Abstract. Objectives In the article, problems in the optimising of machining operations, which provide end-unit production of the required quality with a minimum processing cost, are addressed. Methods Increasing the effectiveness of experimental research was achieved through the use of mathematical methods for planning experiments for optimising metal cutting tasks. The minimal processing cost model, in which the objective function is polynomial, is adopted as a criterion for the selection of optimal parameters. Results Polynomial models of the influence of angles φ, α, γ on the torque applied when cutting threads in various steels are constructed. Optimum values of the geometrical tool parameters were obtained using the criterion of minimum cutting forces during processing. The high stability of tools having optimal geometric parameters is determined. It is shown that the use of experimental planning methods allows the optimisation of cutting parameters. In optimising solutions to metal cutting problems, it is found to be expedient to use multifactor experimental planning methods and to select the cutting force as the optimisation parameter when determining tool geometry. Conclusion The joint use of geometric programming and experiment planning methods in order to optimise the parameters of cutting significantly increases the efficiency of technological metal processing approaches. 

Abstract. Objectives The purpose of the study is to create a methodology for computing the design of the primary drive mechanism of metal cutting machines, making it possible to reduce error when realising a set of preferred output criteria. Methods The accuracy of established modes of operation is a key determinant on which the efficiency of cutting operations depends. In order to determine and evaluate drive errors in metal-cutting machines, three methods were proposed: direct measurement of the frequencies of the series, calculations using kinematic balance equations and summation of individual components. It is recommended that an unloaded machine be used to check the accuracy of the series gained by the machine's drive. Results By measuring the actual spindle rotation frequencies and kinematic calculation – as well as summing the components of the total error – the developed methodology makes it possible to calculate and estimate the error of a series gained by the drive of a metal-cutting machine at the design stage with a sufficiently high accuracy. The presented complex helps to reveal the role of the rounding error of the output criteria in the formation of the general relative error and provides a basis for its possible reduction. Conclusion The use of the proposed methodology expands the scientific basis for the development of algorithms and programs facilitating the selection of the optimal number of gear teeth for multiplying groups and structures and guaranteeing high accuracy of the gained series. 

Abstract. Objectives The aim of the work is to study the possibilities for using a semiconductor device to cauterise bleeding by means of cooling (cryocautery). Method The study is based on methods for approximate modeling of heat exchange processes. Results The construction of a device for cauterisation of bleeding, the actuating element of which consists of a thermoelectric battery operating in cooling mode at the time of blood flow cautery and in heating mode when removing the device from the damaged area, is considered. A model of a device, realised on the basis of the solution of the problem of solidification of a viscous liquid by the method of L.S. Leibenson, is proposed, taking into account the electro- and thermo-physical characteristics of the thermoelectric battery cold source. As a result of the numerical experiment, the dependence of the duration of the ice crust formation on tissues 1 mm thick (which corresponds to the cauterisation of bleeding) is obtained on the value of the supply current of the thermoelectric battery. With increasing current, the duration of the ice crust formation is reduced; this can be of the order of 160 s at 5 A. It was demonstrated that the selection of thermoelectric battery parameters and current should be guided by medical norms and standards in order to avoid frostbite in the tissues adjacent to the bleeding zone. Conclusion The special design of thermoelectric device provides an effective technical means for cauterising bleeding by freezing (cryocautery), providing high intensity of cooling, shortenened thrombus formation duration, and eliminating painful sensations when removing the device from a damaged area. 

Abstract. Objectives The aim of the study is to generalise the results of the application of technologies and means for organising pulse coolant flow within a district heating system in order to increase its energy efficiency based on the organisation of local hydraulic shocks and the subsequent use of their energy to ensure the purification of heat energy equipment, intensify the heat transfer process and realise the possibility of transforming the available head from one hydraulic circuit to another. Methods Substations connecting the thermal power installations of consumers with heat networks via dependent and independent schemes are analytically generalised. The use of pulse coolant circulation is proposed as a means of overcoming identified shortcomings. Results Principal schemes of substations with pulse coolant circulation for dependent and independent connection of thermal power installations are detailed. A detailed description of their operation is given. The advantages of using pulse coolant circulation in substations are shown. The materials reflecting the results of the technical implementation and practical introduction of this technology are presented. Conclusion Theoretical analysis of the operation of the basic schemes of substations with pulse coolant circulation and the results of their practical application, as well as the materials of scientific works devoted to the use of the energy of a hydraulic impact and the study of the effect of pulse coolant flow on thermal and hydrodynamic processes, have yielded a combination of factors reflecting technical and economic rationality of application of pulse coolant circulation. 

