Public  control  -  the  way  to  improve  safety  urban  development  activities  (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...


 Information for builders



 Public  control  -  the  way  to  improve  safety  urban  development  activities  (1)

Article 42 of the Russian Constitution defines the rights of every citizen to a healthy environment and reliable information about its condition. This also applies to the natural environment, and the environment as a result of an artificially created human construction activities. Urban development - to state control - is a potentially hazardous activity, as violations of the mandatory requirements may occur serious irreversible consequences, affecting large areas and masses of people.
   One of the main problems in the administrative and legal regulation of urban development is the lack of a coherent system of state control and supervision in the processes of design, construction and subsequent operation of a particular building, constructions. This leads to duplication of supervisory functions and powers, the lack of coordinated action by the supervisory and control bodies in the organization and conduct of surveillance activities, excessive restrictions entrepreneurship.
   In Russia in 1997 is an increase in the number of reported accidents and buildings. During the last five years (the official Chief Inspectorate Gosarhstroynadzora Construction Committee of Russia) was registered 171 accident of varying severity in 52 regions of Russia.
   According to research a number of central research institutes, due to defects and abuses committed in the construction of buildings and structures, the amount of funds to eliminate the marriage on objects of various construction schemes on average 13-15% of the value of construction work, maintenance repair costs constitute 6-8% (instead of 0.75-1% by standards). In this social damage that is associated with the threat to life and health of citizens, leads to conflict between society and the state.
   In the transition to a market economy legislator desire to reduce administrative barriers to urban development activities generated compliance and enforcement activities led to the dismantling of the centralized system of state control in this sphere. Virtually been eradicated decades prevailing vertical system of institutional control. However, it is no substitute.
   Increasingly reduced the degree of state regulation of building safety, including after the adoption of the federal law "On protection of legal entities and individual entrepreneurs during state control (supervision)" and "On technical regulation". In recent years, the volume of construction in Russia are increasing, while the trend is responsible construction complex of buildings with massive presence of people, high-rise buildings, industrial accidents which result in significant casualties.
   Unfortunately, a growing number of projects under construction with critical defects, increases the severity of the consequences of accidents buildings, dramatically increasing the number of cases of unauthorized construction and violations at the facility to operate.
   To be continued.