Aerated concrete house: how to keep from destruction, protect from moisture, frost (composition that will protect the blocks 100%)

Now they often build houses from aerated concrete. Blocks are 3 times cheaper than brick and timber. Its light weight is very convenient for construction and there are no large transport costs for transportation. Even one person can do the masonry. Another plus: non-flammable material, you can cut it with a regular hacksaw.

Many talk about harm of aerated concrete. The material is made from lime, cement, sand, water. In order to form pores, add aluminum powder, sodium hydroxide, as well as sodium sulfate. These additional additives are not even 400 grams. per cubic meter of raw materials. Therefore, we can say that the gas block is safe. Concrete dust can be harmful during drilling, cutting and other manipulations with the block.

Many more ask the question: how to protect the material from moisture for many years. This is especially true for an aerated block house without decoration.

Indeed, aerated concrete has a porous structure and has a high moisture saturation. As I saw one experiment. One blogger soaked a gas block in a bathtub, then put it in the freezer, the block began to collapse from touch. Under normal conditions, this should not happen with aerated concrete. Aerated block walls are not particularly afraid of precipitation. They are under the roof. The only thing that confuses is the slanting rain. But in this case, the block should dry quickly.

If someone fears for the safety of the gas block, so that it does not collapse from moisture and does not crack from frost, there are funds. These are hydrophobization and waterproofing.

To save the gas block from destruction will help water repellent. This liquid repels water and includes silicone components. The mixture should be applied to external walls. As a result, a special film is created that protects aerated concrete from precipitation. The liquid does not affect the vapor permeability of the block and penetrates into the material only by 3-5 mm. For such protection, you can plaster. There are solutions with a solvent or water-based. With a solvent, the composition is more reliable and durable.

Waterproofing - another way of protection. This is the treatment of the outer walls of the house from the aerated block with materials that protect against moisture. For example, plaster, impregnation, deep penetration primers with other treatments, etc. You can decorate the walls with decorative materials: stone, tiles, siding, etc.

Good composition for processing - Indelible antiseptic Neomid. This concentrate is diluted with water and applied to walls or individual problem areas. Sometimes it is enough to process only the bottom rows. Such protection will ensure the long-term safety of the gas block. Water falling on the treated surface is not absorbed and flows down.