Revitalization  of  public  science  and  technology  policy  in  the  construction  and  housing  sector.  Technology  of  housing  and  communal  life  assurance  of  cities
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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...


 Information for builders



 Revitalization  of  public  science  and  technology  policy  in  the  construction  and  housing  sector.  Technology  of  housing  and  communal  life  assurance  of  cities

1. Composition
   Technology of housing and communal life support cities includes the following main areas:
   Develop legislative and regulatory base housing and communal reform;
   ecological urban renewal;
   ensuring sanitary and technological reliability of wastewater treatment plants and drinking water quality, water use optimization;
   treatment and disposal of sewage, industrial, household, storm drains;
   Development of new tools and life-support systems of buildings, resource and energy efficiency, using alternative and renewable energy sources;
   Development, implementation and optimization of the system of housing and communal services of Russian cities.
   2. Purpose, basic functional parameters
   Optimization problems of housing and communal life support cities is a problem at the federal level with the intensification of urbanization, increasing density of urban population (some 70% of the Russian population is urban).
   Increased population density in urban areas requires the solution of tasks to ensure the safety of life of the urban population and quality of life.
   Housing and utilities to ensure viability of cities in these areas is a common condition of the implementation of "Concept of Sustainable Development of the Russian Federation."
   3. Sphere of application
   Technology of housing and communal life support cities, optimized on the basis of safety and quality of life of the population, are applicable to most cities of the Russian Federation with the necessary socio-economic, geological and climatic and environmental parameters of the medium.
   4. Basis for Selection
   General social importance of technology for urban life support cities is determined by:
   provision of housing in accordance with modern standards of quality and comfort;
   absolute ensuring safety of life;
   improved quality of life due to the high level of water treatment, energy conservation, waste management, transport services;
   energy and resource conservation;
   formation of culturally significant urban environment.
   5. Status and trends of development
   Population growth and the general increase in urbanization of the country due to global trends related to scientific and technical progress, with the rural exodus to the cities, the general economic situation in the Russian Federation. Associated with these causes of growth in housing construction (of the cottage to multistory) in the framework of sustainable development is complicated by the demands of providing quality and safe living conditions to modern standards. Compliance with international standards provided housing and communal life support technologies in urban environmental compliance taken and sold architectural solutions and energy and resources.
   To be continued