To increase the strength of concrete, brick, aerated concrete blocks, additional strengthening is necessary. This helps to prevent the appearance of cracks, which leads to a violation of the strength of buildings and their integrity.
Varieties of reinforcing materials
It is also necessary to reinforce the floor tiles in the manufacture of arched structures, fences, cages. The choice of material depends on the method of application, the required strength and other indicators.
Most often, a wire model is used for reinforcement. This is a grid with a cell of 50x50 mm and a section of 3-4. It is considered a universal material, suitable for strengthening walls on lower floors and solving many other problems.
This material is much heavier than its plastic counterpart: the weight of m2 of a masonry grid of 50x450 mm is more than 3 kg, since steel was used for its manufacture. Although reinforcing materials made of polymers are lighter, more flexible and cheaper, they are less stable, they are used very often, but not in the construction of load-bearing floors and walls.
How to find out the weight of reinforcing material?
The reinforcing mesh may have a different cell size, an additional insulating layer, which affects its mass. To determine this parameter, there are several special programs and formulas. They are presented on specialized web pages. Most often used for reinforcing mesh masonry 50x450.
Weight 1m2 is determined as follows:
- Measure the length of the structure that is needed to cover 1 sq / m with a cell of 50x50 mm. To create a material of such magnitude, you will need 42 meter pieces of wire.
- Using a mathematical formula, determine the cross section. The indicator for a wire of different sections (round, square, oval) will be different.
- Using the formula (V = S × L), we calculate the amount of reinforcing material consumed.
- The weight of the masonry net 50x50x4 mm can be determined by multiplying the density indicator by the volume indicator. The density index can be found in the reference book.
One example: with a diameter of 4 mm, a square meter of mesh will weigh 3 kg 620 grams. If you use a wire finer than just 1 mm, the weight of a masonry net of 50x450 mm of the same size will be 2 kg 210 grams. The material for the manufacture of which the wire was used is 1 mm thicker (5 mm) will weigh 5.75 kg, respectively.
Application of zinc coating
Reinforcing material is coated with zinc to increase corrosion resistance. Thanks to this, the product can withstand the effects of humidity when laying it under a brick, concrete, foundation. Because of this, the weight of the masonry net 50x50x4 mm increases, but strength indicators improve.
To apply a zinc coating, the following steps are performed:
- Lay the blanks to the surface. It should be perfectly flat and sized to fit a specific layout.
- Weld the individual elements.
- To make the coating stick to the surface as much as possible, notches are made on it.
- Using galvanic technology, a zinc coating is applied to the surface.
The zinc layer increases the diameter of the rods, due to which the mass of the material is also heavier. Accordingly, the weight of the masonry net 50x450 will exceed 3.92 kg. To get strong and durable material, but with less weight, you can use a grid with large cells. Checking the quality of the reinforcing material is very simple. You need to weigh it and compare with the data from any table. Deviation should not exceed 5%. If a large number is indicated, this may indicate the following:
- Manufacturer dishonesty.
- Use in the manufacture of thinner wire.
- The use of steel material of low quality.
The use of reinforcing mesh
This material is urgently needed at every stage of construction work, from the manufacture of the foundation to the finishing work. The main reason why the mesh is used is plastic deformation caused by exposure to prolonged loads, temperature, moisture. The masonry grid 50504 is called to get rid of this design flaw. The weight of 1 m2 is not so large as to become a serious obstacle to its use, but the strength characteristics of structures increase significantly.
Using a grid reinforce:
- Reinforced concrete.
- Brickwork.
- Masonry walls.
- Road coverings.
- Tile masonry.
- Flooring.
- Mounting workings in the mines.
- Foundations.
- Overlapping.
- Stucco.
In addition, greenhouse and greenhouse frames are built from a grid of this size. Plots and territories enclose it, and cages for keeping fur animals, birds and other small animals are made from it.