"The article presents the results of creating a low-cost heat recovery system on the example of ""light"" of the gas infrared emitter by changing a single-layer thin-walled reflector to reflector upgraded on the principle of ""water jacket"" and the results of testing the effectiveness of modernized design on a specially designed stand. As a result, it was concluded that the streamlined design of the reflector gas infrared emitter will minimize the loss of heat towards the ceiling of the building and to avoid condensation on the inner surface of the roofs, a violation of the thermal regime, and as a consequence of premature failure of the roof and walling. In addition, through the use of exhaust heat for heating the coolant (water) flowing through a modernized reflector increases the efficiency of the system of gas infrared heating by 10%."

Keywords: Gas infrared heaters, efficiency, reflector, coolant

There are dendrological features of architectural design of the functional territorial zones taking into account environmental requirements enumerated in the paper. Particularly, we are talking about of the role of green spaces in residential, recreation and industrial zones and features of their selection for landscaping areas in natural and climatic conditions of Rostov-on-Don.

Keywords: functional territorial zones, urban development, ecology, dendrology, the system of green spaces, architectural and planning solutions, greening of urban areas, landscaping, residential areas

The article reviews questions about description disperse composition and concentration of dust using the theory of stationary random functions. This approach allows us not only to obtain the characteristics of disperse composition of dust in the air, but also determine the number of additional parameters, namely, the average residence time fractional concentration above a predetermined level, the average number of outputs fractional concentration per unit time for a fixed level. Examples of correlation functions that can be used to approximate empirical data in the case of stationary процесс are submitted.

Keywords: air medium cities, disperse composition of dust, stochastic process, random function, the fractional composition of the dust, the integral concentration, correlation function, stationary process, normal distribution formula Rice, the function passes

The article presents the problems of development and examination of design and estimate documentation on sharaine career of sand in areas with permafrost for development of oil and gas fields. Typical errors in design and estimate documentation, such as understatement of loss of sand, the poor quality of engineering-geological surveys and laboratory tests of core samples from drilled wells for humidity. Describes the effects of errors on the overpayment of tax on extraction of common mineral resources. Describes the technology and organization of production of dry sand in quarries in areas with permafrost, the drying of sand using solar radiation. As a result the conclusion is made about necessity of development of normative-technical documentation for the development of dry sand quarries in areas with permafrost, the methods of calculation and accrual of the tax on extraction of common mineral resources; opportunities for training in institutions of higher education of bachelors in the quarrying of sand and engineering training facilities.

Keywords: wachna the permafrost, the perennial permafrost zone, the expertise of design and estimate documentation, development of normative-technical documentation, bachelor of quarrying of sand, construction of oil and gas field

The article presents the analysis results for aerated concrete production in the Tyumen region, are considered the distinctive advantages of aerated concrete, as well as significant drawbacks. The basic effects of water absorption of aerated concrete. Describes the process of saturation with moisture of aerated concrete in the construction of buildings, as well as the formation of cracks in the walls in the operation of buildings and constructions, which used the aerated concrete as wall cladding designs. As a result it is concluded that to avoid the effects of moisture (hygroscopicity) on the aerated concrete is possible, by performing additional activities, reducing the time of construction, the proper organization of works at the construction site and compliance with sequence of works.

Keywords: concrete, water absorption, cladding wall design, production technology works, the organization of work, the sequence of execution of works

This article describes the issues on the basis of scientific research and the data produced in-depth analysis of technical condition of water spending long maintained facilities for further classification of defects and damages, as well as the prediction of their remaining life. Mathematical and software was built on the length of the projected water filtration since the beginning of the construction survey. Program - technical complex in the survey predicts the loss of bearing capacity as the structure as a whole and its constituent elements from the moment of injury. In the future, software and hardware predicted time total loss bearing capacity of the construction, using various regression dependence. Technical possibilities of application systems allow calculation of the geometric characteristics of different defects and damages on the surface of structures, and in some of its elements. Presented Program - technical complex for solving the problem of forecasting residual resource of water conveyance structures can be used to create a database during the operation of these structures over a long period of operation that will extend the life cycle of water conveyance structures with regard to their reliability parameters. The basic provisions on the organization of determination and prediction of residual life long maintained water conveyance structures, identification of defects and damages, assessment of suitability taking into account the reliability of the parameters, for further use water conveyance facilities.

