Perforated bricks belong to the masonry bricks. They have vertical, continuous openings that run perpendicular to the bearing joint. Depending on the dimensions, number of holes, hole pattern, web thickness and bulk density, a further subclassification takes place.
bricks High-perforated bricks can be used to produce load-bearing components. Wall thicknesses of 36.5cm are common. Most bricks are joined via tongue-and-groove joints (mortar-free connection).
Disadvantages are, for example, an increased risk of breakage when drilling into the stone. The attachment of heavy objects is only possible with the help of special dowels.
Monolithic brick construction has been making a comeback for years with the introduction of highly thermally insulated perforated bricks. However, due to the porosity of the material, the static properties are limited.
Filled perforated bricks already carry the thermal insulation and therefore do not require any additional insulation systems that are expensive to protect. Due to their good thermal and sound insulation as well as their static properties, they are particularly suitable for residential construction in masonry up to 9 storeys.
In order to meet the high demand for housing, especially in metropolitan areas, high-density construction must be carried out. In multi-storey residential construction, the requirements for wall building materials are particularly complex and topics such as sustainability and fire protection are increasingly coming into focus.
Sustainability:
Perforated bricks are fired from the natural raw materials clay and clay. The raw materials can be mined gently and close to the surface. The mining areas are located close to the production sites and can be recultivated after use.
Fire protection:
Due to the manufacturing process, in which the bricks are fired at temperatures of over 1,000°C, perforated bricks have good fire protection properties anyway. In concrete terms, this means that plastered on both sides, perforated bricks achieve fire resistance class F90-A (fire resistance duration 90 minutes, essentially non-combustible according to DIN 4102) as well as fire wall suitability from a wall thickness of 36.5 cm and thus offer a high level of safety against fire and smoke.
If the wall thickness is appropriate, buildings with wall structures made of perforated bricks do not require any additional insulation. The air pockets in the cavities of the brick significantly improve the thermal insulation properties of the wall. As a rule, another layer of perforated bricks is laid in front of the statically relevant brick wall, which acts purely as an insulating layer.
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