Protect  the  surface  of  the  concrete  floor
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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



 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 film coatings
   Protect the concrete surface, you can use a kind of "skin". This may serve as a urethane or epoxy flooring. Solid resin layer can perfectly protect the concrete floor surface from damage. A thin film coating the resin looks very nice. It shines, do not form spots, very resistant to various chemical influences, it does not collect dust. The film is very thin, and, of course, over time, it also as the skin begins to age and deteriorate, change your beautiful appearance.
   Acquisition of thin-film coating can be compared to buying a new car. At first, he is just gorgeous, but the perfect look impossible to keep forever, and with the epoxy or urethane floor. Thin film coating, in spite of its durability, is temporary. Over time, it loses its attractive appearance, there are scratches, from chipping, cuts and various other flaws. Lifetime can be predicted, it depends on the conditions in which the floor will be operated. You can count on up to 5 years, can repair certain areas, but if the cover is extremely messed up, it will have to remove and change a new one.
   The cost of the coverage about 600 rubles. per square meter, but do not forget to take into account all the costs that are associated with the dismantling and removal of equipment, floor preparation and production downtime at the time of drying.
   Floor wax
   If you want to give the floor shine, use wax. The more layers of wax is applied, the brighter the shine floor. But the irony is that the more layers applied, the more prone to damage flooring, scratches are deeper and they are more visible.
   At first glance it seems that waxing - it is a cheap process, in fact it is not. Applying each subsequent layer comes more and more expensive, and the application cycles are repeated often. Exterior floor wax for long stays perfect, the more it is applied shine more clearly manifest scratches on it. Therefore, the exploitation of its short-lived.
   Liquid sealants and hardeners
   In the construction market you can find the biggest brand hardeners floor: L & M, Ashford Formula and Seal Hard. These brands are well eliminate dust, makes the floor more attractive appearance, retain resistance to sliding. Floors treated with these agents, with regular care support shine. If the original floors were not perfectly smooth, processing hardeners is a good compromise.
   Hardeners and sealers make concrete surface denser and firmer, they simply change its molecular structure. After that, the floor care becomes much easier and cheaper.
   Exterior concrete floor hardeners treated depends entirely on its finishes, as hardeners do not leave any film. If you want to get the perfect option to the processing floor should have a relatively smooth surface. If the original floors looked not the best way, the treatment did not improve their appearance. But: this floor will still be more durable and will protect against dust.
   Floor Care treated with chemical seals, minimal. Such treatment will provide a low cost and long life. And this is - an obvious advantage when compared with other methods of treatment of the concrete floor.
   Companies offering liquid hardeners and sealers, give a guarantee of 10 years. The more sex performed cleanings treated these substances, the greater the brilliance of such coverage. Maintains excellent resistance to slip, when compared with the bare concrete coating.
   Any of the treatments is better than none. Each protects the concrete surface, or improves its appearance. The question is, what do you want to get from the treatment, and for how long to extend the operation of the concrete surface.