Features of the interior of the houses from state -concrete plates
The plaster of aerated concrete buildings is significantly different from the plaster. The reason for the difference lies in the very difference between these materials. Even with relative structural similarities (both of these materials have a cellular structure) and about equal density aerated concrete and foam concrete differ among themselves ingredients that are used to create the final product and production technology.
Foam concrete is made from cement-sand mixture and foaming agent. The result is blocks with a closed porous structure. Aerated concrete is made of cement, lime, sand and water with the addition of aluminum powder for gas formation. After the mixture is poured into the shape, it is placed in an autoclave until completely solidified. This technology allows you to achieve an open cellular structure. Such a difference in the structure is fundamental, because it is open pores that allow the gas concrete blocks to “breathe”.
This feature must be taken into account when selecting materials for plastering by a state -owned concrete, because incorrectly selected raw materials for decoration can subsequently lead to problems such as swelling, detachment, cracks on the surface. Since aerated concrete, due to the features of its structure, has high hygroscopicity, water-and-permeability, the main task of the facade plaster is to protect the walls from atmospheric precipitation and temperature extremes. Therefore, you need to select materials with high levels resistance to moisture and frost.
The process of plastering facades from aerated concrete blocks is carried out in several stages, compliance with the technology and sequence of which are extremely important.
Applying to the surface of the walls of the primer. It is best to use the strengthening and hydrophobizing composition based on combinations of acrylatesylcsan, such a layer will strengthen and protect the walls from moisture.
Placement of a grid of alkalitated fiberglass.
Applying a special plaster mixture for facades from state-concrete blocks with a layer of 7-9 mm. It should be light, plastic, frost -resistant.
