Difficult  work  but  they  can  be  solved
  ► Materials
  ► Equipments
  ► Tehnologies
  ► Information
  ► Contact us
  ► Home

 Site Search




 Information for builders

 The new articles

Protect the surface of the concrete floor
To protect the concrete floor, which is operated in the normal mode, or is subject to wear in areas with high traffic, there are several ways to protect the surface.
   Comparable ways: their cost, appearance and ability to perform the task to protect.
   In this article, we consider three ways to finish and protect the floor. Each of them has its advantages and disadvantages.
   Thin fil...

Finishing compositions based on water glass. Part 3
When used as part of exhaustion moderator comes coagulation and solidification of liquid glass. However, due to the presence in the composition of Portland cement with a finishing time is an increase strength of the coating due to hydration of cement minerals. Thus from colloids formed during the coagulation liquid glass are actively assigned to the water for hydration of cement, a porous media formed tumors filled Portland cement, which leads to...

Finishing compositions based on water glass. Part 2
Studies in Berlin Institute Federal institute for Materials Research and Testing, show that the average density of 1730 kg/m3 brick large proportion of pores having a size in excess of 1 micron is more than 90% [3] and they are responsible for the increased migration of fluids through brickwork.
   Most fully meet these requirements structure obtained by coagulation and water-soluble potassium silicate forming silica with a high sp...

Modernization and repair of self-propelled machines. (3)
Hardening electrolysis BORATING hinge pins and bushings mates working equipment hydraulic excavators EO-4121 (EA-4321) gives an increase in wear resistance 4-6 times compared to the bulk quenching details.
   Taking into account the high wear resistance of brazed blades, hardened sintered alloys (see Table 1), are recommended for carbide knives dumps graders DZ-122 and RS-98, combined machine E-405 based on KAMAZ, for front dumps a t...

Specialized exhibition Architecture. Construction (END)
Mari-lime brick and gas silicate blocks
   JSC "MZSK" produces silicate brick and a half, color (white, yellow, black, red, blue, green, brown).
   For the production of silica brick used quartz sand from quarries near the plant. Limestone enters the factory with Dobryatinskogo deposit Vladimir region. Silicate brick (Table 1) is used for masonry exterior and interior walls of buildings and structures, as well as ...

Geophysical processes primers and security. Part 5
In the center of Moscow can distinguish vertical structure comprising a crashing into the Earth`s crust magma elongated cylinder (Fig. 2) [5]. In the center section marked lack of extensive vertical zone converted waves ("blind spot"), going from the depths of 70-80 km to 7.5 km. Such "blind spots" are characteristic of the earth`s crust with the introduction of monolithic dense mantle rocks such as gabbro, diabase, etc. In such a zone Tashkent e...

Finishing compositions based on water glass. Part 1
The quality of the decoration of buildings for new construction and reconstruction depend not only on their aesthetic, but also the operational parameters, as good-quality finish - a guarantee of durable service basic designs, long maintenance-free operation, the costs for maintenance and care. Traditional binders used for the production of finishing compositions, liquid glass is widely used, but it has some drawback: coatings based on it gaining...

On possible amendments to the equation Griffiths
Griffith presented a picture of destruction allowed to formulate the problem of determining conditions of the beginning of crack propagation and find its general solution.
   As seen from the above schemes, in the process of crack propagation material directly adjacent to it "coasts" unloaded relaxes. This means that the stress and strain it decreases, and the elastic energy stored earlier in this area of ​​the body is re...

Construction skyscrapers - the requirements of modernity. Part 4
The program is a high-rise building in Moscow
   The project is now a high-rise building in Moscow is implemented in two main areas: the construction of business center "Moscow City" and implementation of the program of the Government of Moscow "New Ring of Russia."
   1. Moscow international business center "Moscow - City"
   The project includes the construction of buildings on the territory of abou...

Degree project - beginning of the road. (3)
Given the great diversity of subject matter and content of diplomas in various specialties, the jury is faced with great difficulties in determining the winners - "Who better violinist or a dancer?". Nevertheless, often based on emotional perception and can estimate the relevance and novelty, and the author`s contribution to the thesis project or job. Absolute winners in recent years have been graduates of Rostov CSO GASU St. Petersburg, Nizhny N...


 Information for builders



 Difficult  work  but  they  can  be  solved

In the olden days it was decided triumphantly report the success of our industry to the Day of the builder, while glossing over its mistakes and problems. And today we have successes, but there are considerable difficulties. But if we "forget" about them today to tell the truth, then tomorrow progress in this important matter for the state - providing housing for Russian citizens - just stop.
   Facts and Figures
   Last year, building organizations of all forms of ownership in Russia was built about 41 million square feet. meters of housing, while in the nineteenth annual housing construction was only
   36.5 million square meters. meters. Thus, the national average of new housing per capita proved to 0.28 m. meter. However, it is still less than 50% from its late 80s, when introduced annually more than 80 million square feet. meters. And this figure, according to our calculations, we can reach only in 2015.
   It should be noted that the provision of housing for the Russians in two to three times lower than in developed countries. More than 62% of the buildings in our country was commissioned in the 60-70s of the last century, and in the mid 90s began precipitous rise of housing worn. In Russia, one person has about 20 square meters of housing, mostly old and deplorable. At the same time in Germany, the prevalence of decent housing is
   35 m. meters, and in the United States - 70.
   Today, there is, unfortunately, a negative trend to a decrease in input housing for low-income citizens in the public sector. The year before, its share in the Russian average was 6.9%. Takes place and a sharp reduction in corporate housing construction by industrial enterprises, organizations and financial-industrial groups.
   However, since 2001, an increase in the annual volume of individual housing construction. Thus, in the year before the population at their own expense and credits built 15.2 million square meters. meters of housing area, which accounted for 41.8% of the total input of housing. Last year, the growth of individual construction was 106.5%, and this
   16,144,000 square meters. meters.
   Materials, equipment and technologies
   Expansion of production of wall materials carried by creating production lines cellular foam and aerated concrete autoclave and autoclave curing, cement-sand brick and plaster pazogrebnevyh partition plates. Improved range of roofing and insulation materials. Significantly increased the share of modern high-performance materials (bitumen-polymer, polymer, etc.) having higher - 5-7 times the durability and reliability. It allows to increase the overhaul cycle operation to 15-20 years and reduce costs by 3-5 times. Building complex of Russia in the near future will require a significant amount of high-quality glass, due to the necessity of crowding out the windows of the "old" structures with simultaneous replacement and ground glass for flat, more robust and durable float glass.
   To be continued.