Wesley Caine has been grading and finishing concrete for 25 years in the Atlanta metro area. Primarily he works the southside with an emphasis on quality and keeping prices reasonable without cutting corners to save money.
The day before... grading
This job was a driveway extension in Jackson, GA. The area has been graded and is ready to be formed up. A uniloader/bobcat was used to level the area and dig out a small portion around the existing concrete. This driveway extension is on a downward slope to the existing concrete.
In warmer months, plastic is used to slow drying time. Concrete is meant to dry from the top, and is stronger this way. When it dries too fast and water is lost into the soil, it is more brittle. Stronger concrete is longer lasting concrete.
Iron pins have been put in place with a stringline to assure even measurements, and wood forms have been put in place. This concrete will be 4'' thick.
Important considerations are utility locations and septic location as well as landscape, which affect truck access. Sometimes a wheelbarrel or bobcat must be used to move the concrete depending on these factors. For this job, the truck was able to back in. Another factor is selecting the proper concrete strength for the purpose it will be used for. In this case we used 3000 psi mix. Some jobs require additional strengthening materials such as rebar or wire mesh. Permits are required on some projects.
Concrete is worked using a bullfloat.
Edges have to be worked with the mag float and edger for a nice look.
Control joints are placed at intervals to help prevent cracking. It also has a nice look. This must be done at just the right time, and concrete must be smooth.
Brooming is added to give texture to the concrete and must be done after it has set up to the proper dryness, but before it is too hard. This is the last step, and here we have a finished driveway extension. Although it is set up, it will not be ready to be driven on for 48 hours.