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Construction and Architecture CONSTRUCTION AND ARCHITECTURE N.P. Lukuttsova, A.A. Pykin, А.А. Baranova HIGH-STRENGTH FINE-GRAINED CONCRETE WITH A MULTICOMPONENT NONIMPREGNATED ALUMINOSILICATE COMPOSITION The physical and technical characteristics (average density, compressive strength and speed of its set, abrasion, water absorption, frost resistance, shrinkage) of high-strength fine-grained concrete for prefabricated buildings and structures, emergency and repair works with the use of multi-component nanoimpregnate (impregnating composition containing multifunctional active nanoobjects) are studied), obtained by the method of cavitation of the suspension and apprecilove aluminosilicate mineral component by plasticizing admixtures-water-reducing and water-repellent surface-active substances (coupling agents). The morphology, chemical and granulometric composition of the initial aluminosilicate component, as well as the parameters of dimension (minimum, average, maximum, effective diameter, polydispersity), aggregate stability (Zeta potential) of the developed nanoimpregnate, including hexagonal plate particles, the average diameter of which is about 50 nm, Zeta potential minus 67 mV, polydispersity 18 %. It is established that nanoimprint allows you to fast-hardening high-strength fine-grained concrete class compressive strength V65, marks of abrasion G1, brand F1300-frost resistant with low shrinkage (1.5 times) and water (1.7 times), to accelerate strength development at an early (2-7 days) time of setting (2.5- 2.7 times). The increase in the physical and technical characteristics of concrete is achieved due to the directed complex effect of the developed nanoimpregnate on the formation of the microstructure of cement stone in the contact zone with the filler due to the additional formation of compacting and strengthening tumors identical to hydroaluminates and calcium hydrosilicates, redistribution of the porosity of the cement matrix in the direction of increasing the number of mesopores with a diameter in the range from 3 to 33 nm with a decrease in the total pore volume by 1.5 times. Keywords: high-strength fine-grained concrete, physical and technical characteristics, the multicomponent nanoimprint, cavitation suspension, the dressing of the cement stone microstructure, macro - and mesopore. A.N. Volotskoy, Yu.V. Yurkin, V.D. Cherkasov, V.V. Avdonin, I.A. Mansurova INFLUENCE ESTIMATION OF PLASTICIZER POLARITY ON DYNAMIC PROPERTIES OF POLYMERIC MATERIALS ON THE BASIS OF ETHYLENE-VINYL ACETATE This article is devoted to the actual problem of the development of damping polymer materials which are effective in a wide range of working capacity. Effectiveness of a vibration damping in a composite is mainly defined by properties of a polymeric matrix, that’s why studying of its properties depending on type and the number of gel-forming parameters is an urgent task. The purpose of this article is to determine the changes in the dynamic properties of the polymer ethylene-vinyl acetate with the addition of plasticizers in it various polarity and concentrations. The leading method to investigate this problem is the method of dynamic mechanical analysis, which allows to obtain information about changes in mechanical characteristics under the influence of dynamic load and controlled temperature. According to the received regularities it was possible to define the plasticizer type significantly reducing glass transition of ethylene- vinyl acetate. The percentage ratio of the ethylene-vinyl acetate plasticizer system is established and, the type of plasticizer at which the maximum of mechanical losses assumes high values is respectively revealed. Degree polarity of plasticizer at which efficiency of plasticizer on ethylene-vinyl acetate the greatest is defined. The received dependences can be used as input data for analytical prediction of dynamic mechanical properties of composites. Keywords: ethylene-vinyl acetate, dioctyl phthalate, chlorinated paraffin wax, industrial oil, mechanical loss tangent, modulus of elasticity, temperature. A.D. Tolstoy, A.I. Krymova THE APPLICATION OF SYNERGETIC PRINCIPLES SELF-ORGANIZATION SYSTEM IN THE THEORY OF HARDENING BUILDING COMPOSITES On the basis of research of hardening high-strength compositions the interrelation between opportunities of synergetic scheme of studying of the phenomena of the nature and questions of management of formation of structure of the stone materials received from rationally picked up construction mixes is shown. The prospects of applying the General principles of synergetics and the concept of sustainable development of open dissipative systems to the material objects of industrial origin, and their understanding as an integral self-regulating non-equilibrium system