If you have found a crack in concrete, you do not need to despair. A similar difficulty appears due to poor filling. Again, this is done when the construction is quite ancient or has not been repaired a long time ago. In any case, do not despair: everything can be returned.
When you need to beat the alarm? The sealing of cracks in concrete, as we said, is not considered a huge difficulty. There are several reasons:
Mechanical influence (water, load or vibration);
Exposure to chemistry (alkali, acid or salt);
Physical influence (dampness, erosion or temperature exhaustion).
If this fate overtakes you, you must quickly reflect on the options for the resumption of concrete, the whole building may turn out to be differently under the threat of complete destruction.
What option to use?
There are a couple of options. Depending on which system and how much it has suffered.
Injection “quite popular option. Used to eliminate small cracks. A solution is poured into the places of defects, which freezes, taking the necessary shape.
Nanisen of the mixture. To eliminate cracks on the steep surface. Specialized mixture is applied to the entire surface. Когда все наконец застынет, используют герметический раствор для крепежа результата.
Additional layer. Not always a great option. But it is he who performs a particularly dense shell, it protects the surface from new cracks.
It is important to know: you do not need to despair if, after the reconstruction, the structure gave a shrinkage, and your repair actually did not change anything.
How to remove cracks at home?
If you are a developer, and you did not have the happiness of getting around this problem, then you must know about different options for an independent solution of the problem:
Using cement dough. A substance for knitting is added to the main composition. It happens either a resin (epoxy or polyester), or another repair mixture. This option is suitable for small cracks.
If the crack is small (the size is less than three centimeters), you can use a patented mixture. Making it is simple: mix Portland cement, sand and water in a proportion of 1: 3: 3. For fidelity, PVA glue is added. If the crack is deep, but plus to this is small, it is possible to cost a cement test.
Attention: Do not forget about the preparatory cleaning of the plane. To do this, use any cleaner, and also a brush with water. After cleaning, get wet with a sponge to dry the crack. When cleaning, you can see that part of the reinforcement is shown in the crack. There is no need to worry about the scope of the problem. Just try to clean and frame. Only unlike concrete, it is additionally finished with rusty products. In advance before this, you need to lay small pieces of wire (approximately 4mm) into the furrows you fixed. Then, with the help of a brush, a primer layer is applied. He does not have to be through Chur Tolstoy. The best option is “no more than 3 mm. Not waiting until the primer dries, apply a specialized mixture. Everything must be done very smoothly and carefully.
External slope with your own hands