CD Designs Blog
While Complete Driveway Design’s driveway installations are completed as quickly and efficiently as possible, it’s still a complex process, especially if you take as much care as we do, and it involves a number of stages. We thought we’d give you an idea of what takes place as part of an average installation.
First, the area in which the driveway will be placed is excavated to a depth that will allow the concrete and the subgrade it is laid on top of to come up to the desired level, ensuring that the height of the surface is regular. All the excavated spoil is removed, and the boundaries of the concrete area and any other necessary boundaries are prepared. After that the excavation is filled with subgrade filling material; this could consist of sand or gravel.
The depth of subgrade underneath the concrete varies according to the expected traffic on the surface; driveways, for example, require less subgrade than roads. The subgrade ensures that the concrete has a regular base to set upon, as well as reducing the amount of ground-water that the concrete comes into contact with as it sets. At this stage any drainage channels or other necessary additions to the concreted area will be put in place.
After the area is prepared, the concrete is poured into place, and is shaped up to the boundaries. Before it sets, colour hardening and release/antiquing agents are applied if the concrete has been dyed, and then the desired pattern is imprinted into the surface of the concrete using large modular mats.
Once the concrete is set, any residue from the agents which have been applied to the surface as part of the colour releasing process are cleaned away. Then crack control joints are cut into the concrete. All concrete surfaces will eventually crack, but by placing control joints it is possible to help avoid unsightly cracks, or ones which might compromise the integrity of the driveway.
After this stage the surface of the concrete is cleaned; this is also an opportunity to tidy up the site around the installation area. The final step is to apply protective sealant to the concrete. Now your driveway will be finished, and should look even better than you’d imagined it would.
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19th January 2010