Keywords: monitoring, automation, carrying water facilities, livneotvodyaschie facilities, software and hardware, reinforced concrete, technical condition.

The article presents a mathematical description of efficiency of process of spray foam dust suppression on conveyor belts construction businesses. The obtained parametric dependence of the efficiency of dust suppression as a result of setting way foam dust control will provide a predictive calculation of the technological parameters of the process of dust control with consideration of the peculiarities of the interaction of dust aerosols with bubbles of foam, and can also be used as a predictive criterion for the sanitary-hygienic and ecological evaluation of the selected technology for dust control.

Keywords: Dust suppression, foam aerosol, dust aerosol, the efficiency of dust suppression

"The article presents a new method for preparing fine-grained concrete mixtures. The mixture contains Portland cement, silica sand, disperse mineral micro stuff agent and additive superplasticizer. How micro stuff agent used opal - carbonate- kristabolitovyh kremnizemistyh flasks. As a plasticizer was injected superplasticizer POLYPLAST SP-1. New method of preparing fine-grained concrete mix is enclosed in a change of the order of mixing the components and homogenizing. The concrete mixture should be mixed in two stages. The first stage was stirred cement, micro stuff agent, a portion quartz sand and a portion of the mixing water. In the second stage added the rest of the sand, water and superplasticizer. Then finally all the components are stirred until a homogeneous mixture. This method provides reduction of cement consumption by 15% and the superplasticizer by 25%. The proposed method is protected by patent for the invention № 2535321. "

Keywords: fine-grained concrete. disperse mineral micro stuff agent. additive superplasticizer, the method of preparation of the mixture

Presented and analyzed the data of the test results of concrete columns with the flexibility of λh=10 and λh=20, the strengthening of the external carbon fiber reinforcement. Borders impact of the various options strengthen influence on strength and deformability of columns and efficiency of composite materials installed.

Keywords: concrete, reinforcement, reinforced concrete composite, eccentricity, flexibility, capacity, strength, deformability, strengthening

We investigated the creep of concrete arches based on the following theories: the theory of linear creep by Harutyunyan-Maslov, kinetic theory, the theory of flow, theory of aging, and nonlinear theory of Y. Gurieva. We considered viscoelastic model of the concrete, ie total strain was represented as the sum of elastic strain and creep strain. Solution of the problem was carried out by finite element method. We considered the arch rigidly clamped at the ends and loaded with a uniformly distributed load. Graphs of growth of deflection and stress distribution in the reinforcement and concrete are represented. We obtained the substantial redistribution of stress between the reinforcement and the concrete during creep: in reinforcement stresses increased and in concrete stresses decreased. The strongest redistribution occurs on the theory Y. Gureva.

Keywords: reinforced concrete arch, creep theory of heredity, aging theory, the theory of flow, kinetic theory, finite element method, stress-strain state

In the article the results of research in probabilistic production of residual life of load-bearing structures of the coating of the main body R-1 JSC «VOLTAIR-PROM» as a multiple redundant system. The obtained function of the probability of exceeding the design values of snow loads during the operation of the building on the basis of statistical data the distribution of annual maxima. The resulting probability of system failure ""post farm - truss"" given the decline in reserve strength and the likelihood of exceeding the snow load specified level in time. It is shown that the defining characteristics of residual life - probability of failure and the average uptime of the system can be obtained using only the first two statistical moments of the design variables - mathematical expectation and coefficient of variation that does not require extensive statistical data.

Keywords: residual reserves of strength, safety feature, the distribution, reliability, multi-element system, the probability of failure

The article presents the research results of the actual snow load and its security on the basis of the statistical data distribution of the annual maximum water storage in snow, obtained at the weather station Kolomna. The analysis of the implementation of the annual maxima of snow load according to data from 13 weather station located in different snow areas. Indentified all necessary statistical characteristics of the snow load, and the parameters of the law of Gumbel distribution for each snow district. The results of the research concluded that the known desing values of snow loads given in normative documents can be quite simple to obtain the statistical moments of a random variable its one-year highs and the parameters of the Gumbel law. The obtained characteristics are the initial data when conducting a probabilistic analysis of structures and evaluation of their safety and durability.

