Gipsobazaltovye  building  products  and  technology.  Part  2
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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...


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 Gipsobazaltovye  building  products  and  technology.  Part  2

The basis of production gipsobazaltovyh products contained the same basic decisions that are taken in the underlying technology. This means that part of the production line and introduced strict limits nodes associated with the preparation and administration of basalt semis. Formoosnastka somewhat modified, but not structurally, and in part related to possible changes in the configuration stroyizdely.
   Thus, the technology fits into gipsobazaltovyh products developed and tested a set of equipment for the production of basic products analogs, which greatly simplifies and reduces the cost of development of new technology.
   It should be noted that the modified line without substantial readjustment can be produced as gipsobazaltovye and basic product.
   This technology will produce the following gipsobazaltovye stroyizdeliya: elements of exterior walls, elements of internal walls and partitions - including walls, protecting from the action of penetrating radiation, power-liners for precast-monolithic slabs, termozvukoizolyatsionnye plate elements under floor preparation, decoration elements.
   Acquired as a result of a combination of two materials technical properties of the products will:
   a sharp (1.7-1.9) to improve the insulating properties of the exterior walls, not only reached, but exceeded the required standard of performance SNIP II-3-79 * "Construction Firing";
   reduce the weight stroyizdely that will effectively use them especially in the reconstruction of obsolete buildings;
   improve the quality of soundproof wall products that will use them for the construction of insulated space in civilian buildings and structures;
   create ogneizoliruyuschie partitions and ceilings in civil and residential buildings;
   create designs that protect against hazardous penetrating electromagnetic radiation (basalt elements as GTSPV with appropriate additives, have protective properties);
   improve the reliability of products used in high humidity areas.
   The ultimate cost-effectiveness of technology products gipsobazaltovyh has two sources. Due to technical reasons, acquiring a number of new positive qualities, the product yet in production cost is much cheaper than you would expect at their technical level. For example, the unit price for products for ogneotsekayuschey sound absorbing partitions of gypsum partition block is in the same range as the known system drywall porous synthetic filling. It should be noted feature of the basalt semis, as one of the most important factors (raw materials), forming gipsobazaltovyh cost of products. It lies in the fact that the ratio of the level of one-time and ongoing costs in this production significantly biased toward capital investments. Thus, in the production of semi-finished products and the actual conditions in a high capital intensity of the plant is designed to compensate for production of basalt relatively small capital intensity of primary production.
   Economic efficiency is not limited to new products in their production. The main prerequisite for this is the ability to complete delivery gipsobazaltovyh products. The total cost saving of 1 square. of the total area of ​​buildings of low and medium-rise will be 25-30%, taking into account, in addition to the above, reducing the load on the foundations of required power lifting mechanisms, labor and savings in transportation costs.
   The most important quality gipsobazaltovyh products for exterior walls is the possibility of relatively simple methods are technically fully enforce standards for thermal protection of buildings, including input from 2000.
   Analogues proposed gipsobazaltovyh products and technologies, complex production and building critical tasks such level in domestic and foreign practice of building and construction industry is not.
   Development on the subject included in the "integrated urban program" Basalt "in Moscow.