Improvements  and  environment  in  urban  environments  in  the  building  highly  densified.  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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 Improvements  and  environment  in  urban  environments  in  the  building  highly  densified.  Part  2

Due to the fact that highly densified developments in the construction of multi-storey buildings in cramped conditions, greenbelts have substantially increased human pressure due to increased number of tenants - consumers of oxygen, so it is natural to expect environmental degradation. Landscaping except microenvironment function recovery, creates a special microclimate that attracts birds, promotes biological comfort.
   It is important in this case that were sealed maximum greenery. The entire composition should please the eye, should become fully operational. This should help and general layout and created compositions of trees, shrubs and flower beds, as well as spectacular landscaping elements, small architectural forms, their colors. Landscaping design decisions should be based on intensive gardening (creating a large green mass per unit area). While landing at such facilities need to use those kinds of efficient plants, which in the course of its useful life emit volatile, destroying many bactericides (dysentery and other agents of gastrointestinal diseases), for example, volatile, cherry, ash, juniper do not attract pests, which may be carriers of the infection. Very effective planting arborvitae that has the ability to reduce air pollution by pathogens by 67%. Planted material must have a high survival rate, simple care and high productivity on the absorption of toxic gases and dust removal, ie highly salutary effect the environment.
   Design solutions for landscaping and a particular territory must be taken not only and not so much from the designers and landscapers blagoustroiteley dictated by the principles of architectural and artistic expression and aesthetic design finds, and to a greater extent of the adequacy of the environmental air pollution and climate territory.
   During the life of the plant, some of them have a cleansing (rehabilitative) the impact on the environment, health-improving effect, which is why the landscaping, put on a science-based system, along with thoughtful and intelligent direction landscaping, and can provide, especially in recreational places ( areas), habitat rehabilitation superior.
   On recreational areas, where they remain children of preschool age, it is advisable to grow oaks and junipers, because volatile oak foliage kill dysentery and volatile juniper - agents of gastrointestinal diseases.
   The yards and recreational areas of tuberculosis hospitals and boarding houses, the most effective planting Crimean pine, cypress evergreen, cypress Himalayan, which inhibit the growth of tuberculosis doubled compared with deciduous plants, so the area of ​​rehabilitation sanatoriums and other institutions should prevail pine plantations.
   On the effectiveness of emission of volatile substances of plants grown on 1 hectare, tree species can be arranged in the following sequence: 1) juniper - 30 kg, 2) pine and spruce - 20 kg, 3) hardwoods - 2-3 kg.
   Implementation of an evidence-based systematic approach to landscaping problems fit into the framework of "sustainable development" by greening and intellectualization of the urban environment and, primarily, children`s yard areas and urban recreational areas, which corresponds to the theoretical principles of the doctrine of sustainable development.