bluuebunny/crossref_metadata_2025_split huggingface dataset:
Settlement and bearing capacity of the foundation of a finite width due to extrusion of a loose ground layer from the compressed footing mass
Authors: Ter-Martirosyan Zaven , Demyanenko Valery 
Published: July 2020

Abstract
The paper provides a quantitative assessment of the deflected mode of foundation stratum of finite width foundation, in the compressible thickness of which there is a slack clay soil layer. A number of criteria for assessing the possibility or impossibility of extruding a slack layer depending on its strength and rheological properties, as well as the relative thickness of the layer to its length (h/l) and the relative depth of the layer (h/d) have been given. Closed analytical solutions are given to determine the rate of Foundation precipitation depending on the rate of extrusion of the weak layer, including taking into account the damped and undamped creep.
Comparative analysis of the compression strength characteristics of polymer concrete modified by ultra-fine by-products silicon and aluminum industries
Authors: Balabanov V B , Putsenko K N 
Published: July 2020

Abstract
Presently, one of the actual problems of concrete science is the improvement of concrete formulations by using industrial waste, ultra-fine by-products from the production of aluminum and silicon industry, as well as modification by means of additives. The aim of scientific research is development of new technologies for obtaining concrete with enhanced performance characteristics. The article provides an overview of the causes of concrete destruction and methods for increased physical-mechanical characteristics and of concrete. The results of a literature search on the experience of using silica fume and polymers in concrete are presented. The advantages and disadvantages of using silica fume and polymers in the composition of concrete are identified. A study was carried out to determine the effect of various modifying additives on the physical-mechanical characteristics of concrete. Experimental studies have been conducted on the joint use of silica fume and polymers in concrete mixture. The results of the study are: the optimal amount of silica fume is 10-20 %, the optimal amount of polymer is 1.0-3.5 %. On the basis of tests to determine the strength revealed that the class of concrete increased from B15 to B30 compared with the composition of the control sample.
Determination of scale coefficients for samples of autoclave structurally heat-insulating aerated concrete based on fly ash
Authors: Baranova A , Krivyh M 
Published: July 2020

Abstract
The article presents the results of determining the scale coefficients for autoclave structurally heat-insulating aerated concrete based on fly ash. In the course of research, the dependences of the compression strength values on the size and area of the working section of samples of autoclave aerated concrete of the grades D500 and D600 are derived. The dependences of mechanical characteristics on its average density in the range from 500 to 600 kg/m3 are established. For samples of autoclave structurally heat-insulating aerated concrete based on fly ash, the values of scale coefficients were experimentally determined, which in relation to the base sample of 150x150x150 mm are: for prisms of 40x40x160 mm – 1.45, for cubes of 70,7x70,7x70,7 mm and 100x100x100 mm – 1.2 and 0.95, respectively.
Preparation of highly selective sorbents from metallurgical wastes based on cavitation activation of sorption centers
Authors: Dubrovskaya O G , Bobrik A G , Bobrik M A , Matushenko A I , Eldarzade E A 
Published: July 2020

Abstract
Having analyzed the initial data of RUSAL Krasnoyarsk Aluminium Smelter, we classified 45 types of waste, determined the hazard classes and estimated annual waste accumulation to be stored and disposed of. It has been defined that 14 types of waste can be recycled and reused as constructional materials of various purposes and sorbents for industrial wastewater treatment. In this study, we subjected a lining scrap of various origin, to a complete physical and chemical analysis in order to specify the type of modification and treatment of waste, specifically lining brick scrap, in the Testing laboratory of structural materials and chemical analysis of water of the School of Engineering and Construction, Siberian Federal University, and determined the chemical composition of this waste by the X-ray fluorescence (XRF) method. We also identified the substances suitable for modification of the sorbent – the oxides of aluminium, iron, silicon, and titanium – in the optimal percentage ratio, which resulted in obtaining functional active sorbents with high technical and operational characteristics at low costs for mechanical grinding and activation.
The study of the phase composition and microstructure of composite binders using industrial waste Transbaikalia
Authors: Lkhasaranov S , Urkhanova L , Danzanov D 
Published: July 2020

