PC overlap plates are most common in private construction. This affordable and easy-to-install material has already managed to establish itself as an optimal option for the construction of inter-storey floors in a private house.
Due to the voids inside the material, the overlap themselves reduce the load on the foundation. At the same time, PC overlap plates are one of the few materials that is relevant and in the era of monolithic construction.
If you look at the structure of the material, you can see that inside the slab have a rounded form cavity. They not only reduce the weight and load on the foundation and the framework of the building, but also provide good insulation, which does not produce heat from the house, and non-inside outsiders. That is why such plates of overlaps are most often used in the construction of residential buildings.
You can argue much, what type of overlap is better, hollow plates or monolith. And in that, and another option has its advantages, as there are weaknesses.
For example, hollow overlap plates, depending on their size, have load limitations. However, they also have high thermal insulating and sound insulation properties, compared with monolithic structures.
One way or another, it will be about choosing the plates of the PC overlap and the features of working with them.
How to choose PC overlapping plates
In the process of manufacturing plates of the overlap, a concrete with an increased cement content is used. Metal design inside the plate avoids deflection and deformation during installation and operation. Special technology makes a ready-made construction element particularly durable.
- In the form of formwork, steel reinforcement is pre-stretched.
- A concrete is poured into the form, after which the product is steaming and freezing.
- Excessive valves on the edges are trimmed, however, due to the pre-stretch, the product turns out to be more stronger and is practically not subject to the burnt of loads.
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The laying of plates of floors is made using the truck crane, raise and unload the plates manually is simply impossible due to their weight. Builders are recommended before laying plates with the help of a car crane to make sure that all the walls around the perimeter of the house under construction are adjusted using a level.
Otherwise, you will come across a mass of problems with the further interior decoration of the walls, gender and ceiling.
In general, plates of overlaps are divided into three main types:
- hollow;
- ribbed (raw type);
- Curving reinforced concrete plates.
There are several classifications of floor slabs, depending on the thickness of the plate, the presence, absence and placement on the surface of the void, and the type of plate support on the carrier design. PC abbreviation means that in front of you is a round-standstop.
Two digits after labeling denote the length of the entire plate in decimeters. Please note that in reality, the stove is usually two millimeters shorter than the named numbers.
Two more marking numbers are the width of this stove. Here, the error in the measurements of 10 millimeters is allowed.
Finally, the latter digit is denoted by the bearing capacity of the plate.
Your choice will depend on what purpose you are haunting. For the installation of overlaps of a private house, plates with voids of round or oval shape are fully suitable.
How to work with hollow plates
First of all, the correct transportation, loading and storage of the plates is important. If they were produced with violations of existing technologies, you will get a cracked or awesome slab, to work with which it will be impossible.
Transport plates on cargo cars. Ideally, if the transportation time coincides with the time of laying plates. Then you can "take a crane" with a crane right from the car, which practically eliminates the likelihood that the stove will be broken due to improper unloading.
- Plate of overlaps require special storage: between folded plates are laid along the edges of wooden bars.
- Particular attention should be paid to the lower plate and its protection against contact with the ground. If a long-term storage of folded plates is planned, the lower base must be made high.
- If the bottom stove in the stack touches due to the sedimentation of the base of the middle of the earth, it will certainly burst. The rest of the plates are also filled behind it.
- Wooden pads must be over the other vertically.
- The height of the stack should not exceed two and a half meters. This is approximately 10 plates in the stack.
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If you are planning to mount the plate, even if it cracked, it is worth trying to reduce the load to the place where the crack was formed. If the damage is too large, it is better not to use such a material in construction, or to cut the stove by making it a short one.