight and advice.