"Joseph Meehan" wrote in message
Concrete is very heavy and it is time sensitive. The driver will expect
to be able to deliver and be out of there quickly. Except for a very
small project that takes a lot of people to do the work and the less
experience they have the more it takes.

I hope all this has convinced you that you need someone on site who
really knows what they are doing when that truck arrives.

The truck will dump and you will have to spread and screed immediately.
Once he is gone, you won't be able to fill in any low spots. Actual
finishing can then take place. Also good to have a spot to dump any excess.

Sealer? Never. Billions of square feet of unsealed concrete abound in the
world for over a hundred years with no sealers on them.