The construction is constantly being improved, new materials are constantly appearing, which allow us to build even more and higher. Previously, all houses were built only of wood or brick, but now steel and concrete rule the ball. Reinforced concrete, in the truest sense of the word, has changed the face of today's world, our environment. Cities became taller, and rivers began to be crossed by huge bridges, which could not even have been dreamed of some 100 years ago. All this resembles a real revolution, and reinforced concrete, having come to power, unlike many, has been holding it for a huge number of years, and there is no end in sight to his journey.

Reinforced concrete structures are erected by installing a frame, which consists of steel reinforcement, and pouring it with concrete. The resulting structure has the strength of stone and the flexibility of steel, which means that most impacts simply cannot have a special effect on it. But how does concrete form such an even shape around the steel skeleton, which is necessary for the construction of structures? And then they pour it into a special mold called a formwork. This element forms a shape around the steel frame that serves as a limiter for liquid concrete until it hardens and becomes solid, then it is removed and a finished reinforced concrete structure is obtained.

As a rule, the formwork structure consists of metal or wood, and is divided into several families that are used in certain stages of the construction process.

1. Wall-mounted, designed for the construction of horizontal structures

2. Wall, designed for the construction of vertical structures

3. Shuttering structure, which is designed for the construction of rounded structures

4. Wall formwork structure, operating on a sliding principle

In large-scale construction, as a rule, shield formwork is used, which consists of shields with a height of 3,000 millimeters. The materials from which these shields are made are selected based on the amount of concrete mix being poured, and therefore the pressure on the structure. Naturally, the material is also chosen for economic reasons. Such shields, made of the most durable materials used for these purposes, can withstand from 100 to 1000 concrete pours, which allows them to be used for a long period of time.

The formwork can be either removable or non-removable. As a rule, removable wooden formwork structures are not reused, since wooden boards, after they are removed, are damaged so much that it is no longer possible to reuse them. A non–removable formwork structure is also an element of the exterior wall of a building, and sometimes its decorative decoration. It can be made of a wide variety of materials. In private construction, a formwork structure is sometimes used, which consists of two masonry bricks, in the gap between which concrete is poured. Such a wall is characterized by the highest strength and durability, since the bricks, over time, do not fall out of the masonry, supported by a concrete core. But such a wall will be very heavy, which means that you will need a very solid foundation, which, of course, will cost you a pretty penny. Sex videoer https://www.tubev.sex/?hl=nb .