What is the proper procedure for placing concrete?
Place the concrete in the forms to the full depth, spading along the sides to ensure complete filling. Strike off the concrete with a length of 2 X 4 in a saw-like motion. Go over the concrete twice in this manner to take out the bumps. Low spots should be filled before the second pass to provide a uniform surface. Immediately after striking off, work a mag float back and forth across the slab to smooth it and remove irregularities. Work a slight amount of cement paste to the surface. Don’t overwork concrete; overworking will result in a less durable surface.