Iron casting is an effective way to strengthen the material

A concrete structure or screed made in the courtyard often has to be protected from external exposure to moisture, frost and sun.

Therefore, the question arises, how tostrengthen the outer layer of the specified material, make it moisture-resistant, durable and durable. To do this, use such a special technology, as iron concrete. This process is in many cases necessary during construction.

After doing the concrete work soon you cannotice the appearance of water on surfaces. This is due to the fact that the heavy components of the specified material - cement, sand and gravel - fall down, displacing water. As a rule, while the top layer becomes sandy and less durable due to a decrease in the concentration of cement. And in order to protect and strengthen it from water and other atmospheric and physical influences, apply technology - concrete ironing.

The quality of this process depends oncompliance with certain requirements and, above all, should not allow drying of the upper layer of this material. Before ironing it should be wet and not be exposed to direct sunlight.

In general, this process is simple.At home, you can make iron concrete with their own hands. The main thing is that you need to know what methods exist for the implementation of this process and what material to use in this case.

There are two ways to do this.protective coating. The first is the ironing of concrete with sieve sieve cement. This is the “dry” method of this process. There is also a “wet” method - sieved with cement diluted with water with the addition of liquid glass or sodium aluminate. Other impurities and additives that may improve moisture resistance and durability of the coating may also be present in the mixture.

In the first case, using dry cement, you canstrength add powder from quartz. In this way, ironing of concrete on horizontal surfaces is performed. At the same time, the cement is poured into a fine sieve and sprinkled evenly on freshly laid concrete, tapping on the sieve. The specified layer should be within three millimeters.

Then with a spatula or specialwith a trowel, float a dry mixture over the entire surface of the concrete. The cement in this case draws in moisture from the surface of the fresh concrete and turns into a batter. Now this mixture is spread to a smooth glossy surface over the entire area of ​​a horizontal concrete screed.

Another method is used on surfaces from whichdry cement may fall. In this case, use the "wet" method. To do this, it is necessary to sift the cement into the container first and prepare the mixture by adding water and various strengthening impurities and moisture-proof components.

Then this mixture is applied with a spatula to the surface of the concrete with a layer of the same thickness as in the first method. You need to smooth down even with a trowel-trowel.

The wet method is considered more waterproof and durable. It can also be used on the horizontal planes of fresh concrete. This method is the most effective.

If the concrete is ironed in a place where direct sunlight is possible, then it is better to plan the work so that it is done after sunset, in the evening.