Abstract. Objectives The aim of the study is to create a model allowing us to improve the accuracy of fuzzy control algorithms for complex objects in conditions of uncertainty. Methods An approach of fuzzy representation and comparison of the state parameters of complex objects of control in conditions of uncertainty has been developed. The principle of realisation of information-analytical model of proportional-integral-derivative law of regulation of state parameters of a complex object on the basis of linguistic variables and linguistic functions is proposed. A method for constructing graphs of linguistic functions is developed on the basis of expert data processing using regression analysis methods. Results An information-analytical model for a fuzzy proportional-integral-derivative law is constructed that allows a satisfactory level of accuracy for the regulation of the state parameters of a complex control object in an unstable environment to be achieved. The main drawback of fuzzy algorithms for managing complex objects (low accuracy in regulation of the state parameters of the control object) is identified and major limitations associated with their effective use are analysed. It is shown that one of the most effective means of circumventing the noted shortcoming is the use of the information-analytical model of the proportional-integral-derivative law of the state parameters of a complex object with fuzzy control algorithms used to implement selectable controls. Conclusion The proposed approach allows the proportional, integral and derivative fuzzy laws of regulation to effectively control the state of complex objects under undetermined and unstable operating conditions based on fuzzy control algorithms provided on this basis

Abstract. Objectives A computer simulation of the antiferromagnetic structures described by the three-vertex Potts model on a triangular lattice is performed, taking into account the antiferromagnetic exchange interactions between the nearest J1 and second J2 neighbours. The main goal of the computer simulation was to elucidate the effects of ground state and areas of frustration on the thermodynamic and magnetic properties of antiferromagnetic structures described by the lowdimensional Potts model. Method The computer simulation is based on the Monte Carlo method. This method is implemented using the Metropolis algorithm in combination with the Wolff claster algorithm. The computer simulation was carried out for low-dimensional systems with periodic boundary conditions and linear dimensions L = 24124. Results On the basis of heat capacity and entropy analysis, phase transitions were observed in the considered model to possess exchange interaction parameters J1 <0 and J2 <0 in the variation intervals 0r<0.2 and 1.0<r2.0 (r=J2/J1). In the intermediate interval 0,2r1,0 there is no phase transition, and frustrations are observed. The temperature dependences of thermodynamic parameters, such as heat capacity, susceptibility and entropy, were obtained for all considered systems with linear dimensions L. The behaviour of these parameters, both at low and high temperatures, is discussed. The temperatures of the phase transitions are determined using the Binder fourth-order cumulant method. Conclusion Cases are shown in which, depending on the r-value, either a phase transition or a frustration is observed in the simulated system. It is proved that the competition between the exchange parameters of the first and second nearest neighbors in the r variation interval 0,2r1,0 leads to a degeneracy in the examined structure ground state; frustrations are additionally observed in the interval under consideration. On the basis of the obtained data, a phase diagram is constructed depending on the phase transition temperature and r-ratio.

Abstract. Objectives To increase the functional efficiency of information and educational environments created by automated training systems by realising individually oriented formation of knowledge using adaptive generation of heterogeneous educational influences based on an innovative block of parametric cognitive models and a set of programs to support the automation of research tasks. Method System analysis and modeling of the information and educational environment. In the process of automating the diagnosis of the individual personality characteristics of the subject of education, each method of investigation determines the input: localisation of research method, name of block of questions (subtest), textual explanatory content, formulation of question and answer variants, nominal value of the time interval for displaying the formulation of the question, as well as the graphical accompaniment of a specific question and answers thereto. Results The applied diagnostic module acts as a component of the automated learning system with adaptation properties on the basis of the innovative block of parametric cognitive models. The training system implements the generation of an ordered sequence of informational and educational influences that reflect the content of the subject of a study. Conclusion The applied diagnostic module is designed to automate the study of physiological, psychological and linguistic parameters of the cognitive model of the subject of education to provide a systematic analysis of the information and educational environment and the realisation of adaptive generation of educational influences by using training automation approaches that allow the individual characteristics of trainees to be taken into account. 

