Concrete is an artificial stone-like material, which consists of a hardened mixture, which includes: binder aggregates, sealers and necessary additives. Until the mixture of the above materials hardens, it is called a concrete mix. Almost all construction industries widely use concrete mixed from cement binders in large volumes.
The total cost of material costs that are consumed for capital construction, concrete and reinforced concrete structures occupy the first place among all building materials. By the way, it will not be superfluous to find out the prices for entrance doors, you will need them.
The predominance of concrete in the construction industry explains the availability and large reserves of sand, crushed stone and gravel, about 80% of the total volume of concrete. It is also possible to give the concrete mass all kinds of properties and the ability to form structures of arbitrary configurations. Increased durability and reliability if the composition and structure of the concrete during its operation is consistent.
The classification of concrete is divided into the following features:
main purpose,
type of binder,
kind of placeholders,
structure,
average density.
According to their main purpose, they are structural and special.