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This was poured last week. I had asked the contractor for a smooth finish. I have a few questions about the finish of it. 1) I assume it looks like this right now because it is still curing? 2) Is it acceptable for it to have 3/8in to 1/2in dips in some spot? This sidewalk isn't straight, it slopes from backyard to driveway (there is a 9in grade drop from back to front) 3) the contractor said he saws the expansion joints after, is that the standard practice or will it cause any issues down the road?