Abstract. Objectives The aim is to compare the efficiency of using the Euclidean and Mahalanobis metrics to solve the problem of determining the category of potential text recipients. The relevance of the task is determined by the need to develop a means of identifying the recipients of electronic documents. This has been complicated with the introduction of age restrictions on the content of Internet webpages and text resources. Moreover, there has been little coverage of this issue in the works of Russian researchers. Method A comparison of the relative efficiencies of using Euclid and Mahalanobis distances was carried out within the framework of the implementation of an intelligent system for text automatic classification based on the age category of their recipients. Results The main approaches to establishing proximity measures of objects represented as sets of classification characteristics are discussed and the choice of Euclidean and Mahalanobis metrics for numerical comparison of classification results is justified. A description of the sample texts and characteristics of category designations are given for a computational experiment. The computational experiment was carried out using texts included in the National Corpus of the Russian language. Conclusion The computational experiment allows the most effective method for solving the problem of determining the age category of potential text recipients to be selected. The results of the experiment showed the possibility of using Euclidean and Mahalanobis metrics for solving text classification problems; the preference for using Mahalanobis metrics for estimating distances by objects represented by correlated features was also confirmed. The presented comparison of the relative efficiencies of Euclid and Mahalanobis distances was carried out within the framework of the implementation of an intelligent system for automatic text classification based on the age category of their recipients. 

Abstract. Objectives In this paper, methods for solving of a class of combinatorial tasks, known as systems of distinct representatives (SDR), are considered. The objective is to develop methods and algorithms for the formation of a combinatorial SDR configuration that includes as rows, columns or row- and column subsets, which are composed of elements of the original family of nxn – sets occupying different positions in the initial sets, as well to determine the possible number of proposed configurations. Method Index ordering methods are used for the arrangement of elements in the formed systems of distinct representatives, the essence of which is to formulate requirements for the process of configuration having specified properties through the regularity of indexing elements within these configurations. Results The general formulation of the issue of constructing an SDR is considered in terms of a problem of formation from the elements of sets and subsets, which include one element from each initial set, with each of these elements being located at different positions in the original sets. The task was reformulated in reference to the requirements for indexing the elements of these subsets. Each element in set systems has a two-index designation, with the first element in the index indicating membership of a specific initial set and the second – to its location. In order to fulfil the requirements formulated in the task, it is necessary for indices of the SDR elements to have values from 1 to n. Conclusion Two methods for solving the problem are proposed: cyclic shifts of rows and columns of the matrix configuration formed by the original sets, and by a given law for indexing the elements of the environment. The number of possible options for the formation of representative systems is determined. The reasons for the propagation of the proposed methods for solving the problem are established only for initial sets of odd dimensions. 

Abstract. Objectives The aim of the study is to formalise a generalised algorithm for the distribution of targeted information in social networks, serving as the basis for a methodology for increasing personal information security. Method The research is based on the methodology of protection from unwanted information distributed across social network systems. Results The article presents the formalisation of an algorithm for the distribution of targeted information across social networks: input and output parameters are defined and the algorithm’s internal conditions are described, consisting of parameters for implementing attack scenarios, which variation would allow them to be detailed. A technique for protection from targeted information distributed across social networks is proposed, allowing the level of protection of personal data and information of social networks users to be enhanced, as well as the reliability of information increased. Conclusion The results of the research will help to prevent threats to information security, counteract attacks by intruders who often use methods of competitive intelligence and social engineering through the use of countermeasures. A model for protection against targeted information and implement special software for its integration into online social network social information systems is developed. The system approach will allow external monitoring of events in social networks to be carried out and vulnerabilities identified in the mechanisms of instant messaging, which provide opportunities for attacks by intruders. The results of the research make it possible to apply a network approach to the study of informal communities, which are actively developing today, at a new level. 

