About  the  rapid  pace  of  development  of  the  construction  industry  in  China.  (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



 About  the  rapid  pace  of  development  of  the  construction  industry  in  China.  (1)

China`s construction industry, which accounts for 6.9% of GDP, continues to evolve rapidly. The number of registered construction firms at the end of 2003 was 48,688 with a total number of people employed in the construction of 45 million people with a total annual revenue of $ 278 billion (an increase of 24.6% compared with the previous year). About 500 leaders of the Chinese construction industry had total annual revenues of $ 76.8 billion or 27.6% of total revenue. Total production of construction industry in China, according to Xinhua News Agency, the first half of 2005 increased by 18.4% and amounted to almost $ 150 billion, and the total amount of profit for the year totaled $ 1.8 billion (an increase of 25.4% over year) in labor productivity in construction total expression $ 6574 person / year (an increase of 13.4%). Currently, the country is being built about 2.2 billion m2 of space for different purposes.
   By year end, according to the Ministry of Construction on China`s urban residents had an average of 24.97 m2 of living space, and in the eastern regions of the country, it was 26.76 m2 per person, in the central regions - 22.9 m2, while in the western regions - 24.26 m2. The total living area of ​​the country was at the same 9.62 billion m2, while in the eastern regions of the country, it was 4.72 billion m2, in the central regions - 2.82 billion m2, and in the western regions - 2.08 billion m2.
   The rapid growth of the construction (investment growth in the first six months of the 2005 in 8 provinces of the country exceeded 40%), and especially the rising cost of housing causes some concern among industry leadership. Certain changes in the macroeconomic policies of the Ministry of Construction to stabilize housing prices. Under the new guidelines, in particular, if the housing is resold in less than 2 years after its settlement, the seller must pay the industrial tax in accordance with the wholesale price of this property. In addition, developers income housing areas is limited to 3%, with local authorities before permission to start development of the site put clear limits on the cost of construction and the sales value of the so-called affordable housing. The restrictions have led, according to the National Bureau of Statistics, to slow the growth of investment in housing construction in the country of 5.2% and a decrease in housing prices in the fastest growing cities of Shanghai and Hangzhou by 5%.
   According to the statement of the Ministry of construction adopted measures will help stabilize the situation in the industry and will not interfere with its successful development.
   The urban population is growing rapidly and has reached 540 million people, compared with 170 million in 1978 with an annual growth rate of 14 million people. According to the Asian Development Bank in the 1960s in Asia lived in cities 1 of 5 residents live there today 1 of 3, and in 2020 will live every second resident. According to the UN by 2010 there will be 23 world metropolis with a population of over 10 million people, of which 12 will be in Asia: Beijing, Shanghai, Tianjin, Delhi, Mumbai, Kolkata, Dhaka, Hyderabad, Karachi, Manila, Jakarta and Seoul. The objectives of the Ministry of Construction in this direction are the scientific planning urban development, energy-efficient new construction, environmental protection, preservation of historic buildings, increase the manageability of cities through the use of information technology.
   To be continued.