Designing of special concretes for machine building

Fediuk, Roman; Svintsov, Alexander P.; Lesovik, Valery; Pak, A A; Timokhin, Roman

doi:10.1088/1742-6596/1050/1/012026

Cited by 4 publications

(3 citation statements)

References 3 publications

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“…Modern standards rather strictly regulate the types of materials, depending on the types of pumping equipment used. Pump elements that have direct contact with an aggressive liquid are practically not made of gray cast iron, since it is not resistant to aggressive liquids, as a result of which there is a rapid destruction of metal and frequent replacement of elements is required, which worsens the reliability of the pump and increases operating costs [3,4]. For pumping corrosive liquids, materials with the required strength and resistance against corrosion and erosion are used, as well as special alloys that can withstand high temperatures of the pumping liquid.…”

Section: Introductionmentioning

confidence: 99%

Efficiency of application of fiber concrete as a material for manufacturing bodies of centrifugal pumps

et al. 2021

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The report presents the results of research on the use of composite material - fiber-reinforced concrete for the manufacture of centrifugal pump bodies. The, optimal composition of fiber-reinforced concrete with the required strength characteristics has been established. The method of casting a pump body and the results of industrial tests to determine the technological parameters of a centrifugal pump are presented. The results obtained showed that fiber-reinforced concrete bodies have an advantage over metal ones and can be recommended for use in mechanical engineering in the manufacture of centrifugal pump bodies.

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Section: Introductionmentioning

confidence: 99%

Efficiency of application of fiber concrete as a material for manufacturing bodies of centrifugal pumps

et al. 2021

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“…Thus, the concrete matrix has lower bending tensile strength and is apt to microcracks formation. Modern research is aimed at improving physical-mechanic characteristics of materials by introducing mineral modifiers and additives of different composition and nature [1][2][3][4][5][6][7][8][9]. However, hardening the base cement matrix by additives does not allow increasing composite bending strength.…”

Section: Introductionmentioning

confidence: 99%

Peculiarities of Structure Formation in System "Cement - Basaltic Fibre"

Nelubova¹,

Babaev²,

Popov³

et al. 2018

Proceedings of the International Symposium “Engineering and Earth Sciences: Applied and Fundamental Research” (ISEES 2018)

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“…Цементные материалы, в частности бетоны, являются самыми распространенными материалами в строительстве, а их производство наиболее крупнотоннажным в своей отрасли. Приоритетным направлением в строительной индустрии является создание строительных композитов с новыми свойствами [1][2][3][4]. В связи с этим, применение бетонных изделий в качестве носителей фотокатализаторов, с целью снижения концентрации загрязняющих веществ в атмосфере является целесообразным и обоснованным.…”

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Photocatalytic Active Self-Cleaning Cement-Based Materials. Compositions, Properties, Application

Antonenko

Ogurtsova

Строкова

et al. 2020

Bulletin of Belgorod State Technological University Named After. V. G. Shukhov

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The paper reviews the available technologies for producing photocatalytic active self-cleaning materials based on cement, including concretes and dry building mixtures. Used photocatalytic additives and their influence on the cement system are considered. The applied methods for assessing the photocatalytic activity of self-cleaning cement materials are presented. The compositions of concrete mixtures, their properties, areas and prospects of application are analyzed. The main problems of development, production and application of photocatalytic active self-cleaning materials based on cement are presented. The main directions to increase the self-cleaning ability of photocatalytic active materials based on cement are: optimization of the microstructure of the photocatalyst and the composite with its use in the direction of creating a developed surface of the photocatalyst - hierarchical microstructure; it intensifies the diffusion processes of photocatalytic reaction reagents and increases the contact area photocatalyst with a pollutant; it absorbs and accumulates ultraviolet radiation waves; optimization of the phase composition of titanium dioxide - search for the ratio of the anatase and rutile phases, at which the maximum photocatalytic activity is achieved; choosing of economically feasible method for periodical updating of the surface of concrete products carbonized during operation in order to restore self-cleaning ability.

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Designing of special concretes for machine building

Cited by 4 publications

References 3 publications

Efficiency of application of fiber concrete as a material for manufacturing bodies of centrifugal pumps

Efficiency of application of fiber concrete as a material for manufacturing bodies of centrifugal pumps

Peculiarities of Structure Formation in System "Cement - Basaltic Fibre"

Photocatalytic Active Self-Cleaning Cement-Based Materials. Compositions, Properties, Application

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