are considered. This method was implemented using the thermodynamic principle of the Belgian school. In this topic was introduced the concept of "Hacken", for a more detailed understanding of the structure of phase as a state, which appears in the scientific result of coherent (ordinal) flowing behavior of the plural construction of the number of particles, the direction of the concept of dissipative structure hydroxides. Together with the topic of thermodynamic processes were considered types of thermodynamic systems and identify the availability and impact of these systems in our study. The article presents images of the Gibbs energy change. As well as the data table clearly characterizing the change in Gibbs energy and the volume of hydrate reaction products in hardening systems. The main goal was to show that the principles of the development of self-regulating system can be used in the technology of building materials. Also to show that this approach allows itself to carry out the analysis of a condition of the main structural elements of the open metastable system of hardening multicomponent concrete. To identify indicators of the completeness of the processes in a nonequilibrium system with the establishment of a new state of from viscous-fluid to solid, i.e., the transition to a new attractor. Keywords: building production, hardening systems, synergetic approach, correlation of production and natural potentials, balance of nonequilibrium systems. V.I. Tur, V.V. Karsunkin, A.V. Tur, N.I. Kukanov, S.A. Piankov COMPLEX TECHNICAL INSPECTION OF THE BUILDING OF THE V.I. LENIN’S MEMORIAL CENTER IN ULYANOVSK The inspection of the building is caused by the problems that have arisen in operation due to a long period without preventive maintenance and repairs. Geological surveys revealed dangerous factors complicating the operation of the building, namely flooding with underground waters, proximity to the slope of the landslide slope, the presence of a section of karst rocks, weathered marls. A lot of defects of external walls, roofing, engineering networks are revealed, which does not ensure the possibility of safe operation of the facility. The technical condition of the bearing structures of the building - foundations, steel frame structures, reinforced concrete slabs and coatings, meets the requirements for strength and structural stability in accordance with the criteria of the federal law 384-FZ. Recommendations are developed on the possibilities for further operation of the building. Keywords: inspection of load-bearing and enclosing structures, geological and geodetic surveys, design of the frame. A.V. Korgin, V.A. Romanets, V.A. Ermakov, L.Z. Zeyd Kilani PROSPECTS AND PROBLEMS OF USING ALUMINUM ALLOYS IN THE CONSTRUCTION OF BRIDGES IN THE RUSSIAN FEDERATION In the article, authors consider the world experience of using aluminum alloys in the construction and reconstruction of bridges: a bridge over the Saguenay River (Canada), the Riekerhavenburg lift bridge (Netherlands), the Real Ferdinando Bridge (Italy), the Gateshead Millennium Bridge (England) lift bridge, the Qatar pedestrian bridge, the “Kolomenski” Bridge in St. Petersburg and pedestrian bridges in Nizhny Novgorod. Advantages of Aluminum alloys properties over other materials are presented. The authors considered the technology of substituting steel reinforced concrete slabs for carriageway bridges on an aluminum plate, which allows reducing the weight of the structure and significantly increase in the lifting capacity of the reconstructed bridge. In addition to a number of obvious advantages of aluminum bridges, the are factors that do not allow their wide introduction on the territory of the Russian Federation . Current United States and European codes were analyzed. For determining properties of an aluminum alloys a testing program for a series of samples and a full-sized pedestrian bridge a testing program was compiled. The use of aluminum alloys in the construction of bridges is profitable from a commercial point of view, will reduce the impact of maintenance operations on the environment, leading to a minimization of the consumption of materials. Keywords: review, aluminum alloys, construction of bridges, reconstruction, regulatory documentation I.P. Bylin, B.A. Khramtsov, M.V. Bakaras, A.S. Kravchenko, M.A. Korneychuk CONTROL OF THE STABILITY OF THE UNCONSOLIDATED OVERBURDEN DUMPS OF IRON ORE PITS KMA This article is devoted to problems of formation of dump of the loose overburden of iron-ore pits, which are a raw material base of construction in the KMA region. The article considers the relevance of the problem of placement and optimization of the parameters of dumps. It is connected with volume increase in iron ore open way production. There are dumps
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