Interior Acoustic Materials and Systems

Zhukov, Aleksey; Shokodko, Ekaterina; Bobrova, Ekaterina; Bessonov, Igor; Dosanova, Gulzar; Ushakov, Nikita

doi:10.1007/978-3-030-19868-8_72

Cited by 8 publications

(3 citation statements)

References 4 publications

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“…The method of the mathematical optimization was developed at NRU MGSU [16][17][18] and is based on the fact that the obtained polynomials are considered as purely mathematical (analytical) functions of several variables (in this case, three variables), to which the methods of the mathematical analysis are applicable. The method includes two stages at the first, the optimal value of the factor (in this case, Х1), is determined, and at the second, polynomials 1 and 2 are solved with Х1=opt and mathematical functions are obtained in the form optimized for Х1.…”

Section: Discussionmentioning

confidence: 99%

Additive manufacturing technology of concrete products

2023

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The article analyzes the use of 3D-printing technologies in the construction industry. The main trends in the development of this area related to the development of modern software for 3D printers, printer designs and forming extrusion heads of printers, and also to the development of formulations of building mixes used for 3D printing are noted. The relevance of the use of 3D printing technologies using concrete is conditioned by the creation of unique structural elements, objects of landscape gardening architecture or buildings. From the point of view of building materials science, this task includes considering technological factors, and, in particular, the requirements for the concrete mixture. The special attractiveness of these technologies is associated with the possibility of carrying out work on a construction site, with a high degree of mechanization of processes and with an increasing of labor productivity when performing construction and installation work. The purpose of the research described in the article is to develop a methodology for the selection of modifying additives and reinforcing fibers from the condition of obtaining products with the maximum coefficient of structural quality. The article outlines the features of the selection of the composition of concrete for the construction 3D printing. This mixture must have sufficient mobility for pumping it through pipes, set quickly and have good strength characteristics.

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Section: Discussionmentioning

confidence: 99%

Additive manufacturing technology of concrete products

2023

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“…The experiment to assess the influence of the gypsum polymer composition on its properties was carried out according to the general methodology for planning the experiment and analytical optimization of its results [15][16][17], based on the matrix of a full quadratic three-factor experiment. The resulting regression equations were tested against all statistical hypotheses.…”

Section: Methodsmentioning

confidence: 99%

Gypsum polymer materials in construction

et al. 2021

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The modern level of technological development involves the use of traditional materials modified with additives of various types and functional purposes, as well as composite materials allowing to obtain a product with improved properties. Expanding the area of application of products based on gypsum for facade systems involves the creation of weather-resistant, and, first of all, waterproof materials based on gypsum polymers. The purpose of the experiment, the results of which are presented in the article, was to assess the possibility of using polycondensation polymers as a component of gypsum polymer, to model the properties of the material and to evaluate its characteristics as a result of climatic and humidity influences. The modeling and optimization of gypsum polymer properties were based on statistical methods as well as methods of mathematical analysis of functions of several variables. The assessment of the water resistance of gypsum polymer samples was carried out under test conditions in an open reservoir with an almost unlimited reaction capacity of the medium. The weather resistance was checked according to the results of tests in a climatic chamber. Experiments have shown that the strength of samples with 20% modified melamine-formaldehyde resin in compression and in bending for 80 days of storage in air increases by 30% and 25%, respectively. The compressive strength is 60 MPa, and the flexural strength is 12 MPa. Gypsum polymer has high frost resistance up to 150 cycles of alternate freezing and thawing. The result of the research was the confirmation of the possibility of using polycondensation resins and the foundations of the method for selecting the composition of the gypsum polymer were developed. The results obtained can be used in the development of the technology of gypsum polymer products, and, in particular, piece products (building cladding tiles).

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“…FarEastCon -Materials and Construction III Such a function can be studied using any methods of mathematical analysis, including optimization methods and finding local extrema of such a function. The technique was tested in the study and optimization of formulations and technologies of various building materials for various purposes [19,20].…”

Section: Methodsmentioning

confidence: 99%

Filled Heat Efficient Ceramics

Zhukov

Popov

Bessonov

et al. 2021

KEM

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The increase of thermo-physical properties of masonry made of ceramic burnt products is possible through the use of heat-efficient ceramics and, in particular, porous building tiles. The use of combustible additives or foaming technology is related to increased energy costs and difficulties in obtaining products with uniformly distributed porosity.The analysis of the state of the technology of ceramic materials made it possible to formulate a research hypothesis according to which the use of a porous non-combustible additive in the composition of ceramic masses, on the one hand, will make it possible to obtain materials with a lower density compared to traditional ceramic products, and, on the other hand, will allow the use of hard mixtures with reduced water content, and therefore significantly save the cost of drying products, while increasing the uniformity of the porous ceramic crock.The purpose of the research was to develop recipes for ceramic porous products and to develop modes of their burning. The use of crushed foam glass as a lightweight non-burning and exhausting additive, on the one hand, made it possible to use tough ceramic mixtures (with a water content not exceeding 18%), and, on the other hand, to use more rigid and shorter drying modes, which also reduced the energy and material consumption of the technology.The most energy-intensive burning process was optimized by the methods of mathematical planning and processing of experimental results. The average density of crushed foam glass (140–150 kg/m3), optimal for the burnt product, was established, and also, as a result of analytical optimization and interpretation of the experimental results, dependencies that allow choosing parameters and evaluating product properties depending on foam glass consumption and burning temperature were obtained.

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Interior Acoustic Materials and Systems

Cited by 8 publications

References 4 publications

Additive manufacturing technology of concrete products

Additive manufacturing technology of concrete products

Gypsum polymer materials in construction

Filled Heat Efficient Ceramics

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