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Quick question: The contractor now says he will overlay a top layer of strong bond concrete to make the concrete stronger. Is there such a thing?

I have the Schmidt Hammer test results: The compression strength of the patio ranged from just 1500 PSI to 2200 PSI. COmpare this to my existing patio right next to it, which scored 4000 to 4500 PSI. As expected, the contractor is balking at the idea of redoing the work. His excuse is that...

Thanks for all the feedback! I called the ready-mix concrete company my contractor had used, and inquired about what exactly was ordered by my contractor. It turns out that he ordered the concrete with a slump of 5, which is marginal at best (4 or less is desirable). So the concrete was...

Thanks Bob. They used what looked like a string to create the control joints. The joints are about 6 feet apart, then 1 foot apart, then 6 feet and so on (Please see the picture). Also, please pardon my ignorance, but what is "de-lamination of the surface"?

I just had 1400 sq feet of concrete patio done last month, with color concrete, stamped. The contractor did the work on a very hot day, and then when I asked him if I should spray water on the concrete, he said no. We had 105+ days for a week right after that, and looks like the concrete has...

The Pictures did not show up on the original post. They are below.

Hello, (My first post here!) I had a new concrete patio done about a month ago. I noticed that the edges of the patio footing does not go all the way to the sidewalk level, and it is jagged and uneven. The edge of the footing is a foot away from the sidewalk, and 1-3 inches above the...