Foreign experience of resource saving technologies

In foreign industrial and civil construction be-tone and concrete structures firmly occupy the leading position of the comparison with other materials and designs. Heads-tion, to which directed the attention and efforts of companies - to provide some high-quality manufactured and erected structures. Only in the light of these requirements, they develop technological solutions of the, least-cost labor, energy and materials. Foreign savings have in any case should not damage the quality and durability. Special attention is paid to the quality of cement and aggregates.

In the U.S., for the preparation of concrete and mortar are widely used expanding cements allow us to obtain high-quality products, reliable and waterproof. Curiously, the basis for the development of the cement formed our research scientists tion, Professor VV Mikhailov, who suggested such binders before the war (in domestic practice, they have not found the application until the 60's, when it became aware of their production in the United States). Some of these cements are known as "M" after the first letter of the name V. Mikhailov.

Typically, companies manufacturing cement, guarantees the high quality and stability of some staff. Thus, in France on the bags of cement indicates not only the price, but also the composition and all the necessary properties. To avoid confusion and accidents in the workplace on the bags of cement placed colored stamp schy-certify their contents (Portland, Rapid cement, etc.). Each type of cement is marked in different colors (red, blue, green, etc.). This eliminates errors that can lead to marriage structures.

Special attention is paid to foreign chemical additives. In the largest volume-produced supplements superplasticizers (shallow-ment, etc.). By their action, they are close to our SUPERPLAST-tomers-3, but the cost is several times higher. However, to obtain the required mobility of the concrete mix, in addition superplas-tifikatora, need more graded aggregates, a good topic dispensing system components and strictly maintain the mixture. On the concrete mixing plant sites in Finland, France and Germany, as well as in other countries of the computer system. The operator, being in a specially equipped room, completely isolated from the concrete mixing department has on-boron punch cards designed by no less than 50 species be-ton mixtures. As soon as the car went over the next mixer, Vod-Tel phone tells the operator the data: what mix and how much he needed, the name of the company, customer, etc. The operator enters the required data into the computer, then automatically included dispensers and faucets. Auto Mixer without delay put under load. After issuing the concrete operator in the exhaust pulls the driver rolled-up account, in which the computer printed the mix, concrete grade, quantity and cost. Usually the whole operation takes less than five minutes.

Economical use of overseas resources is subject to the entire organization of construction, starting with a concrete and mortar buildings and methods of energy-saving technologies applied in international practice, very practical, and cost of material resources, and provide a high quality design, functions and products.

Дата добавления: 2015-08-27