Keywords: snow load, distribution, annual maximums, the snow line measurements, weather station, security

The problem of optimal allocation of resources - one of the basic optimization problems to be solved in the design of complex systems, determining their structure and methods of operation, so this work is considered one of difference methods for solving inverse problems of non-uniform distribution of resources. The inverse problem of non-uniform distribution of resources formulated as follows. It is necessary to choose the amount of funds the option to specify distribution of units served by the product and to offer such means of their actions to a given level of performance means performing the task was achieved with the minimum of expense. The most common methods for solving inverse problems, various modifications of the method of random search, dynamic programming method. However, the use of these methods in some cases, particularly for large-scale problems, is not effective. Optimal elements, which turned into a row or column assigned to an optimal element from further consideration at this stage of the distribution, the process eliminated to provide an optimal plan of resource allocation in construction.

Keywords: аlgoritm, plan, resursy, edinitsy, metod naimen'shikh otkloneniy, podnadzornye resursy, raspredeleniya, printsip naimen'shego otkloneniya, matritsa, optimal'nyy element, veroyatnost', indeksy.

in addition to standards are the basic concepts and methodology of selection of the outer cross-sectional area of the composite strengthening for bent and eccentrically-compressed elements. Calculation formulas are based on the classical equations of statics.

Keywords: concrete, reinforced concrete, reinforcement, steel, composite, carbon, strength, load bearing capacity

The morphology of the modified Portland cement hydration products was studied transmission electron microscopy. The combined effect of polyvinyl alcohol (PVA) and sucrose on the morphology of hydrosilicates nanoparticles has a synergistic character. he presence of PVA enhances the effect of sucrose. The effect of synergism must be considered in the preparation of multicomponent modifier compositions including PVA

Keywords: "modified cement stone, transmission electron microscopy, the morphology of nanoparticles of hydrosilicates, sucrose, PVA, synergistic effect. "

In this paper we propose a mechanism of group ranking of contractors in the implementation of the construction project with the individual preferences, both in quantitative and qualitative indicators of their past performance, which allows you to create a rational organizational structure. In the course of the construction project developers have the difficult task of determining the priority of the contractors with which to work at different stages of schedule. Such a decision is always accompanied by the risk of selecting an unscrupulous contractor, defined as the probability of a certain level of losses. To reduce the risk of a similar class in the management decision-making process is used to describe the area of ​​feasible solutions using the technologies of system analysis. The results allow to make an informed group ranking of contractors in the performance of the construction project, not only in quantity but also in quality of their work, which significantly improves the quality of decision-making leadership development companies.

Keywords: stroitel'nyy proekt, kriteriy effektivnosti, nechetkaya logika, al'ternativa, ranzhirovanie, prioritetnost', podryadchik, risk, oblast' dopustimykh resheniy, kriteriy optimal'nosti, mnogokriterial'naya otsenka, algoritm

In this paper, the influence of different types of fine ground mineral fillers. Additives introduced in the composition of fine-grained concrete. Selected effective filler based on the local opal-cristobalite of the flask. Set its optimal dosage. As a binder used Portland cement CEM I 42,5 R (Turkey). As the filler used local fine sand with a fineness modulus of Mк 1,12. As additives used opal-cristobalite of the flask, waste slag, ceramsite dust, ground quartz sand. The optimum number of flasks of 0.3 – 0.6 m.p. The use of the flask was increased about 2 times the strength of concrete in bending. The compressive strength increased by 40%.

Keywords: fine-grained concrete, fine ground mineral filler

Chimneys and gas-escape channels elements mostly made of such polymer composite (PC) as glass-fiber plastic, persistently work at the output air temperatures below dew point as opposed to other materials, but can be affected by high temperatures during their use. On this reason it was needed to develop and modify new thermosetting bindings for PC matrix – thermal resistant and heatproof. Thermal resistance characteristic of PC is important for protective coverings, whereas heatproof characteristic is applicable for tensed elements. For a construction made of the new more heatproof PC bearing capacity estimation it is necessary to take normative resistance change and new temperature-time factors demonstration into account in their design resistance. The minimal durability value according to the PC product normative document or technical specification can be considered as normative resistance. For the temperature-time durability coefficients appointment of the new and more heatproof PC the common (base) PC coefficients values can be considered but amending their temperature scale proportionally to heatproof change relative to the base PC.