AbstractThe further development of industry is decelerated by lack of energy resources. This is especially significant for the construction industry. Considerable energy savings can be achieved by using specially prepared raw materials. The modern complex approach to solving problems in civil engineering requires additional development of resource-saving technologies, which imply the widespread use of associated industrial products, designed to significantly reduce the energy intensity of cement and concrete production without a fundamental change in technology. The article presents the results of studies on the possibility of obtaining a composite binder using technogenic waste - fly ash and polycarboxylate type superplasticizers. It was investigated that natural pearlite and fly ash can be used as part of a multi-component fine cement. With the introduction of fly ash and superplasticizers, the technological and mechanical properties of cement change. High mechanical properties of the composite binder were obtained when the content of fly ash in the amount of 30 wt. % This is due to the structure-forming role of fly ash during Portland cement hydration. Using the method of differential thermal analysis and IR spectroscopy, it is shown that the combined use of fly ash and superplasticizer leads to a change in hydration processes, the binding of portlandite with the formation of an additional amount of calcium hydrosilicates.
On the issue of ensuring reliability of reinforced concrete structures of “northern execution”
Authors: Pinus B I 
Published: July 2020

Abstract
The work is devoted to the design justification of the required resource of bearing capacity of bent reinforced concrete elements of “northern execution” based on ensuring the required reliability at the time of exhaustion of the frost resistance of concrete. The dynamic model of functioning of structure in severe climatic conditions is considered as a set of static tests at individual stages of cyclic temperature and humidity effects (FTC) formed on the basis of corresponding experimental samples of strength and deformability of concrete. For the criterion for reliability of structure, it is taken the value of strength and deformability of concrete, at which its bearing capacity over a normal section has a probability of at least 99.7%. Using graphic-analytical modeling, limit (failure) values were established and correction of the normative dependency by introducing a differentiating coefficient of reliability, accounting for the level of reinforcement and design negative air temperature, was proposed. The technical and economic unreasonableness of excessive, more than 80% of the boundary, reinforcement of normal sections of bent reinforced concrete elements of “northern execution” is established.
Main achievements and directions of scientific research in the field of foundation construction on sites composed of permafrost in the Russian Federation
Authors: Rozina V E , Komarov A K 
Published: July 2020

Abstract
Construction in the northern construction-climatic zone associated with the solution of complex engineering problems. This is primarily the monitoring of the temperature state of the cryolithozone, which depends on a combination of climatic, engineering-geological, hydrogeological, environmental and technogenic factors. This is even more relevant in connection with the fact of degradation of permafrost. Generalized and classified technical solutions for the construction of foundations of buildings and structures built on the I and II principles. At the same time, technical audit of design solutions and scientific support during the entire life cycle of objects is required. In order to improve and implement the progressive direction in foundation construction, variants of design solutions for self-cooling freestanding columnar foundations of factory production are proposed and the work schedule is detailed.
The elastic modulus for ash and slag mixtures reinforced with inorganic binders
Authors: Slobodchikova N , Rudykh A 
Published: July 2020

Abstract
The article analyses applications of waste produced by thermal power plants and used by the road construction industry. One of the promising areas for the use of ash and slag materials is their reinforcement with inorganic binders and using for the construction of pavement. The Russian regulatory documents governing the use of ash and slag materials have several drawbacks, including the lack of recommendations for determining the elastic modulus for bases and coatings made from ash and slag mixtures reinforced with an inorganic binder in laboratory conditions. The lack of these recommendations does not allow the selection of the mixture with specified design values of the elasticity modulus. It makes it difficult to ensure required values of the modulus of elasticity in the construction of road pavement. The authors developed a method for determining the elasticity modulus in laboratory conditions in order to produce materials with specified values of the elasticity modulus and improve quality of design and construction of road pavement from ash and slag mixtures reinforced with inorganic binders.
Perfection of technology for manufacture of heating units on the base of mica and glass
Authors: Zhytov V G , Shishelova T I 
Published: July 2020

Abstract
Implementation of energy saving programs, reduction of energy consumption for heating and development of efficient heating systems is a challenge. The use of resistive mica-and glass-based heaters (SKENs) is thought to be a perspective trend in this area. It is a heater of new generation that has no analogues abroad. Objective of the paper is enhancement of technologies for manufacture of resistive heaters on the base of mica and glass for improving heater’s performances. Consideration is given to development of new compositions of charge material and to treatment of its surfaces. Results of study. Technology for manufacture of SKENs with high mechanical strength and low water absorption that are widely used in different areas of building industry has been developed on the base of experimental studies and scientific generalizations.
Comprehensive optimization of water supply and sanitation systems
Authors: Chupin R V , Maizel I V , Maizel I G 
Published: July 2020

