The production of building materials is a high -tech process in which it is necessary to take into account many factors and observe many requirements that can significantly affect the quality of the final product. One of the most demanding areas of production of building materials is the production of a border.
In the production of the border, not only production technology, but also the quality of the starting raw materials is crucial. The concrete mixture used in the production of borders, as well as in the production of building materials of other types, consists of several main components. Three main components of the mixture for the production of borders are water, a connecting element and fillers.
In addition, in the production of building materials and borders, some additional types of additives are also used – for example, plasticizers that improve the plastic properties of concrete, which makes it possible to fill the formwork of a more complex shape without the emergence of voids.
The main connecting component of the concrete mixture for the production of building materials is usually cement. As for fillers, there is a much greater variety here. In the production of the border, the filler most often acts fine mixtures, for example, washed sifted sand.
However, for the manufacture of concrete of other varieties, materials can be used with a larger fraction – up to crushed stone. The coarse filler makes concrete more durable, but it also significantly increases its weight and does not always positively affect such an important characteristic as density.
The most important characteristic of the concrete mixture of almost any type is mechanical strength. It is natural that this indicator is often determining the service life and durability of the concrete product, especially when it is subjected to significant loads and mechanical effects. The mechanical strength of concrete is most often defined as compression strength – this type of mechanical effect is most often subjected to concrete products and structures.
However, in the climatic conditions of our state, such an indicator of concrete as frost resistance is no less important – the ability of the product to withstand repeatedly repeated cycles of freezing and defrosting without a significant loss of operational characteristics.