It's a very large piece of machinery that is, the one I saw, gas powered and driven over the rebar. The concrete trucks back up to it and dump their concrete into a giant hopper. As the screech is driven forward, it pushes the concrete truck until it's empty.As it moves, it will screech the concrete and the finishers will come behind it with their bull floats and finish trowels. This was for a new run
That makes sense. Never heard of a screech unless it was an owl or hysterical person.OOOOPS. screed. My bad. To many letters on my key board and to close together.