Keywords: polymer composites, glass-fibers, thermal resistance, heatproof, design resistance, chimneys

It reveals the triad approach in the "man - military equipment" to ensure the harmony and integrity of the system. Application of the "golden mean" in the distribution of resources and benefits for high quality development and operation of three-dimensional system "service living environment - the military staff - military equipment."

Keywords: urban planning, military, armed forces, service living environment, harmony

The stationary heat conduction problem for radiation-heat shield of the reactor nuclear power plant based on domestic sources of heat was solved. We took into account the dependence of the thermal conductivity of the concrete on the temperature, which leads to nonlinear problem. The solution is performed using the finite element method in combination with the method of successive approximations. We used the simplex triangular elements. The problem was solved in axisymmetric formulation. As a design scheme we used a rigidly clamped at the base thick-walled cylinder. It was found that the inclusion of thermal conductivity depending on the temperature leads to a slight (2.5%) increase of temperature in core of the construction.

Keywords: thermal conductivity, finite element method, the steady-state temperature field, radiation-heat shield, thick-walled cylinders

The article is devoted to improving the quality of non-autoclave aerated concrete. The theoretical aspects is considered, the prescription-processing methods is proposed, results of experimental studies is given. The role of the sequence of introduction of the components and mode of preparation of concrete mixture is studied. The effect of hardeners on the properties of aerated concrete is revealed. It analyzes ways of waste disposal and their appropriate application.

Keywords: Concrete, structure, technology, recipe, recovery, sodium sulfate, partially hydrated cement system, an aluminum suspension, a hardening accelerator, coefficient of structural quality

The article presents the vibration diagnostics method for pilons of transmission lines. Pilons has defects: inclined cracked faces with a length of 25-30 cm , with a crack width of 0,4-0,7 mm . The article presents an example of analytical modeling of natural vibrations of a reinforced concrete pilons of transmission lines with defects in the base. Analytical modeling was based on the hypotheses of Euler-Bernoulli. Built an equivalent model of the pilons with defect in the form of an elastic element, simulating the damage in the area of trapping. The calculation of natural frequencies of first five modes of transverse oscillations for different values of stiffness of the defect. The result of this work is to obtain the dependencies of the relative frequencies from the stiffness of the defect and establishment of sufficiently informative criterion for predicting the alarm state of structures. The material presented can be used in the development of methods of diagnostics and monitoring of technical condition of different structures of the core type.

Keywords: vibration analysis, pilons of transmission lines, the defect, analytic modeling, transverse vibrations, natural vibrations, natural frequencies

Тhe analysis of methods and means of evaluation of technical condition of building structures under construction. The developed algorithm of a complex estimation of state of reinforced concrete structures with expired period of preservation. The algorithm of complex diagnostics of a condition of constructions involving complementation of known techniques of estimation of parameters of safety of structures with joint processing of the results, is an effective tool for assessing the actual condition of structures and end-of-life.

Keywords: safe operation, defect, nondestructive control methods, dynamic loading, vibration diagnostics, vibration sensors

The peculiarities of composition and properties of drill cuttings from fields in Orenburg region, the possibility of their use in the manufacture of ceramic products by technology pre-granulation of raw materials and subsequent pressing. The role of liquid glass in the formation of granules and the properties of synthesized stone.

Keywords: drill cuttings, industrial raw materials, granulation, extrusion, ceramic matrix composite structures

The possibility of recycling waste product obtained in the process of oil drilling, at the facilities of JSC "Orenburgneft" in the manufacture of products of building ceramics. Dobropolye investigated the properties of the original raw material is drilling cuttings and clay deposits Buzuluk, Dobropolye firing properties of the products on the basis of the three-component mixture. The research is aimed at recycling and disposal and recycling of drill cuttings that will significantly improve the environmental situation and will create a reserve of cheap raw materials for production of ceramic building materials.

Keywords: Drill cuttings as a source of raw materials for production building ceramics plastic molding