Improvements  and  environment  in  urban  environments  in  the  building  highly  densified.  Part  1
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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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 Improvements  and  environment  in  urban  environments  in  the  building  highly  densified.  Part  1

Urbanism in Moscow makes another call habitat typing in Rank High achieving "the construction of tall buildings in cramped conditions" in the old building with its overcrowded and further deterioration of the environmental situation.
   Along with the problem solved difficulties in the construction of these conditions are generated and new challenges for security and the evacuation of people from high-rise building on a "mini-Yard" area and the creation of recreational yard areas. Under the conditions of overcrowded buildings certainly need to provide ventilation (ventilation), sun exposure and compliance with other sanitation. Even harder to ensure norms developed research institutes and the general plan of Moscow PI (BCH-2-85), green areas - at least 6 m2 per person to ensure neutralization of air and soil pollution in overcrowded urban areas.
   Healthy life support air environment can be created by one adult tree for 3 people. Clearly, what`s good for Japan, where the development of each detsikvadrata - a victory for Moscow is far from optimal, and for highly densified populous area - is simply unacceptable. Obvious advantages of building high-rise buildings in the old overcrowded urban areas: savings on all types of eyeliner communications, infrastructure, etc. But what to do with the norms of insolation, air exchange and, finally, planting, without which we can not talk not only about providing a comfortable environment habitat, but also to achieve the minimum standard health indicators - because housing activity is maintained as a significant deforestation in Moscow, and in the vicinity of Moscow.
   Construction projects of high-rise buildings in cramped conditions implemented on the street. Tukhachevsky, ow. 53-57, 12; Federated avenue that, ow. 24-26, 1, etc., where the cost savings achieved by performing construction by reducing the length of their erection by 4-6%. However, there were not evaluated and deteriorating sanitary conditions due to condensation building and reduce the possibility of landing on the regulations to implement the green areas (see BCH-2-85) at the rate of 7.3 m2 per person plantations.
   The economic effect by reducing the construction time in the construction of apartment houses in cramped conditions without the use of tower cranes can be seen in examples of objects that Federated Ave, ow. 24-26 (number of sections - 6, floors 12-16, the total area of ​​21 795 m2 apartment, approximately 500-600 residents, the construction period of 11 months, instead of the standard - 18 mos.) St. Tukhachevsky, ow. 53-57 (number of sections - 5, 17 floors, the total area of ​​29399 m2 apartments, approximately 700-800 residents, the construction period of 13 months instead of the standard - 20 mo.).
   But there are other illiquid environmental quality problem. Admittedly, at sites where construction of multi-storey buildings is carried out in cramped conditions denser residential - streets, roads, sidewalks, otmostki accepted conditions of minimum width, so it is not necessary to talk about the regulatory areas for reforestation. And the yards denser residential areas, where high-rise buildings erected in cramped conditions, planting and landscaping require a special approach. Design solutions for planting should not be applied from the extensive and intensive approach.
   To be continued.