Abstract. Objectives The aim of the study is to search for methods to improve the efficiency of the earthquake protection systems with rubber-metallic seismic insulating supports by combining them with dry friction and brittle uncoupling elements. Method The research is based on dynamic modelling methods. Results The computational dynamic model of the combined earthquake protection system and the system of differential equations of the seismic motion of a five-story frame building were compiled and an algorithm for estimating the efficiency and selection of the optimum parameters of the earthquake protection system was developed. Horizontal shifting seismic forces, maximum mass movements and maximum movements of rubber-metallic seismic insulating supports at different intensities and prevailing periods of seismic soil oscillations were determined. It is shown that, by using a combined earthquake protection system, seismic loads on frame buildings can be reduced by a factor of 1.5-2 and maximum mass movements – by 4-5 times. In addition, the area of rational application of seismic isolation systems with rubber-metallic supports in relation to the prevailing periods of seismic ground oscillations is expanding substantially. Conclusion The combined earthquake protection system allows the area of effective use of rubber-metallic supports to be expanded by increasing the range of possible prevailing periods of seismic soil vibrations at which the maximum movement of the top of the rubber-metallic supports does not exceed the maximum allowable value. The maximum residual movements of rubber-metallic supports can be reduced by using a lead core. 

Abstract. Objectives Modern building codes prescribe the calculation of building structures taking into account the nonlinearity of deformation. To achieve this goal, the task is to develop a methodology for calculating prestressed reinforced concrete beams, taking into account physical and geometric nonlinearity. Methods The methodology is based on nonlinear calculation algorithms implemented and tested in the computation complex PRINS (a program for calculating engineering constructions) for other types of construction. As a tool for solving this problem, the finite element method is used. Non-linear calculation of constructions is carried out by the PRINS computational complex using the stepwise iterative method. In this case, an equation is constructed and solved at the loading step, using modified Lagrangian coordinates. Results The basic formulas necessary for both the formation and the solution of a system of nonlinear algebraic equations by the stepwise iteration method are given, taking into account the loading, unloading and possible additional loading. A method for simulating prestressing is described by setting the temperature action on the reinforcement and stressing steel rod. Different approaches to accounting for physical and geometric nonlinearity of reinforced concrete beam rods are considered. A calculation example of a flat beam is given, in which the behaviour of the beam is analysed at various stages of its loading up to destruction. Conclusion A program is developed for the calculation of flat and spatially reinforced concrete beams taking into account the nonlinearity of deformation. The program is adapted to the computational complex PRINS and as part of this complex is available to a wide range of engineering, scientific and technical specialists. 

Abstract. Objectives The aim of the research is to find optimal design solutions for the erection of buildings that will ensure their reliability and durability, compliance with environmental requirements, fire resistance and earthquake resistance. In this regard, the task is to determine the advantages and prospects of erecting earthquake resistant buildings from tube concrete constructions, since they are distinct in constructive, technological and economic efficiency when are used as vertical load-bearing struts of high-rise buildings. Method The technique for calculating the strength of normal sections of eccentrically-compressed tube concrete elements uses a nonlinear deformation model, taking into account the joint operation of the steel shell and the concrete core under the conditions of triaxial compression. Results In the article the review of the newest world experience of using tube concrete as vertical load-bearing structures for public facilities from the standpoint of earthquake resistant construction is given. The international practices of public facility construction ranging in height from 100 to 600 m with the use of tube concrete technology, including regions with dangerous natural and man-made conditions, have been studied. The structural, operational and technological advantages and disadvantages of tube concrete technology are analysed. Methods for calculating the strength of concrete tube elements in the case of central compression are considered: according to the so-called deformation theory, the state of total destruction of both concrete and tube fluidity attained at maximum pressure are indicated by the beginning of "tube flow on the longitudinal axis". The advantages and disadvantages of both methods are shown. Factors constraining the introduction and wider application of tube concrete constructions in Russia are considered. Conclusion While the advantages of concrete tube constructions in their extensive implementation in earthquake-resistant construction are obvious, further in-depth studies of the behaviour of tube concrete elements operating under both static and dynamic stresses repeatedly, statically indeterminate load-carrying building frames are needed. 

