Understand Everything About Concrete Permeability and Its Importance

When using concrete in civil construction, there are several factors that can directly influence the result of the work. The permeability of concrete, for example, is a property that increases durability that, over time, can suffer damage due to external factors, such as rainwater.

For a concrete to be considered to be of good durability, the water-cement ratio and permeability must be observed, that is, the capacity of the material to absorb moisture. However, other factors need to be analyzed when choosing the best material, such as the pores of the concrete. Understand now!

What are the types of pores in concrete?

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A concrete structure it is complex and composed of many empty and solid components. The process of hydrating the cement mass forms several pores within the structure. These pores are responsible for transporting certain substances, such as water and harmful gases, to the inside of the material.

An excellent alternative to prevent the deterioration of concrete and its reinforcement is to reduce the flow of these substances within its structure. And in order to calculate the permeability level of the material and ensure good strength, it is necessary to understand about the types of pores in concrete and how to classify them.

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Types of pores

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There are air pores, which are classified into two types: trapped air pores, which appear in Concretion of concrete, and those with incorporated air, which are the result of the use of specific additives for the incorporation of air. There are also interlaminar pores, which are manifested between concrete hydration products, and capillary pores, which appear in the space not occupied by these moisturizers.

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Pore sizes

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There are large pores or macropores, capillary pores, mesopores, and micropores. As these pores help the penetration of harmful agents into the concrete, the material should ideally have few holes, so that it can offer greater durability.