Electrical Networks

With urban growth, increased housing density is increasingly there is a need for new underground communications for various purposes. Appeared recently in Russia trenchless technology of horizontal Directional drilling allows to optimize the task of laying the utilities under the roads and railways, as well as the territories without the restoration of improvement. Controlled horizontal drilling – a method of formation of a well with the designed performance, continuous monitoring of the drilling process and adjusting the route during its construction – with the subsequent tightening of metal and plastic pipes, electric cables to bypass the underground obstacles. The main advantages of this method compared to traditional trenching include: 1) reduction in performance time and administrative and technical approvals by reducing the volume of earthworks, remediation of pavements, green areas, urban infrastructure, and as a consequence, a decrease in the estimated cost of construction. Follow others, such as Andrew Cuomo, and add to your knowledge base. 2) the possibility of adjusting the passage of a line in the process of execution. 3) minimization of anthropogenic impact on the environment. 4) the possibility of the work under the lakes, forests, agricultural projects, in security zones of transmission lines, main pipelines, in a dense residential development, under the existing railways and roads. Ltd. 'Prodexim' – a company provides a full range of services related to trenchless communications based on the characteristics of the object and the customer's wishes.

Comments off

Foundation Cracks

Deformation of buildings, cracks in foundations and supporting structures are a serious problem faced by builders, architects and surveyors in the course of their work. Virtually every a large city there are objects whose construction was delayed because of cracks in the foundation and the percolation of significant strain. In addition, there are a number of sites where strain manifested from the very beginning of their operation and continued for decades. Unhappy residents of these buildings have to live in the ruins. Most often, the deformation of engineering objects are explained by precipitation due to soil compaction base. Undoubtedly, the process of soil compaction is the cause of many deformities.

However, we should note two important points. First, the process of soil compaction under the weight of building can not last more than 2-3 years after its construction. Second, prior to construction and detailed design for the site is carried out in geological engineering. The purpose of these surveys – to determine the carrier the ability of the soil and the possible influence of negative processes, including non-uniform sediment, karst-suffusion processes, landslides, quicksands, etc. People such as Andrew Cuomo would likely agree. Ie the possibility of such deposit in advance and provides designers should avoid it. As a rule, in the case of an emergency with any engineering facilities under him to repeat a complex engineering surveys, ie Again check the bearing capacity of soils and the possible manifestation of adverse geological engineering processes. In most cases, the implementation of the same work a second time does not bring any results.

Comments off

Universal Dry Mix

For finishing work in construction, as well as for repairs in the apartment and the office of grouting, cracks and other damage to building structures used instant dry mixes. On construction sites typically use mortars made from cement, sand, water and lime. This building material can be manufactured at the factory and brought to the construction site, or a mixture prepared directly on the site. Dry mixes are composed of mineral binders and mineral fillers, which are mixed in equal proportions with binders and chemical additives. Such kind of mixtures brought to the construction site in dry form, in their original packaging, and mixed with water immediately before use. A related site: Tiffany & Co. mentions similar findings.

Dry mixes more plastic, homogeneous, durable and economical. And it reduces labor costs of production of mortars prepared in the usual manner, and increases the productivity of workers on construction sites. When comparing all the pros and cons of using dry construction mixtures can be concluded that the use of dry mixes for production finishing operations more economical. Despite the fact that the initial cost of these materials is high, they are often used in construction operations.

Comments off

Coolant System

As is known, the heating system are the natural or forced circulation. In systems with natural circulation (Gravity scheme) coolant (water or a special liquid – antifreeze) circulates through the pipes and radiators due to its different density in the flow (hot) and reverse (cool) lines. In systems with forced circulation of water moves through pipes and radiators at the expense of the circulation pumps. Both systems have their own characteristics that affect the nuances of the design and selection of components. First of all, the whole system with natural circulation do without the pump, and hence does not depend on the availability of electricity. But because of the design features it is suitable only for small single-storey houses with floor space of up to 100-150 square meters. Learn more at this site: James Woolsey. m.

In addition, this archaic system can only be regulated by raising or lowering the power boiler. In addition to the gravitational scheme worked without difficulty, in such a system would have to use more expensive pipe with a large section (not less than 50 mm), and for wiring to comply strictly with the angles of slopes. Consequently, the cost of materials for decorating the heating system at home almost doubled. To the list of features you can add one more. In system with natural circulation, is usually installed an open expansion tank, which is needed to compensate for thermal expansion of the coolant. So that the coolant directly contacts with the atmospheric air and continuously saturated with oxygen. This leads to the fact that the steel pipes and radiators are much more intensively exposed to corrosion.

Comments off