Abstract. Objectives The aim of the study is to clarify the dependence of the cement stone strength on additional porosity that is formed owing both to the cement stone’s development of free deformations and the expansion of the hardening concrete in the second stage as caused by the action of the expanding additive. Method The study is based on the introduction of a sulphoaluminate-type expanding additive in the composition of a binder based on alumina cement, natural gypsum stone and nitrilotrimethylphosphonic acid. Results It is shown that an important role is played in the technology of expanding concrete not only by the degree of expansion of the cement stone, but also by its strength, both during the development of deformations and following stabilisation. Among factors influencing the kinetics of hardening are not only recipe-related (composition and dosage of the additive, mineralogical composition of Portland cement clinker, composition of the concrete, presence of chemical additives), but also technological (fineness of cement grinding, hardening temperature, etc.) that makes the management of the processes of structure formation quite complex. The dependence of the strength of cement stone on the additional porosity formed due to the growth of the cement stone own free deformations and expansion of the hardening concrete in the second stage due to the action of the expanding additive is revealed; dependence of the influence of kinetics of the structure formation regulator - nitrilotrimethylphosphonic acid - on the consistency of the development of the intrinsic free expansion deformations and the formation of the strength of the cement stone in the second stage; the dependence of the strength of the cement stone on the additional porosity formed due to gas evolution and expansion of the mixture in the first stage due to the action of the gas-forming additive; the influence of the constraint of expansion on the formation of the structure of cement stone and its strength; the effect of hardening conditions on the strength characteristics of concrete with a two-stage expansion. Conclusion The process of expansion under the conditions of deformation free development is accompanied by an increase in the porosity of the cement stone of up to 9% and a regular decrease in the strength of the cement stone by compression up to 19.3%. The effect of hardening conditions on the compressive strength of concrete with a two-stage expansion is established: when exposed to air for 28 days at a temperature of 5 ºC, the strength decreases to 50% relative to normal conditions, and at a temperature of 35 ºС - to 14 %. With water aging the strength is reduced to 33% due to intensive expansion in the second stage. The dependence of the ratio of tensile strength to compressive strength for concretes with a two-stage expansion is specified, taking into account the hardening conditions.

Abstract. Objectives To determine the damage probability of earthquakes of different intensities on the example of a real projected railway station building having a framework design scheme based on the density function of damage distribution. Methods Uncertainty, always existing in nature, invalidates a deterministic approach to the assessment of territorial seismic hazards and, consequently, seismic risk. In this case, seismic risk assessment can be carried out on a probabilistic basis. Thus, the risk will always be there, but it must be minimised. The task of optimising the reinforcement costs is solved by using the density distribution function for seismic effects of varying intensity, taking into account the degree of building responsibility. Results The distribution functions of the expected damage for a building with a reinforced concrete frame located in a highly seismic region with a repetition of 9-point shocks every 500 years and 10-point shocks once every 5000 years are constructed. A significant effect of the seismic resistance class of a building on the form of the distribution functions is shown. For structures of a high seismic resistance class, not only is the seismic risk reduced, but also the variance of the expected damage. From the graphs obtained, it can be seen that the seismic resistance class significantly affects the damage distribution. At a probability of 0.997, the expected damage for a non-reinforced building will exceed 43%; for a reinforced one it is only 10%. It also follows from the graphs that the variance of the damage magnitude decreases with the growth of the seismic resistance class of the building. This fact is an additional incentive for investing in antiseismic reinforcement of buildings. Conclusion The study shows the expediency of working with the damage density distribution function when managing seismic risk. In this case, it becomes possible to strengthen the building with a specified probability of damage exceeding the acceptable level during the operation of the construction. This takes into account not only seismic risk (mathematical expectation of damage), but also the dispersion of the expected magnitude of the damage. With the growth of seismic resistance class of the construction, it is possible to reduce both the risk and dispersion of possible losses. 

Abstract. Objectives The aim of the study is to identify the impact of labour migration processes on the quality of human capital. Methods For researching the methods and forms of migration capital’s impact on the formation of a new quality of human capital, a systematic approach is applied. In order to identify the imbalance in the distribution of labour resources among the regions of the Russian Federation and to assess migration processes, analytical and synthetic as well as statistical and comparative methods were applied. In order to help to visualise the identified economic and statistical dependencies, graphic images are provided. Results The essence of migration processes in the era of economic turbulence is revealed. The main share of labour migrants in the overall structure of migratory flows to the Russian Federation are labour migrants from the CIS countries; the main reasons for this situation are established. The factors of Russia’s high migration attractiveness are identified and the basic migratory process management tasks are defined. Among the main tasks of migration process management are: ensuring the national security of the Russian Federation; preservation, maintenance and improvement of comfort, well-being and quality of life of the Russian Federation population; solving the problems of stability and growth of the permanent population of the Russian Federation; creating conditions for the full satisfaction of the high-quality labour resource needs of the Russian economy, attracting labour migrants from highly developed countries; formation of conditions for the transition to sustainable development based on the introduction of scientific and technological progress and the creation of competitive industries. Conclusion The paper suggests three scenarios for the development of migration processes in Russia: inertial, realistic and optimistic. Improvements in the quality of migration capital can be achieved through the activation of business migration processes, which will positively affect the quality of human capital in general. 

