Reinforced concrete blocks - the basis of modern

No matter how loud it may sound, it is reinforced concrete blocks that are used in the construction of almost all large-scale objects (apartment buildings, administrative buildings). In private housing construction, they are less common, as they require the use of specialized equipment, but trust us, if the budget allows, you will choose them as the basis for your home.

Foundations

Under the foundation of any structure, we understand its foundation. Reliability, durability and safety of operation of the entire structure depend on how well it is designed and built.

The base of the building can be executed in two versions:

• Monolithic.
• Prefab.

Both that and other option, at the correct laying, it is guaranteed will provide all necessary characteristics for the basis. However, the construction of foundations of prefabricated elements is carried out in a much shorter time.

Note! For the device foundations use concrete products with marking FL and FBS.

Technical parameters, versatility and affordable price have made this building material very popular throughout the country.

It is suitable for:

1. Base devices for structures and buildings of any weight and area.
2. The construction of the walls of the basements.
3. Building on soils of any type, including unstable, such as:

• Пучинистые.
• Weak.

Note! Without exception, prefabricated reinforced concrete products must comply with GOST developed for each specific element.

Constructive element FBS and FL

FBS is produced in accordance with GOST 13579-78. This reinforced concrete product is made of heavy concrete brand M100. FBS has the shape of a regular parallelepiped with grooves in the ends for filling with a solution at the junction points.

Foundation blocks are produced in several standard sizes:

• In length from 400 to 2400 mm.
• 300, 400, 500 and 600 mm wide.
• In height of 300, 400, 500 and 600 mm.

Designations FBS in the marking is given in decimeters.

For example, a product with marking FBS 12 4 6 has the following sizes:

• Length 1200 mm.
• Width 400 mm.
• Height is 600 mm.

Note! All reinforced concrete products must be necessarily equipped with mounting loops of reinforcing steel that are reliably tied to the frame of the product - in order to simplify transportation and installation.

The installation of supporting structures made of precast concrete will help not only to shorten the construction time, but also material costs.

We give the average cost and dimensions of the running blocks:

• FBS 12-4-6 with dimensions of 1180x400x580 mm (volume 0.265 m3) weighs 640 kg and costs 1200-1250 rubles.
• FBS 12-6-6 with dimensions of 1180x600x580 mm (volume 0.398 m3) weighs 960 kg and costs 1700-1750 rubles.
• FBS 24-3-6 with dimensions of 2380x300x580 mm (volume 0.406 m3) weighs 970 kg and costs 1800-1850 rubles.
• FBS 24-4-6 with dimensions of 2380x400x580 mm (volume 0.543 m3) weighs 1300 kg and costs 2400-2450 rubles.
• FBS 24-5-6 with dimensions of 2380x500x580 mm (volume of 0.679 m3) weighs 1630 kg and costs 2900-3000 rubles.
• FBS 24-6-6 with dimensions of 2380x600x580 mm (volume 0.815 m3) weighs 1960 kg and costs 3400-3550 rubles.
• FBS 6-3-3 with dimensions of 600x300x280 mm (volume 0.05 m3) weighs 121 kg and costs 700-800 rubles.
• FBS 9-4-6 with dimensions of 880x400x580 mm (volume 0.204 m3) weighs 489 kg and costs 1100-1200 rubles.
• FBS 9-6-6 with dimensions of 880x600x580 mm (volume 0.306 m3) weighs 735 kg and costs 1300-1350 rubles.

Elements marked with FL blocks are “cushions” of a trapezoidal shape with a large lower support. They are mounted, as a rule, in the bottom row of the base of the house.

Reuse

Reinforced concrete foundation blocks that were in use, with careful dismantling, remain in good condition and can find life in new structures. There are many companies offering for sale FBS for reuse. The cost of used products is lower by two and sometimes three times, while the strength is practically not lost.

When purchasing used blocks, pay attention to their condition (visible defects):

• Significant chips.
• Cracks.
• Lack of mounting loops, etc.

The range of plants ZHBI End Form

On the foundation blocks, the list of products of the manufacturers is not exhausted (most of them cannot be established by hand).

In the construction of precast concrete is used a whole detachment of structural elements:

• Blocks of ventilation ducts.

• Details of sanitary underground and above-ground structures.
• For piling work.
• Power lines and contact lines of railways.

Interesting! They even build reinforced concrete ships that have proven themselves to be stronger than metal and wooden ones.

Pile work

Piles are used to transfer the load from buildings under construction to the underlying deep soil layers. In addition, the piles will help compact the soil and increase its carrying capacity.

Reinforced concrete dowel is used as a constructive element of embankments, retaining walls.

Sheet piles, immersed in the ground closely one to one, are used for the installation of fences and waterproof lintels.

Their purpose:

• Protection of pits from groundwater.
• Containment of soil from bulging.

Sheet piles are produced with prestressed reinforcement in cross section:

• Rectangular groove and crest.
• Trapezoidal.
• Semicircular.

Power supply

Reinforced concrete stepchildren are used to fasten power lines:

• With voltage up to 35 kV inclusive elements of T-shaped or solid section.
• Accordingly, for 35–1100 kV, these are hexagonal, octahedral pipes or round pipes.

Pasynka made with tense and non-stressed reinforcement of vibrated concrete. Immersion of reinforced concrete stepsons in the ground occurs with the help of specialized vibrators or pressing units on the basis of the tractor. In the same sphere, reinforced concrete attachments are used to secure the contact networks of railways that are collapsing in the underground part of the supports.

Attention! Reinforcing of concrete piles using copra is not recommended. With the protection on the pile head, blocking is fraught with the destruction of the concrete on the top of the pile and the exposure of the reinforcement.

When installing reinforced concrete stepsons in weak soils, the instruction recommends reinforcing them with bars from impregnated wood or reinforced concrete.

In the organization of power supply systems, reinforced concrete logs are also used to exclude contact of electrical equipment with the ground. They are also used as the basis for the installation of equipment in enterprises.

A few words about other concrete products

1. Ventilation units are mounted in public and residential buildings to organize ventilation:

• Kitchens
• Toilets.
• Bathrooms.
• Other rooms with high humidity.

1. Reinforced concrete semi-frames are designed for installation of single-span industrial and agricultural structures.
2. Reinforced concrete channel is used for laying various kinds of utilities and piping.
3. Among other things, reinforced concrete bridges are built from prefabricated elements.

Well, the main fastener fastening the various products described above is the so-called reinforced concrete metric bolt (used for anchoring structures).

Conclusion

You can talk endlessly about block products, cite examples of use (as we talked about reinforced concrete ventilation blocks), prove the advantages and challenge the disadvantages. We tried to briefly describe and describe the “necessity” of using this building material, you decide whether to use it in construction or not.

In the presented videos in this article you will find additional information on this topic.