Concrete is typically meant to be a solid surface. People do not think about putting holes in concrete because most of the concrete they see every day does not have holes. It is a flat, poured surface on either a horizontal or vertical plane, or it is poured to create a cylinder. So, why on earth would any concrete contractor offer concrete drilling as a service? Actually, there may be a lot more holes in concrete around you every day than you realize. The following three purposes are just some of the reasons for drilling holes in concrete.
1. To Level Concrete
Sometimes concrete sinks and settles unevenly, creating cracks. Concrete contractors then drill holes in the concrete that has broken and fallen away. They stick long pneumatic tubes through these holes and "inject" the ground below the uneven concrete with fresh, wet concrete. The result is that the uneven piece of concrete is suddenly lifted to meet the rest of the concrete and become one even, uniform slab again.
2. To Attach Signage
Another purpose for drilling holes in concrete is so that signage may be affixed to a concrete column or concrete wall. There is no other way you could easily drive bolts through concrete to attach signs without pre-drilling the signs first. The bolts would be utterly destroyed by the thickness of the concrete, and there is a good chance that the metal signs would be warped and ruined in the process as well. By drilling the holes first, the sign is saved and posted where it is needed, and the bolts that secure it to the concrete surface will easily slip into the pre-drilled holes and screw into place.
3. To Add Reinforcements
One other purpose for drilling holes in concrete is to reinforce it. Usually, this is done during the construction process, and not after the concrete has already been standing or laying flat for a long time. Holes are drilled through which rebar or some other type of steel reinforcing material is inserted. The metal is secured in place, and more concrete fills in the space around the metal. Now, something can try to hit or shake the building violently, and because of the metal inside the concrete, the building will only twitch, rather than break and crumble. This type of hole drilling for concrete is common in states where earthquakes and tornadoes occur several times a month/year.
For more information, contact a company like A & B Concrete Coring Company.