DIY

Solera of concrete

It is essential to make a concrete screed on the ground before making or designing any type of floor covering. However, its elaboration requires a certain level of knowledge in construction, since otherwise it can be a great waste of time and materials.

To know how to make a concrete floor, you must first define exactly what it is. In this sense, it is a surface made with a type of concrete for flooring that separates the ground from the foundations of a house. Likewise, it allows leveling the floor before laying ceramics or any type of coating.

Also, it is possible to use a floor to make a small path at the entrance of the house or even to balance the floor of the rooms if they have different levels. Due to its wide utility, it is an essential surface for any type of construction. In this sense, we have elaborated a step by step with everything you need to know to make a concrete floor.

How to make a concrete slab?

Before starting with the realization of a floor, it is necessary to have different materials and a certain level of knowledge in masonry and construction . In this case, it is very important to remember that it is not advisable to do this type of work if you do not have previous experience or do not have a professional in this area, since concrete screed regulations must be followed to carry it out.

1. Organize the area

It is necessary to clean and remove debris from the floor before making a screed. Also, you must leave enough space around to place the tools and materials, since this work requires several round trips, so it is advisable to have all the utensils as close as possible.

2. Carry out the measurements

You have to accurately measure the length and height that it will have. To help you, you can use a tape measure, as well as a bubble gauge that allows you to draw the levels for the concrete slab. This way, you can tell how flat the terrain is. Also, you must make a construction detail of the screed to have a clearer idea of ​​the thickness of the surface.

3. Define the terrain

When pouring concrete in a room, it is not necessary to delimit the area, since the space itself often serves as a limiting structure for the mortar . However, if you want to apply it outdoors, then you should make a formwork concrete slab. First of all, a perimeter must be fixed with string and stakes to establish the area and minimum thickness of the concrete slab. Then, with wooden planks and nails, you can make a formwork that can withstand the pressure of the concrete once you add the mixture to the floor.

4. Calculate the volume of the floor

The calculation of reinforced concrete screeds is one of the most important steps, since this way you can be sure to buy enough material. In this sense, to obtain the proportion of concrete for the screed, you must first multiply the width of the space by the length and thickness that you want.

All these data must be represented in meters at the time of multiplication. In this way, we can obtain the volume in cubic meters (m³), which will later be used to calculate the concrete for the screed. Now, for every 1 m³ of screed, you have to have 1 m³ of sand and 300 kg of cement. In addition, for every 35 kg of cement you must add between 10 and 15 liters of water to make the mortar.

5. Install the insulation or metal mesh

You can pour the concrete directly on the ground or place a layer of separation between the floor and the screed to prevent the increase in humidity and limit the risk of cracks. The insulation layer is usually made of plastic building film. Once placed, you must incorporate the metal mesh that can come in rolls or sheets. Either way, it is advisable to tie the metal pieces together for added strength.

Also, it is possible to make a concrete slab without mesh, but in this case it might not be too resistant, since the function of the mesh is to allow the concrete to adhere better.

6. Pour the concrete

After placing the mesh, you must prepare the mortar in a concrete mixer or on a surface relatively far from the screed. Once the concrete mix is ​​made, then you must pour it. In this step, it is recommended to start in a corner of the space and systematically work across the width of the screed. Depending on the dimensions, it is adequate to have the help of 2 or more people to add the concrete quickly. On the other hand, it is important to use the reference points previously marked with the strings. In this way, you avoid exceeding the height.

7. Level the floor

For this step, you must have an aluminum ruler and a level that allows you to know that the sill is straight. With the ruler, you must make rotating movements to remove the excess concrete . You can then use the level to make sure every foot of the screed is completely straight. If it isn’t, then you should add or remove concrete from the surface to help balance it out.

8. Let dry

The setting time of concrete is approximately 5 days. After this period, it is possible to walk on the floor and, after 7 days, we can already place heavy objects on it. In case of not waiting, some detail can be presented in the floor that with the passage of time generates cracks and major faults.

On the other hand, if there is a hot climate in the floor space, then the surface must be sprayed with a little water every day to prevent cracking during drying. Also, if it is very cold or it is a rainy area, you have to cover the floor with plastic.

Finally, it should be mentioned that, once the concrete floor dries, it offers a stable, resistant and waterproof surface, which serves as a base to carry out any other type of construction project, but it is necessary to follow these steps to be successful. in this project.

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