Abstract
Annotation. Because of the uneven distribution of water resources across the territory of our country, many localities and even cities do not have their own sources of water supply and reservoirs where it would be possible to discharge treated wastewater. To solve this problem, group and district water supply and sanitation systems are being designed, built and developed. The length of such systems is hundreds or even thousands of kilometers, and they include many pumping stations, regulating tanks, storage ponds, local and centralized treatment facilities. Significant financial investments are required annually for the construction and operation of such structures [1-6]. Therefore, the choice of routes, structure of structures, ways of transporting water and waste water, justification of the location of water intakes, treatment facilities are relevant and require special attention and technical and economic analysis of design options. The paper proposes a comprehensive approach to optimizing the structure of structures and methods for supplying water to consumers and transporting waste water to treatment facilities on the basis of the redundant design methods.
Assessment of suburbanized areas transport demand: case study of the Irkutsk Agglomeration
Authors: Zedgenizov A V , Solodkiy A I , Efremenko I 
Published: July 2020

Abstract
The article deals with the issues of transport services for suburbanized areas. The significance and topicality of the research are demonstrated. Various solutions to this problem in different parts of the world are described. Currently, the wealthiest strata of society are striving to obtain a higher quality of life due to the permanent residence in the suburbs which gives rise to the demand for daily commuting between the city and its suburbs. In the article this issue is developed within the context of creating a toolbox for quantitative assessment of suburbanized areas influence on the road network load, first of all, on the load of sections providing commuting between suburbanized areas and the city. The article details the sequence of selecting individual gated communities within the transport accessibility zone of the Irkutsk agglomeration; besides, the article presents a sample study of one gated community aimed at determining the number of entrances and exits. Besides, there are results of the regression-correlation analysis that allows determining an empirical dependence making it possible to estimate suburbanized territories transport demand according to their areas.
On the development of a united digital platform in the construction industry
Authors: Kudryavtseva V A , Vasileva N V 
Published: July 2020

Abstract
Currently, in the the world economic system, company development models are transforming. One of such transformations is active development of digitalization, which contributes to the system development and implementation of digital technologies. At the same time, digitalization is being implemented into different spheres of human life - government, economy, industry, education, construction, etc. Today the construction industry has a sufficient number of information and communication technologies which are the basis for creating digital (volumetric) models of buildings, correcting projects and managing the processes of construction and maintenance of buildings during their life cycles, including managing the engineering infrastructure of capital construction objects. The main task of digitalization of the construction industry is to create a united digital platform.
Difficulties in transforming the construction industry under the digital economy
Authors: Timchuk O G , Evloeva M V 
Published: July 2020

AbstractSolving key tasks of economic growth and increasing the level of social responsibility of the construction industry require the use of the scientific and technical potential, implementation of long-term innovative development plans and programs, transformation of external conditions of investment and construction activities, adaptation of the construction management system to the digital economy. In this regard, management of structural elements of the construction industry and digitalization of the construction industry are crucial. The relevance of the research issue is due to the fact that in modern conditions, the innovative potential of construction companies is a key factor contributing to competitiveness in the market and transition to the digital economy. The object of research is construction companies operating within the market economy. The subject is organizational and economic relations taking shape in the process of development of the construction industry under the digital economy. The authors considered the problems of transition of the construction industry to the digital economy, analyzed the construction industry, and proposed their own definition of the digital economy in the construction industry. The factors that impede the development of the construction industry were described taking into account modern aspects of economic development, which makes it possible to identify areas of construction business management under the digital economy. The competences of an employee of the construction company in the context of the digital transformation of the construction industry were identified. The authors drew conclusions proving the need for the transition of the construction industry to the digital economy
Digital transformation of the Russian construction industry
Authors: Turkova V N , Archipova A N , Fedorovna Z G 
Published: July 2020

