Gipsobazaltovye  building  products  and  technology.  Part  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...


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 Gipsobazaltovye  building  products  and  technology.  Part  1

Gipsobazaltovyh technology products based on two basic technologies: production of products for gypsum cement-pozzolanic binders (GTSPV) and plaster (for interior with normal humidity) on the one hand, and the production of discrete and continuous basalt fiber, on the other hand. Technical basis for the association became their property, providing technological and operational compatibility - good grip and GTSL solution of gypsum binder with basalt fibers, mutually beneficial chemical properties and corrosion resistance of them in relation to each other. Both materials are fire, water, bio-, frost-and weather within the standards corresponding to the class of building products for the manufacture of which is supposed to use them.
   The main feature of the technology of manufacturing gypsum products is that cellular, lightweight material GTSPV produced without the use of known methods - pre-cooking foam, gas-input addition, Vapor or autoclaving. Thus the strength characteristics of the resulting material is higher than that of analogues due to peculiarities of the method of preparation of the moldable mixture. Mixing system can simultaneously produce and put the mixture in the form of a variety of weights and strength depending on the set parameters of the mixer. In the production line forms are interchangeable tooling, which include production as needed to produce a certain amount of a specific product.
   Equipment and production line formoosnastka placed ground and compact, occupying a relatively small area, which, in combination with a small amount of technological limits and uncomplicated technologically workflow technology gives completeness and conciseness.
   The main production technologies are bazaltovoloknitov production technology basalt super discrete fibers (TBF): primary method of blowing fiber high speed flow of hot gases and spinneret continuous basalt fiber technology.
   Crushed basalt rock is fed into an oven where melting and homogenized at 1500 C, then fed through an outlet connected with the spinneret plate through which the primary fibers are pulled. Primary fibers enter the blowing chamber, wherein forming superfine fibers with a length of 30-60 mm and a diameter of 1.6 microns, and then with a stream of hot gases enter the deposition chamber to the guide cone and are collected on a moving conveyor. On the grid conveyor formed thin "carpet" BSTF which is wound on a drum.
   Continuous fiber obtained otherwise. Crushed rock is supplied to the furnace in batches where melts at about 1500 C. Further through feeders to melt enters spunbond vessels with orifices complex forms through which extend continuous filaments with a diameter of about 9 microns. Next, the filaments are formed in multifilament yarn - roving and roving twist receive basaltic thread.