How thick should slab foundation be?

How thick should slab foundation be?

What is the thickness of a concrete slab?

EXCAVATION FOR FOUNDATIONS Foundations are the structures that receive all the weight of a building, so they must rest on solid firm ground that will not settle or compress under the weight of the building. Remember that a foundation is only as strong and solid as the earth beneath it. SOILS In general, the surface layers of soil, called topsoil,

are not very firm and therefore, inadequate to support the foundation. But the deeper layers of soil, more stable and resistant, are suitable to support the foundation of the construction. To find these layers of firm soil, the excavation for the foundation is made.

To find out the depth to which the foundation should be dug, a test pit or trench is dug. If the shovel sinks easily when digging, the soil is soft and spongy and not suitable for a foundation. It is necessary to dig deeper.

When the excavation is deep or the soil is very loose, the walls of the ditch can collapse in part. In order to avoid this, the walls are placed with shoring, which are like falsework made of boards and poles, which hold back the earth from the walls. Once all the excavation has been completed, the bottom of the stock is leveled by striking it with a hand tamper.

Thickness of a slab in cm

In other words, we generally consider a slab to be an element whose structural function may be reinforced with reinforcing steel or metal staples; and we will consider a concrete floor to be a construction element whose function is not structural.

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One of the many advantageous qualities and characteristics of concrete floors is their good behavior in extreme climatic circumstances. In addition to its fantastic strength and durability. Now we introduce you to some types of concrete:

Polished concrete is the ideal for this type of floor, as it is durable, resistant, waterproof, refracts light (which saves energy and greater luminosity in delicate tasks); its surface will not accumulate dirt, so it needs little maintenance. In addition, heavy loads can be easily relocated on this type of flooring.

Thickness of lightened slab

Good morning Alan, the foundation is an important part of a building and as such you should pay all your attention to it. To know the type of foundation that is best for you, you need to know the resistance of the soil, the weight that it will receive (live and dead loads).

Look, the thickness of the rebar is directly related to the concrete to be used and the dimension of the foundation, as well as the resistance of the soil, so I can’t give you an answer, whoever tells you otherwise, is surely lying to you, I hope you let me help you.

I recommend you if you want to do your construction well, do not pay attention to the specifications that are recommended here, have your soil mechanics study done and after that the structural calculation and then you will have the correct specifications for your construction according to your project and your land.

self-construction is something you should avoid, consult an expert for it, it is irresponsible to give measurements, gauges or provide a guide because each project is different, as well as the terrain and materials, here you will find several responsible professionals and with warranty.

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How to calculate the thickness of a slab

A footing is a type of shallow foundation, which can be used in reasonably homogeneous soils of medium to high compressive strength. They consist of a wide concrete prism placed under the columns of the structure. Its function is to transmit to the ground the stresses to which the rest of the structure is subjected and to anchor it.

There are several types of footings depending on whether they will support one or more columns or walls. Isolated footings are used for single columns, combined footings for two nearby columns, and spread footings for rows of columns or walls.

The correct dimensioning of the spread footings requires the verification of the bearing capacity of subsidence, the verification of the state of equilibrium (sliding, overturning), as well as the verification of its resistance and its differential settlement in relation to the contiguous footings.

For the construction of an isolated footing, the foundations and structures of buildings located on land of heterogeneous nature, or with discontinuities, must be made independent, so that the different parts of the building have stable foundations. Constructively, it is convenient that the building installations are on the plane of the foundations, without intersecting footings or braces.

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