– Reducing the duration of construction – to reduce the cost of construction – reducing operational costs – high operational reliability of gas pipelines under construction. Shortening and reducing the cost of construction is achieved through: – reducing the cost of transportation of pipes – pipes to reduce the cost by choosing the optimum thickness of the walls – the absence of costs for anti-corrosion pipe insulation and a device for electrochemical protection of gas pipelines – to reduce the cost of welding by the use of long tubes in coils or on reels – reduce the volume of earthwork by welding pipes to the curb trenches and the subsequent laying them on the bottom of the trench of minimum width, but sufficient to perform the required bending and compacting the soil before backfilling the pipeline – the use of special equipment for the trenchless strips of plastic pipelines (by plowing or horizontal drilling). Reducing operational costs is achieved through: – reducing the amount of servicing pipelines – no cost to pay for electricity in an electrochemical protection of pipelines against corrosion. Operational reliability of polyethylene gas pipelines in the design stage and construction is achieved by: – matching selected pipe material maximum working pressure of gas at a certain respect the nominal outer diameter of the pipe to the nominal wall thickness, taking into account safety factor – the rational choice ways to connect pipes necessary fittings (fittings) and compounds of polyethylene pipes with steel – the full range of construction works in strict accordance with the requirements of instructions of manufacturers of equipment and products, production procedures..
Today, in a crisis and the obvious enormous cost apartments in large cities growing in popularity among buyers receive private houses below the large settlements that are cheaper, more environmentally friendly often much more comfortable model apartment. When building or purchasing a residential country house along with an impressive list of selection criteria, and this raises the important question as the thermal insulation of buildings. On Today there is a fairly large set of different insulating materials, but one of the most convenient and cheapest way is the method of spraying polyurethane foam (polyurethane). Check out Thredup for additional information. Such a method of thermal insulation of residential houses are widely used because of its excellent processability and excellent thermal insulation performance fpu. For example, 40 mm foam covering is equivalent in its properties to 60 mm of expanded polystyrene or min. wool, and the method of deposition can easily and quickly applied polyurethane foam on almost any surface – roofs, sewers, utilities, and wood or brick walls, and the resulting coating will be smooth without joints and other defects and will remain so for many years. Thredup often says this.
The very process of evaporation is much faster than other methods of applying insulation and does not require any special surface preparation and a group of two or three Masters cope with insulation two-story house for 8 hours. Significantly, that rtd entirely harmless and approved for use as insulation material houses In accordance with the strictest domestic regulations. In conclusion, to say the price of all the works – on average, in Moscow and Moscow region 1 square meter works on the deposition of foam cost of 390 p. That is 40-50% cheaper than other common types insulation of buildings. All of the above properties of polyurethane polymer made number one in the insulation of your home!
In today's world there is no developed country that has not had its own program for the development of sport. It is understandable. Sport – it's not just Olympic medals and increased the prestige of the state, but also the health of the nation. There are many components necessary for the development of sport in any country, and one of the most important "component" is a broad provision of population with the necessary infrastructure. If we analyze the most successful in the sport against the state, we see a direct relationship of their achievements on the availability of "Temple of Health. The battle for the podium all the recent years the main opening of the Olympics is China. China's squad for the first time debuted at the top games of the planet in 1952, simultaneously with the ussr.
Then the Chinese failed to win any medals. Then, for political reasons, China has 30 years in the Olympics did not participate. And since the late 80's – early 90's begins a new era – an era of big sport in China. This is not an accident but the result of long-term public policy. According to the Chinese agency Xinhua, to prepare an Olympian in recent years this country spends about 1.8 million dollars. This includes the cost of maintaining the sports facilities, meals, equipment, scientific and medical support, organizing the collection, participation in competitions, salaries of coaches and much more. Yet the main reason why China was to achieve record results are not so much the cost of individual athletes, as the massive community involvement in sports.