Abstract. Objectives The aim of the study is to develop a system of indicators that allow the level of intensity and extensiveness of using the active part of the basic production assets of a construction firm to be determined, and available reserves to be assessed in order to provide their further effective use in the production process. Method During the research, both the methods of estimating the level of intensive and extensive exploitation of the active part of basic production assets and the Lagrange multi-parameter optimisation method were used. Results A solution of the relevant issue is proposed, connected with the intensive development of the construction company in the current market conditions based on the optimal use of the reserves of the active part of basic production assets. A system of indicators is developed for estimating the reserves of the active part of basic production assets and a methodology is proposed for their optimal distribution between objects that are simultaneously under construction, according to the criterion for obtaining maximum profit. Conclusion The revealed reserves of the active part of basic production assets should be taken into account when planning all types of production and economic activities of a construction firm. This allows the formation of plans to be the scientific validated, contributing to increasing efficiency and the use of available resources in the production process to be minimised. In this case, it is necessary during the planning process to ensure the optimal use of available reserves using the criterion of maximising the profit received by the construction firm. The tools proposed in the work allow us to evaluate and effectively use the construction company's existing reserves of various types of active part of basic production assets and, on this basis, increase the efficiency of construction production. 

Abstract. Objectives The aim of the work is to study the outsourcing mechanism from the point of view of increasing the efficiency of repair and maintenance at a metallurgical enterprise. Method Analysis of the experience of using outsourcing of repair services at domestic and foreign metallurgical enterprises was carried out. Analysis of the experience of the withdrawal from enterprise repair services into a separate outsourcing company has shown that the main advantages of this method of organising repair activities are an increase in the transparency of the costs of repairs and maintenance, and hence their reduction, as well as a reduction in the amount of equipment downtime. The main characteristics of outsourcing were revealed, substantiating its expediency. The restructuring of the repair system provides a step-by-step transition from decentralised to centralised structures of technical, mechanical, power and electrical repair services of enterprises, from the principle of "self-service" to the principle of "proprietary service" by isolating the subdivisions of the repair system from the structure of enterprises and creating competing members of the repair services market. Put another way, this is typified by moving away from the status of auxiliary production to a selfdependent activity. The stages of outsourcing the repair services of the enterprise are considered and possible problems that may arise in the course of the work of a working group are established to determine the suitability of outsourcing and to resolve the numerous issues arising from the transfer of repair functions. Results The findings of the research include approaches developed for overcoming risky situations: providing guarantees from the customer and the contractor and indicating them in the contract, increasing the motivation of the outsourcing company through a key performance indicator that should increase the interest of the performer in providing quality services to the customer. Conclusion As a result of the research it was revealed that the implementation of outsourcing requires concerted action from the customer and the outsourcer. Outsourcing is a new approach to managing the costs of repair and maintenance of the main equipment. The transfer of repair functions to outsourcing helps the enterprise to operate the service object economically and achieve its goals.

Abstract. Objectives The aim of the study is to develop a system of practical measures to ensure the most effective promotion of construction products to the market. Method During the process of research, methods of logical, statistical and comparative analysis as well as expert evaluations were used. Results Analysis and assessment of the construction market situation enabled a group of factors that affect the sales of construction products – in particular, building materials – to be identified, which constituted an empirical basis for developing a strategy for their promotion, aimed at maximum satisfaction of solvent demand and profit. It is determined that as an instrument of the communication policy of a construction enterprise, the promotion of construction products is a system of incentive measures and techniques designed to stimulate sales. A characterisation of the promotional system of construction products as an instrument of marketing communications is presented, revealing the target dependence of measures to stimulate sales from stages of the life cycle. The criteria for selecting the promotion channels have been systematised, serving as the basis for the strategic approach to the organisation of the distribution logistic system in construction and the steady positioning of construction products on the market. Conclusion A strategic approach to the promotion of construction products in the market ensures the creation of a system of effectively integrated marketing communications, implemented in the form of a strategic bridging partnership. Realisation of the strategy of construction product promotion comprises a reliable basis for strengthening the market positions of construction companies under the harsh conditions of a competitive environment.