A concrete slab is the most basic part of any building's foundation. These concrete slabs are made from steel reinforced concrete and are usually 12-16 centimeters thick. These specific concrete slabs are usually made for floors and ceilings. There are thinner slabs and these are used for making exterior pavements.
How does one go about building a concrete slab? The first thing you have to do is find out the size and the distance of the concrete slab. Use any marker or even school chalk to make a visible line from start to ending point. If you are making a visible line on grass, you could use a thicker amount of ground chalk or clear out the line of grass so that the ground is flat. Always try to get the line straight so that no materials can be lost in the process.
After you find the distance, the next step is to build a mold that will hold the concrete mix. To make a mold, you can use straight and smooth boards to define the shape. You can also use screws to join and take apart the boards if you need to use them on another mold elsewhere.
Before placing the mold, you may have to dig a slight ditch two inches deep so that the mold would stand straight. When the mold has been properly placed, you should make a square frame on the corners of the area- above the corner and under it. This ensures that the corners are reinforced.
Prior to filling the mold with concrete, you have to fill the lower portion of the mold with gravel, then with rocks before the concrete is poured. This ensures the slab is strong. This also means you will save on concrete mix since the majority of the slab is composed of any rock or gravel found around the area.
You should always remember to follow the mixing instructions to the letter as stated on the package. Any deviation of the mix may make the concrete weak and may crack easily. You should continue to pour the mix over the gravel and rocks evenly and make sure every crack is filled.
When the concrete has been evenly filled over the gravel and rocks, you should let the concrete set. If you wish you can decorate the concrete with colored rocks or other rocks of your fancy. Always allow extra time for the concrete to fully harden before attempting to put pressure on it.
Once the concrete has hardened, you can then remove the mold by loosening the screws and the boards. If there are any depressions along the mold, you can pack it with soil until it is filled.
Other options you can do after the concrete has hardened is to put grass along side or use decorative borders or fences.
In a nutshell this is the process on how to build a concrete slab.
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