Concrete stop: purpose and device

The operation of engineering structures and structures determines the characteristics of bearing and strength capabilities. From how correctly the engineers have calculated the load, depends on the durability of the object. In this case, it is not always possible to implement the laying of the bearing capacity directly into the target structure. In such cases, the use of auxiliary devices is inevitable. These include a concrete stop, which has a wide range of uses. This is a simple construction in the device, which does not require special expenses, but at the same time efficiently copes with its tasks.

Purpose of the stop

The main function of the stops is to insure the construction or (which happens more often) of its individual section from destruction during operation. And the destruction is not supposed to be external, but from internal pressure. A classic example is a water pipe, which is laid not along the ground contour, but outside - on the weight. Accordingly, between the sites of fixation there is a risk of obtaining elementary deformations, which can arise under the action of their own mass. The holding unit, in turn, takes on the loads and prevents unpleasant processes. The same principle applies to concrete stops in the wells, but other functional tasks are added to them. The fact is that well rings with excess water pressure wear out, losing their density. Special blocks of stops can compensate for the load, prolonging the service life of the object. As for the functional aspect, in some facilities the emphasis is a kind of object in the logistical maintenance of a particular design, although most often their utility in this respect is insignificant.

Device and construction

When considering the arrangement of blocks, it is important to take into account two aspects: the form-factor of the object and the particular composition for the formation of the solution. In the form of the support can have different designs. Traditional elements are executed in the form of rectangles, squares, etc. But the correct forms are rare. Most often, the models are realized with certain notches, so that during the installation the optimal entry of the element into the composition of the structure is ensured. Also the device of concrete stops can provide for the inclusion of metal hooks, reinforcing bars and other auxiliary additions. Their presence can be associated with the provision of technological tasks during operation, and with the elementary strengthening of the structural basis. The composition may have different components, but most often their set is represented by traditional inclusions - from cement with sand to possible fillers in the form of stone crumbs.

Characteristics

Technical parameters vary depending on the specific area of operation. For example, high-strength concrete blocks of standard rectangular shape can have the following parameters: 50 cm in height, 40 cm in width and 150 cm in length. Conversely, the emphasis in terms of increasing the size can be made in height or width - again, everything depends on the installation conditions and structural requirements. In addition to technical characteristics, it is important to note the performance characteristics that the concrete stop block on the site of use should have. First of all, it is wear resistance and strength. The material of the block should not be destroyed, abraded and crumbled. Also, the resistance of concrete to external influences is important. Technologists aspire to confer the compositions with frost and moisture resistance. Such qualities allow using stops in different conditions on the street with almost no restrictions. Additional properties are achieved by including special plasticizers in the concrete.

Types of stops

The classification of blocks is based on the division by structural features. For example, the UG brand elements have a device designed to support horizontal turns that are at an angle of 10 to 90 degrees. Distributed and the model of UN, the features of which include the presence of convexity in the lower side. Such products are guided by the support of vertical sewer corners. Also find similar concrete stops on the water pipe, located at angles ranging from 35 to 90 degrees. Practically, the use of so-called anchor blocks. These are the stops in which the anchor elements are provided. The convexity of the structure is directed upwards. Such models are often used on pipelines - for example, at branch points, at bends with couplings or bell joints.

How to build a concrete stop?

Direct manufacturing of the base is made in the factory by means of special shapes and matrices. A separate question is how the installation is already in place. The installation technologies depend on the conditions of use and the method of structural fitting of the element for the facility under maintenance. For example, the support of the pipe section does not need additional fixators at all, since it is possible to reliably strengthen the element at the base. If it is necessary to build a concrete stop in a ditch, so that it does not move during operation, then you can not do without additional support. It is advisable to use ramming mixtures of soil, sand filler and small gravel. In an extreme case, for strengthening, it is necessary to prepare a foundation base for the basis.

How to choose an emphasis from concrete?

To rely on the choice follows on the basic technical and structural characteristics of the element. They must meet the requirements for supporting the target in terms of operational reliability. But this is only part of the case. It is very important to take into account the quality of a specific block. Correctly made material does not have cracks, deep depressions and chips. In addition, it is not necessary to purchase a concrete stop with exposed bare reinforcement. Metal, protruding to the surface and not having insulation, will be exposed to corrosive effects. Particular attention is paid to the site that will be in contact with the pipe or other part of the target structure.

Conclusion

Even the installation of a high-quality and suitable block does not guarantee the correct execution of the supporting function. Moreover, with an incorrectly calculated scheme for providing a load-bearing force, the availability of such a device may even be harmful. This happens if the concrete stop is installed on one side of the pipeline and exerts back pressure on the other part of the line, where there is no similar support. In other words, the designer should consider not only the strengthening of the contour at a certain site, but take care of the combined support of the pipeline. Do not forget about the possibility of dismantling the stops in the future, if, for example, you need a general upgrade of the object.