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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



 Informatization  construction  and  housing  and  communal  services

Information and knowledge contained in it, and not the energy was the main factor determining the sustainable socio-economic development and welfare of the population.
   The intensive use of information technology in various spheres of life has significantly changed the idea of ​​the place and the role of media in modern society. Manifests itself more clearly the new economic category - national information resources that are becoming one of the most important factors in the development of post-industrial world.
   Effectiveness of scientific activity in the construction industry to a great extent determined by the possibility of access to scientific and technical information. Development of separation processes of scientific work has led to a sharp intensification of information exchange, transformed scientific information activities in one of the most important elements of scientific infrastructure.
   Science and technology in the building can not develop fully without foreign experience. However, the reduction (about 10 times) the income of Russian foreign scientific and technical information has led to the fact that our scientists have virtually no opportunity to monitor the current state of knowledge in their fields, contacts with foreign colleagues are virtually absent. Prestige domestic science largely conquered and strengthened through reporting and participation of Russian specialists in international conferences. The resulting information vacuum leads to the fact that the creation of Russian institutes world-class development will be in the near future impossible.
   The existing system of information support of science is in an extremely difficult situation, scientific and technical library construction enterprises lost income of foreign publications, dramatically reduced the number of national scientific publications.
   In order to create conditions for the most effective use of resources and building complex of closest approach of economic, scientific, technical, regulatory and legal information to the participants of the investment and construction activities of Russian State Construction Committee adopted a resolution on the establishment of the Joint Information System in the construction sector (SICS).
   The acceptance of emergency financial and organizational measures to form a Joint Information System in a building complex with the use of modern information technology in accordance with the decision of the State Construction Committee of Russia, as well as the deployment of information and analytical work in the regions with the use of modern information and communication tools.
   State Construction Committee of Russia jointly with stakeholders investment-building complex and housing and communal services is advisable to compile proposals for the creation of information-analytical systems for the development of programs for sustainable development of the regions and territories of the Russian Federation on the basis of Internet / Intranet-technologies, as well as to form the Coordinating Council on the formation and manual SICS.
   Combining existing information public and corporate information subsystems should be implemented on a voluntary basis and on the basis of association in the interest of the building complex, taking into account the interests of each member of such an association.
   Should fully support new forms of scientific and managerial activities using modern information technology - e-mail, remote database access, teleconferencing, computer experiments with remote and distributed computing resources. This will create new conditions for restructuring scientific organizations, improving the methodology itself and technology research and development.
   Necessary to support the initiatives of the use of information systems building complex regions for the pilot treatment principles of interaction databases and data banks in a single information space "State Building Russia - regions."
   Introduction of new information technologies will establish an ongoing monitoring of the state of scientific and technical capacity of the construction industry, including such aspects as statistics of science and innovation, building science research personnel, R & D funds, material and technical base of scientific research organizations, restructuring of research organizations, science funding, integration of higher education and science, evaluation of science reform, both at the federal and at the sectoral and regional levels.
   Necessary to provide a special package of measures to support the leading news organizations and publications in the field of construction, architecture, urban planning and housing and communal services. When realization of scientific information policy in the construction industry, the focus should be given to the creation of telecommunications infrastructure for the exchange of information, support for existing information networks and ensure their compatibility with global networks, access to the world of Russian scientists wealth of scientific knowledge.