building a house, we want to save not only money, but also time. Knowing, that overlap is one of the most important things, which affects the design of the house, don't skimp on it. How to strike a balance between strength and ease of installation? Answer: use floor slabs.
What is it?
Precast floor slabs are made of concrete class C20/25 or higher. What determines the type of concrete used? so here, this is influenced by span and load. Typical Solution, which is used in such ceilings, plates that have round, empty channels. This makes these items much lighter..
What are the dimensions of these plates?? Often they are made to order., adapting to the project of the object. However, their average thickness 22 – 26 cm. When it comes to length, it can be products even more 7 m. Width: 90 – 160 cm.
What does floor slab installation look like??
Unfortunately, because, that the floor slabs are huge and very heavy, heavy equipment must be used to install them. This is the biggest disadvantage of this type of solution.. The exception is lightweight floor slabs PNO, we can handle their installation with a conventional crane-manipulator.
The principle of installation is simple, prefabricated elements are laid on a flat surface, previously applied mortar. The space between the slabs is filled with concrete, to increase the strength of the coating. For step-by-step installation instructions for PCB, see the video for this article:
Advantages and disadvantages of floor slabs
The disadvantages have already been mentioned. Actually there are not many, compared to the benefits. Therefore, there is nothing strange that this type of ceiling is often used in modern construction.. Just the main advantage is the possibility of quick installation and almost immediately you can continue construction work after laying the plates. The smooth surface of semi-finished products deserves praise. This greatly reduces finishing time., eg, screeding inside the building.
Ceilings from such panels do not require any formwork, no mounting supports and can be used directly after laying. But ceiling installation requires very good organization.: the best thing, if the crane lifts the slabs immediately from the truck, then all actions, related to the implementation of the overlap, last only a few hours.
Benefits:
- execution speed;
- Possibility of loading immediately after laying;
- good sound insulation;
- Smooth surface, facilitating finishing work;
- the possibility of using channels in slabs for engineering communications.
disadvantages:
- accessibility issues (few companies are engaged in the production of semi-finished products);
- installation requiring heavy equipment.