Abstract
Construction is an impactful industry and like everything impactful, it has to evolve with the needs and demands of the modern day consumers. The article is devoted to the analysis of the current state and prospects of development of digital technologies in construction. The fundamental concepts of digital economy, digital production and digital technologies are introduced; a peculiar “evolution” of the design process in construction is described (transition from so-called “paper-based” technologies to computer aided design systems and further to information modeling of construction objects). Construction technologies solutions and apps for the construction industry have significant growth potential, and we can nurture a cohort of new digital technology firms by supporting the development of connections with the construction industry, the broader IT sector, incubators and sources of capital. However, the largest scale impact is likely to be realised through effective implementation of BIM with the support of digital technology. Among the very topical issues raised in the article we should also highlight BIM - a fundamentally new approach in architectural and construction design, which includes creation of a computer model of a new building (structure), which carries all the information about the future of the object and is an instrument of control over its life cycle. Given the rapid pace at which new technologies and innovations are being developed, the specialization in Digital Technologies in Construction prepares graduates for the imminent, exciting and necessary, wide-scale digital transformation of the construction industry. Courses include Digital Technologies for Civil Engineering, BIM and 5D Planning, Technology and Innovation in Road Construction, Simulation and Optimization of Construction Processes and Construction Supply Chains and Digitization.
Development of a system for monitoring environmental parameters of cities and open areas
Authors: Belousov R , Nikolaev A , Fiskin E , Fiskina M 
Published: July 2020

Abstract
This article is devoted to the development of a system for monitoring the state of the ecological environment. The system under development should provide ongoing monitoring of environmental air parameters, both in open areas and in the city, and is designed to timely detect excess concentrations of hazardous substances in the air. A distinctive feature of the created system is high productivity at low economic costs per accounting point. An appropriate selection of the component base and software optimization of the operation algorithms will allow to achieve the maximum data transmission distance over a distance of up to 100 km in an open area. Interim results on the development of a monitoring system are presented, planned tasks for this year are indicated.
Urban reorganization and development of Baikal macro-region
Authors: Kolesnikov A 
Published: July 2020

Abstract
One of the most important areas of spatial development of Russia is the innovative development of the territories of the constituent entities of the Russian Federation, which is reflected in the main documents of strategic planning - the forecast of socio-economic development of the Russian Federation for the period until 2030 [1]; Strategies for the innovative development of the Russian Federation for the period until 2020 [2]; Federal Law “On Territories of Advancement of Socio-Economic Development in the Russian Federation” [3].With the formation of the Baikal macro-region, which includes the Irkutsk region, the Republic of Buryatia and the Trans-Baikal Territory, the role of the natural territory of Lake Baikal becomes the cornerstone. Without understanding the resettlement tasks in this area of Lake Baikal, it is impossible to implement the package of measures provided for by the Law on the Protection of Lake Baikal of May 1, 1992 No. 94-ΦD3 [4] and the Federal Target Program “Protection of Lake Baikal and the Socio-Economic Development of the Baikal Natural Territory for 2012-2020” [5]. Determination of the basic principles of the organization of urban planning systems in the Baikal and Trans-Baikal regions, and, above all, in their systemic core, the Baikal Natural Territory, is an extremely urgent urban planning problem..
Development of technologies for improving the water resources of contaminated areas using plants
Authors: Vasilevich E 
Published: July 2020

Abstract
The article provides an overview of relevant phytotechnologies for improving water resources and wastewater, and indicates the regulatory framework for the best available technologies. Attention is paid to the significance of the natural processes of biodegradation of water and wastewater pollution, the most studied plants and trees used for the decontamination of pollution in water and soils are highlighted. The emphasis is placed on the correct selection of plants for the effect of reducing the toxic effects of individual or total pollutants, as well as phytostimulation of the local soil microflora by plants to intensify the processes of self-cleaning of polluted environments. The experience of studying the work of plants in various climatic conditions, including sharp continental ones, helps to expand the capabilities of this method and solve problems of improving reservoirs and territories at a minimum cost.
Contemporary perspective of energy efficiency: essentials, content, challenges, implementation in the Russian Federation
Authors: Bezrukikh O A , Yu Gorbachevskaya E , Sivtseva N G 
Published: July 2020

Abstract
Natural resources conservation and sustainable living have become important issues worldwide. Among natural resources, energy is one of the important prerequisites for sustainable development. Therefore, in order to meet the high demand for energy, it is necessary to bring its sustainable consumption to the forefront of the development strategy of construction industry. The construction sector development in the Russian Federation is largely determined by national projects whose main goal is to provide citizens with comfortable and affordable housing. The national program announced by the government can be successfully implemented by the means of energy-efficient technologies usage, in particular, while building low-rise housing.