Information  technology  for  determining  the  cost  of  building  products  (5)
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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



 Information  technology  for  determining  the  cost  of  building  products  (5)

To solve this problem, in addition to elemental estimate the regulatory framework for the types of work and regions developed resource and technological models for objects, representatives, in which information is generated physical volumes of work, complexity, mehanoemkosti, material requirements on 1 km of LPO or 1 m3 ( 1 m2) ploshchadochnyj objects, as well as current and projected prices for all types of resources. The specified database will allow the complete or partial absence of the working documentation automated using software systems to form a resource and traditional local cost estimates, as well as object and summary estimates. These calculations will generate automated price lists construction costs linearly extended and ploshchadochnyj objects of different types in different regions, ie 1 km of LPO and 1 m3 (1 m2) ploshchadochnyj facilities information system users typing in the computer has a minimum initial data of physical indicators (eg length of the segment of the pipeline with reference to its location, diameter and wall thickness) should receive the full amount of automated estimates with the knowledge of physical quantities and resource needs. When the listings system users an opportunity to assess the cost of construction not only automated, but also simplified by hand, which is convenient for senior management employees.
   Solution of the problem requires the creation of a system development team - qualified professionals and not only quantity surveyors, economists and technologists, but also experienced project and top managers, as for example the development of organizational and technological models representatives Object-qualification requires processing information and making decisions on numerous technologies for the production of works used logistical resources, forced outages of construction equipment climatic conditions, the conditions of the construction of a production organization, etc. In addition, requires special skills to develop mechanisms to determine not only the direct costs, but also the overhead costs of temporary buildings and structures, winter appreciations, the cost of maintaining customer service, unforeseen expenses, estimated profit, as well as various kinds of other costs are not based on their regulatory charges on certain bases, and differentiated by all elements of cost calculation, by analogy with the direct costs.
   Experience in the implementation of information system of OAO "Gazprom" in the development and implementation of large-scale projects such as the Yamal-Europe, Blue Stream, NTR-Torzhok, including both linearly extended and ploshchadochnyj, shows high efficiency in the estimates to improve the accuracy, reliability and continuity of prices for construction products comprising pre-investment, project, contract, tender and construction documents, which served as the basis for the reduction of production costs and increase profits.
   1. Reznitchenko VS Lenintsev NN Systems approaches to pricing and cost management in construction. Ref. benefits. with the methods and examples of calculations. - Moscow: Publishing House "Word", 2004, 468 p.
   2. Reznitchenko VS Lenintsev NN Systems approaches to pricing and cost management in construction. Ref. benefits. with the methods and examples of calculations. 2nd ed. - Moscow: Publishing House "Word", 2005, 516 p.