Prefabricated reinforced concrete slabs - material characteristics
The presented structures are constructed of reinforced concrete slabs, which are manufactured at specialized plants. They are a type of overlap that does not contain beams. Plates or panels in this case fit tightly to each other, and the gaps between them are then closed.
In this form they carry all the burden placed on them. At the same time, during installation, the level of the plates must be strictly observed. The plates can be joined together by means of anchors made of steel. They are fixed in special metal loops.
Since they are manufactured in the factory, and only then are brought to the construction site and there are mounted, this greatly facilitates the work of the builders, who do not have to fill such slabs directly at the construction site. Moreover, they often have quality higher than those prepared directly on the construction site.
Prefabricated reinforced concrete slabs are usually made with cylindrical voids inside, and can be presented as solid panels. The first type of overlap pours out of the mixture of lightweight concrete, and the second is a block with a lot of round holes that make the plates easier.
They are manufactured taking into account the bearing capacity of the overlap, and also depending on the required span. It is best in private construction to use such types of structures in houses made of bricks. And if we talk more concrete, then such slabs overlap the basement or basement floor.
Prefabricated prefabricated concrete blocks - pluses and minuses
These types of structures have an undoubted advantage: they are not afraid of moisture and damp, so they do not rot and can not be corroded. Moreover, after laying the floor it is very easy to finish it. At the same time, the installation requires a minimum amount of time, and there is no need to wait for the shrinkage of the slabs, so the finishing work can be done immediately.
Also need to pay attention to the relatively cheap cost of reinforced concrete slabs, because for their manufacture, expensive materials are not needed. In addition, concrete is not subject to burning and deformation. Another advantage is the qualitative variety of design in terms of thickness, shape and dimensions.
However, these reinforced concrete structures have their drawbacks - for example, the need for special lifting equipment for installation, since the plates have a fairly large weight. Naturally, in this case additional funds are required for transportation. Still have to count the possibilities of bearing walls to prevent their destruction under the weight of the overlap.
Reinforced prefabricated slabs - types of carcass in slabs
As for the variety of structures, the reinforced concrete prefabricated slabs can be welded or knitted .The fact is that for reinforcing the strength of the board metal reinforcement is used, which is fastened together in several ways.
Welds are usually manufactured by welding a framework of reinforcing bars. To do this, use point or arc technology. The best option is still contact-point, which uses a semi-automatic welding method, and the quality of the process is constantly monitored. And horizontal and vertical reinforcement bars are used.
The knitted frame is a more complicated option. For its assembly, already bent rods are used, which are connected together by a soft but strong wire.
The ZB overlap has a thickness of 6 to 10 cm, and the dimensions of their area may vary, depending on the size of the span. All these parameters should be determined at the project stage, correctly calculating the load on the foundation and bearing structures.