Brickwork reinforcement: reliability of walls

Brick walls are often perceived as something monolithic and eternal, which does not require additional interventions for stability. However, even the highest quality bricks and the best mortar cannot guarantee the absence of cracks during ground movement or shrinkage of the building, so builders resort to proven reinforcement technology. The metal inside the masonry works on tension, compensating for the physical disadvantages of ceramics or silicate, which perfectly hold compression, but succumb to bending deformations.
Engineers calculate loads in such a way that the reinforcement takes on internal stresses caused by temperature fluctuations or uneven load on the foundation. Neglect of this stage often leads to the appearance of characteristic spider webs of cracks in the early years of the house's operation. The introduction of steel or composite elements into the seams is not just a reinsurance, but a technological necessity for the durability of the structure.
Choosing the material to strengthen the rows
There are several approaches to choosing reinforcing elements, and the solution depends on the specific tasks and type of brick. Classic steel mesh remains the most common option due to its accessibility and understandable strength characteristics. However, modern technologies offer basalt and fiberglass bonds that are not susceptible to corrosion and do not create cold bridges in the wall, which is especially important for energy-efficient homes.
Working with the material requires compliance with certain rules in order not to disrupt the geometry of the masonry:
- The diameter of the rods should be less than the thickness of the seam, so that the mortar completely covers the metal and protects it from contact with air. If the rod protrudes, corrosion will begin, which will eventually tear the seam from the inside.
- The meshes are joined with an overlap of at least 15 centimeters, which ensures the continuity of the reinforcing belt around the entire perimeter of the building. Breaks in the grid at the corners of the building are unacceptable, as these are the most vulnerable places.
Using composite materials requires different skills, as they behave differently when stretched. Fiberglass is lighter and more convenient to transport, but its modulus of elasticity is lower than that of steel, which must be taken into account when calculating loads on load-bearing walls of multi-storey buildings.
The technology of laying in horizontal seams
The process begins with cleaning the surface of the previous row of bricks from construction debris and dust. The grid is laid directly on the brick or on a thin layer of mortar, depending on the thickness of the bars and the requirements of the project. It is important to ensure that the reinforcement is completely embedded in the binder, otherwise the metal will start to rust and the plastic will not adhere to the blocks properly.
The frequency of reinforcement is determined by the project, but there is a gold standard for load-bearing walls. Usually, the grid is laid through every 3-5 rows of masonry, and in places of increased load, such as openings of windows and doors, reinforcement is required in each row or through one. The angles and junctions of the walls require special attention: L-shaped elements are often used here, which connect perpendicular planes into a single rigid system.
Controlling the thickness of the seam becomes a critical point, as excessive thickening due to reinforcement reduces the strength of the masonry itself. Experienced bricklayers sometimes use special clamps or adjust the wire diameter so that the seam remains within 10-12 mm. This is a painstaking job that slows down the construction of walls, but pays off with no problems with the facade in the future.
Vertical reinforcement and its features
In earthquake-prone areas or during the construction of columns, horizontal reinforcement alone is not enough. Vertical reinforcement involves passing rods through voids in the brick or creating special wells, which are then filled with concrete. This turns a brick wall into a kind of reinforced concrete structure capable of withstanding enormous lateral loads.
The rods are anchored into the foundation and pass through the entire height of the wall, connecting with the ceiling armature. This approach requires the highest precision in laying, as the mismatch of the voids in the bricks will make it impossible to install the rods. Often, special hollow bricks or blocks with enlarged holes are used for such purposes.
Filling of voids with mortar should take place in stages to avoid the formation of air pockets around the reinforcement. Concrete vibration in narrow channels is difficult, so mobile mixtures with plasticizers are used. The resulting structure has a solidity that is unattainable for conventional masonry, while maintaining the appearance and thermal properties of a brick house.
Well-executed reinforcement remains an invisible defender of the building throughout its entire service life. The absence of cracks in the plaster and the preservation of the geometry of the openings even after decades is a direct result of properly embedded metal or composite in the wall thickness. Beavercoin: beste krypto casinos für österreicher : Rakebit, Bitsler, Rainbet...