Any building of horizontal position must have an overlap. It is necessary to separate adjacent rooms and perform some protective functions. Currently, prefabricated-monolithic overlap can be completely erected on their own, without resorting to the help of professionals. All you need is time and desire, as well as some theoretical knowledge that you will get from this article.
About the features of precast technology
This type of overlap appeared relatively recently. It is for this reason that far from all of them use them, however, the future lies with them. Let's take a quick look at what this technology is.
Today you can buy blocks of 6, 4 and 3 meters in length, of course, that they have different weights. In addition, there are two types of monolithic runs on the supporting structure: 900 and 1300 kg / m 2 . If you are going to do this kind of overlap, then the concrete is compacted with a bayonet, which is necessary to ensure adhesion. In addition, manufacturers achieved good structural performance through the use of porous concrete. If the precast-monolithic overlap is made of polystyrene, the design has a relatively light weight with good load-bearing capacity. At the same time, the load on the walls of the building is also reduced, which, without a doubt, is a significant plus.
Do-it-yourself monolithic floors
When performing work, it is necessary to observe the technology and sequence. In addition, it is important to do everything slowly and efficiently, the only way you can get a really reliable design.
At the first stage, capital beams are laid. The surface of the wall should already be cleaned and covered with a layer of concrete 1-1.5 cm. In this case, the bearing depth should not be less than 12 cm, and on the crossbar - 9 cm. Beams should have inventory intermediate supports for the duration of the work, remember this. It is advisable that the supports are every 1.5 meters. Cross blocks are stacked sequentially, in transverse rows. This is necessary in order to exclude loading runs. Make sure that the gap between the blocks is as small as possible.
An reinforcing mesh is laid over the structure , preferably with an overlap, after which the surface is cleaned before concreting. In principle, the construction of prefabricated monolithic floors with their own hands almost ends there, only concreting remains.
A bit about the benefits of systems
Of course, no one wants to buy what, in his opinion, is insufficiently high-quality or effective. But in this case you can be sure of excellent operational properties. For example, prefabricated monolithic overlap will cost much cheaper than slabs or monolithic systems. With all this, prefabricated structures are not inferior to them in strength, but rather win. Of course, one cannot fail to say about the installation price, which is much lower. This is due to the fact that there is less need for raw materials to complete the installation, and therefore, the complexity is significantly reduced. All these advantages allow the use of prefabricated-monolithic flooring not only in private construction, but also in the industrial sector. Such floors can withstand loads of up to 1.3 tons and are mounted even where seismicity reaches 7-8 points.
What will be interesting to everyone
We figured out the advantages of these floors, and now I would like to say about what else they will be useful for you. Firstly, the need for detachable expensive formwork will disappear, and the number of installation equipment will be significantly reduced. It will be enough for you to have supports for the longitudinal beams. There is no need to use such heavy equipment as cranes, and this is a significant savings. In addition, you are not required to be highly qualified, and the speed of work will be slightly higher.
For example, for 100 square meters you will need a team of 3 people and three working days. Of course, it makes sense to say that significant savings are achieved by doing the work yourself. If prefabricated reinforced concrete (monolithic) floors are installed by specialists, then it is not worth hoping for significant benefits. But that is not all.
A few words about the shortcomings
As practice shows, such structures have only one significant drawback - the need to install formwork over the entire area where construction work is carried out. Nevertheless, you can go the alternative way and find a way out of this situation. For example, the installation of separate, rather than solid formwork will significantly reduce the complexity of the process. It can be collected in the course of the work, which is more convenient. In addition, prefabricated monolithic floor slabs require a reinforcing frame with a cross section of at least 8 mm. This requirement must be fulfilled to obtain a high-quality and, most importantly, strong and reliable construction. In principle, such a solution has no other shortcomings, which is why it is so popular and in demand. In the coming years, prefabricated structures will only become more popular.
Prefabricated monolithic flooring
Ordinary interfloor monolithic ceilings are much more difficult to install, due to their high mass. Today, such designs in multi-storey buildings are not used very often. Sometimes this is associated with a heavy load. However, they are installed as an overlap between the top floor and the roof. But often the installation is carried out between the first and second floors. The fact is that such a design allows you to transfer the weight of the structure and furniture in the room to the bearing walls, which is very convenient and profitable. But you always need to have a project with you: if there is none, then the work should be left to professionals. Although you are free to do anything in your home, remember the risk. If you are even a little versed in this topic, this will not be a problem for you, especially if you use blocks of short length, since their mass is significantly less than long floors.
Finally
Today, a huge number of manufacturers are represented on the market. Which one you choose is up to you. Of domestic products, prefabricated monolithic floors "Marco" are very popular. Consumers talk not only about the affordable cost of products, but also about quality, as well as the high strength of structures. In addition, if you wish, you can hire specialists who will do everything for you. In any case, prefabricated systems look advantageous against the background of ordinary monolithic ceilings, which have significant weight and are installed by large forces and equipment. However, you should not expect that all new buildings will be made of prefabricated structures, since a large supply of plates needs to be put somewhere. In principle, that’s all.