Problems  and  prospects  mechanization  finishing  work.  Part  2
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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...


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 Problems  and  prospects  mechanization  finishing  work.  Part  2

Necessary to form a new salary structure. If introduce mechanical method, which allows you to increase productivity up to 6 times, have at the same time raise the salary. Accommodations at this not be cheaper. However, with the growth of labor productivity, as a rule, wage increases should lag somewhat behind the output volume. Optimal growth is 20-30%. While reducing the total cost per square meter. Then it will be effective.
   In addition there are a number of technological equipment present on the Russian market, and a large price range for it. Not every company has a knowledgeable staff that can make the right choice of equipment.
   According to AP Pustovgar, the prospects of using this technology are high-quality training to work with complex machines for mechanized method finishes, leasing and renting of expensive equipment, the use of silo equipment and new binders.
   Group chief mechanized finishing Russian company "Prospectors" SV Avramov spoke about the lack of regulatory frameworks, among which should be national standards for dry mixtures. There is no common understanding of the technology works, nor estimate standards. Development of national standards is already underway, but an attempt to create a single document routing for the market failed.
   Problems certainly exist. But no matter what the use of mechanized dry mixes finds more and more followers.
   The technology of dry mixes for mechanized production used in the regions of Russia. On the experience of implementing the full range of plastering mechanization in the Northwest region of the chief of the technical department "Knauf Marketing St. Petersburg" SA Tomarev.
   The appearance of the modified dry mixtures and equipment, coupled with the capital developers intensified the situation in the construction market in Perm. Increased competition has forced builders look Permian backup capabilities. Experience in Perm shared Chairman Board of Directors of "Allegro" PV Tokarev.
   Despite the successful experience of these regions, Russian experts believe that it is necessary to use the European experience, because in Europe, 70% of the finishing works mechanized. It is shown by the example of the company "Knauf PFT Director of Public Relations LM Elk. It is also important to revive domestic experience, since the mid-80s in the USSR 80% finishing works were mechanized.
   As a result, the roundtable participants agreed on the fact that for the application of mechanized dry mixes - the future.