Using of Ash and Slag from Power Plants for Embankments Construction

Marjanović, Miloš; Pujević, Veljko; Jocković, Sanja

doi:10.1007/978-3-030-19756-8_83

Cited by 2 publications

(2 citation statements)

References 3 publications

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“…для встановлення строків подальшої експлуатації теплоенергетичних комплексів застосовуються методи візуальних обстежень пошкоджень градирень та димових труб із використанням без пілотних літальних апаратів, моделювання напружень та деформацій в їх конструкціях методами скінченних елементів (Castiglioni et al, 2017). розробляються питання щодо рекультивації та використання територій золовідвалів для розміщення на них легких та важких конструкцій, а також використання золи та шлаку як будівельних матеріалів (Parhi et al, 2019(Parhi et al, , 2020Marjanović et al, 2020). жорсткісні властивості цих відкладів визначаються методами сейсмічної розвідки.…”

Section: аналіз сучасних дослідженьunclassified

Engineering-Geological and Geoecological Problems of Heat Power Complexes on Urban Areas

Kril¹,

Demchyshyn²

2021

Geol. ž.

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The impacts of thermal energy plants on the geological environment include the chemical pollution of groundwater and soils, changes in their physical and mechanical properties, and the induction of thermal, vibrational, and electromagnetic fields in the soil bases. The aim of the research is to determine geological hazards in large cities, where thermal powerplants and combined heat and power plants are located. The objects of research were soil foundations, buildings ofthermal power plants of industrial and urban agglomerations of Kyiv, Kharkiv, Dnipro and Odesa. The following hazardous objects have been identified in the thermal power plants located within the settlements: flue-gas stacks (static load, dynamic influences at significant wind loads, impact on the ecological state); cooling towers and cooling pools(leaks, additional soil moisture); engine rooms (static loading and vibration effects from equipment operation); pipelines(leaks, formation of thermal stresses in soils); ash settlers (environmental impact). The positions of heat power plant objects in relation to the functional zones of the city are analyzed. Description of soil bases is given. It is established that the bases of the thermal power plants buildings are mainly dispersed incoherent (sandy) and weakly cohesive (loess-like)soils. Changes in engineering and geological conditions during the operation of the thermal power plants, which can cause dangerous geological processes and provoke emergency situations, have been assessed. Indicators of criteria for identification of geological hazards when assessing risks during the operation of the thermal power plants are proposed on the basis of engineering-geological processes caused by technogenic factors.

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Section: аналіз сучасних дослідженьunclassified

Engineering-Geological and Geoecological Problems of Heat Power Complexes on Urban Areas

Kril¹,

Demchyshyn²

2021

Geol. ž.

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“…The use of materials from the category of secondary raw materials for the preparation of dry building mixtures partially allows solving the first of the listed problems, leaving open questions related to the expenditure of funds for the processing of these products. In construction, industrial waste is actively used [1][2][3], for example, sand and crushed stone of various chemical compositions from ash and slag after burning solid fuel at thermal power plants (TPP) [4,5]. However, there is a heterogeneity of these slag materials with the instability of their physical and mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Distribution of the components of the building mixture in the presence of secondary raw materials during rotary mixing

et al. 2020

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The purpose of this study is a stochastic description of the distribution of solid dispersed components, including those from secondary raw materials, according to the characteristic angle of scattering ϴij when receiving a construction mixture at the first stage of operation of the rotary apparatus. Two stages of the formation of rarefied flows are assumed: when scattering particles of components by elastic blades of a rotating drum and when interacting with the baffle surface. Modeling method this is energy method of Klimontovich Yu.L. The analysis of the efficiency of the first stage (rotary mixing) is carried out based on the obtained distribution functions of the number of particles of bulk components over the scattering angle, taking into account their physical and mechanical properties and a variety of design and operating parameters of the apparatus. The bulk of the particles of the mixed components are scattered at the initial angles of rotation of the mixing drum, when the deformation of the elastic blades is most significant. This is accompanied by the characteristic first bursts of the obtained distribution curves (ϴij< 0.1 rad) for the number of particles of the tested bulk materials at the given ranges of parameters.

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Using of Ash and Slag from Power Plants for Embankments Construction

Cited by 2 publications

References 3 publications

Engineering-Geological and Geoecological Problems of Heat Power Complexes on Urban Areas

Engineering-Geological and Geoecological Problems of Heat Power Complexes on Urban Areas

Distribution of the components of the building mixture in the presence of secondary raw materials during rotary mixing

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