Revitalization  of  public  science  and  technology  policy  in  the  construction  and  housing  sector.  materials  and  products  for  building  a  new  generation
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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.  materials  and  products  for  building  a  new  generation

1. Composition
   Creating materials and products for a new generation of buildings and structural design technology include the following main areas:
   Development of a new generation of highly efficient and competitive building materials and products, including polymeric materials and composites for construction;
   use of recycled and non-traditional feedstocks for the production of building materials;
   re-profiling of panel construction;
   reduction of energy, material consumption of building materials, products and structures;
   Development of flexible automated manufacturing technology building designs and products, allows us to produce a wide range of products in accordance with customer requirements;
   Creation of combined building systems of effective materials;
   ensuring environmental safety of building materials and their production technologies.
   2. Purpose, basic functional parameters
   The proposed technologies allow for the transition of building and construction industry, in particular, to a new, higher level of resource and energy saving. These technologies will provide the basic competitiveness of domestic materials and construction equipment in the domestic and foreign market. Without the introduction of advanced technology can not be ensured sustainable development of the construction industry and construction in general.
   The technologies are possible to solve construction problems by dramatically reducing the cost of 1 m2 of living space, or 1 m3 building. Reduction of environmental pressure on many industrial areas due to extensive use of industrial wastes, a sharp decline in metal production by 1.5-3 times, increase productivity by 1.5-2 times due to the use of cost of materials, process automation, the widespread use of cheap local materials .
   3. Sphere of application
   The technologies aimed at using high-performance materials in the construction of houses in various architectural and building systems (low-rise, frame-monolithic, precast-monolithic, prefabrication, monolithic), industrial buildings and structures, roads, utility facilities, public buildings, as well as for repair and restoration work.
   Technology of construction, reconstruction and modernization of buildings and structures can be successfully used in construction, repair and renovation of residential, public and industrial buildings and structures, providing a high standard of construction, its quality and durability.
   Creation of specialized construction equipment and robotic systems for special applications provide high-quality and highly efficient performance of work in the aftermath of emergencies, particularly when clearing blockages caused by the explosion and sloughing of buildings and structures.
   4. Basis for Selection
   Economic importance of the proposed technologies is determined by the following factors:
   provision of affordable and quality housing;
   construction of modern public with improved durability, industrial buildings and structures, roads, civil engineering;
   development of local material and production infrastructure;
   saturation of the domestic construction market products;
   creation of new jobs in construction;
   attract private investors to the domestic construction market.
   5. Status and trends of development
   Developed advanced domestic technology aimed at solving problems before construction. The proposed technology is expected in the future to improve the view of the world and domestic achievements in building science, technology and practice. Need to use better equipment, introduce automation into the process. Particular attention should be paid to adapt new technologies to specific local conditions weatherization Russia.
   To be continued