After complete drying of the brickwork, when arranging the front finishing of the walls of the building, white streaks appear on top of the ceramics.
These are crystallized salts on the surface of ceramic bricks. They are called efflorescences formed on the facing masonry.
They not only spoil the appearance of the building, but also gradually create conditions for the destruction of the wall material.
The raw material for making bricks is natural alumina.
After firing the molded brick, the material acquires a finely porous structure. This property provides strength, low thermal conductivity, lightening the weight of the part, but allows liquids to pass through the formed capillary channels through the brick material. Moisture carries dissolved salts, which, when evaporated on the surface, form crystals that are firmly attached to the surface.
Experts say unequivocally yes. Over time, salt crystals will block the moisture passage over time.
It will accumulate inside the material. Under the influence of low temperatures, the resulting ice will rupture the ceramic. The process does not pass quickly, it is therefore dangerous in twins. You can get used to the slow process of destruction, and when a visible result comes, you will have to take drastic measures. In this case, it will help to replace the masonry section or completely the wall.
The process of action of salts includes a chain reaction. At the first stage, water forms microcracks, then the amount of precipitation penetrating into the brick increases. As a result, the affected area expands, the formation of material swelling and the appearance of chips is observed. At the end, the brick becomes loose from cracks and can no longer perform its functions. The process ends with the complete destruction of the material.
There are several factors leading to the appearance of harmful salt stains. They can be divided into natural and erroneous human actions.
They lie in the natural properties of the chemical composition of raw materials used for the manufacture of ceramic bricks, the composition of water for the manufacture of masonry mortar.
The use of the necessary additives for the correct operation of the mixtures in a certain period of the year.
The chemical composition of the soil on which the building is being built.
Saturation with salts of air masses of a given territory.
A man by his erroneous actions when the proportions of anti-frost additives are not observed during the preparation of masonry mortar. The oversaturation of the mixture with the plasticizer will further lead to efflorescence on the surface.
Absence or destruction of the blind area along the building perimeter. Splashes from raindrops fall on the surface of the wall and overmoisten the material.
Measures to ensure the protection of brickwork from efflorescence can be divided into two stages.
These include the following actions
.. The integrity of the blind area ensures not only the absence of splashes on the walls and foundation, but also the penetration of sedimentary liquid to the foundation,
organization of the correct storage of bricks. Providing a canopy of the site. The presence of pallets under the bundles of material.
Covering it with a waterproof material,
These funds have a hydrophobic property. They are designed to completely remove salts and lime stains from the surface of the walls of facades, plinths. The products can even remove old dirt. The substance penetrates deeply into the pores of the material, thereby providing a seal for the penetration and accumulation of moisture.
It is necessary to use universal means.
They contain no acids. They act gently on the brick. Re-processing is carried out at least once every two years.
Interesting! Such a tool can be used to treat the interior of the car from the outside and its glass, as an anti-rain agent.
During the measures taken to prevent or remove efflorescence, will ensure the safety of the building for a long time.
He is attentive to the rules of production in construction. Many water repellents impart a brighter color to the brickwork, enhancing the decorative effect in the appearance of the building.
Posted By: Work Style |10, Nov 2020
Posted By: Work Style |05, Nov 2020
Posted By: Work Style |13, Nov 2020
Posted By: Work Style |10, Nov 2020