There is an opinion that the clinging waterproofing of the walls of the basement from the inside of the room is not effective and the work on its arrangement is a waste of money. On this score, there is no consensus even among professionals. But it seems to us that the problem of efficiency in this case lies not in the chosen method, but in the fact that not the technology of the work is being observed or a surface is selected for processing that is not suitable for the composition.
The penetrating type of waterproofing is perfect for a situation in which the material side of the issue is very limited. Additives included in such formulations react with cement and water. As a result of the reaction, crystals form in the body of the wall, which fill cracks and voids. At the same time, the penetrating primer is able to penetrate into the body of the wall at a distance of up to 150 mm.
What is the essence of the problem
Of course, the external treatment of the basement walls is more effective. But if there is no way to open the walls and carry out high-quality work on the device of the hydraulic barrier, then internal processing is quite a suitable option.
The first thing to consider when choosing a deep penetration primer is the concrete composition of the surface to be treated. Before you buy a primer, it’s worth clarifying which solution was used to build the basement walls, namely what additives and additives were used.
The composition will not work if a surface with cracks larger than 0.5 mm is selected for processing. Such defects will make the structure very loose and there will be no use against waterproofing.
Theory and Reality
All the data that manufacturers give about the properties of penetrating primers can only be in ideal conditions. That is, a concrete block is taken, impregnated evenly with water, and then a primer is applied to it and measurements are taken.
In reality, a block or monolith has a different degree of saturation with water in the section of the wall body, and has a different density, temperature and porosity. As a result, the primer enters the wall at different depths and the process of colmation has different time and saturation. Simply put, crystals form at different depths, at different times.
But if you take into account the impossibility of checking the effectiveness of clogging leaks from the inside of the room with a deep penetration primer, then exactly the same problem will arise with external application.
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