A large selection of different types of foundations, made by different methods, allows you to choose the most suitable option not only for the soil, but also based on the project of the house.
For suburban construction, they often use a strip or column foundation. But the option of using piles is no less interesting, especially if the site has a slope. When building in a city where there is a very dense development, the foundation is bored - the most optimal solution. The technology of its manufacture allows you to build a house without causing trouble to the nearby buildings. The main idea of ββthis method is that the pile does not go deep into the soil, but rather βgrowsβ out of the ground (due to filling).
The bored foundation can be performed in several ways. After digging or drilling a well, install a pipe into it (or make a removable formwork). As the hole is filled, all unnecessary elements can be removed, but sometimes they are left to give additional structural strength. For better concrete compaction, a special drill is used that creates vibration (and the composition lays more tightly).
They begin to fill the foundation of the bored with the design of the pillow. It can be made of crushed stone, sand or concrete mix, having previously rammed them. Then comes the filling of the well with basic material. It can be just a few layers of concrete or concrete combined with stone. Cobblestone, sandstone or limestone are suitable here, the main thing is that it be smooth and durable. Otherwise, it is called a rubble stone. To increase the strength of a
bored pile , reinforcement can be used, which then will have to be connected into a single structure using a grillage.
The width of the foundation, made on the basis of bored piles, depends primarily on the thickness of the wall of the house. Frame buildings do not require large sizes, since the walls are light and not too thick. The width of the foundation in this embodiment may correspond to the size of the wall. For a house made of timber, the foundation should be 20-40 mm larger to distribute the load more evenly. Therefore, it is the material from which the house is built that determines the width of any foundation except the slab. There, the stove is poured in to the size of the house.
When building a house, it is necessary to pay attention to the quality of the material used. Cement for the foundation should be selected based on the strength characteristics. These indicators are influenced by various impurities that improve the quality of the resulting material. But if this is relevant for building a house, then you can take lower quality cement to the garage (and, especially, the barn).
It is better to fill the bored foundation with quick-hardening cement, but dilute it in small portions. Prepare each subsequent fill after tamping the previous layer. When buying cement, keep in mind that it is not always possible to accurately observe the proportions of all incoming components. At the same time, sand should also be of a suitable consistency and high quality.
Putting all these components together, you can get a solid foundation, and, therefore, confidence that the house will last a long time.