Innovational Construction Materials of LLP “EcostroyNII-PV” Production

2021 ◽  
Vol 410 ◽  
pp. 806-811
Author(s):  
Kapar Sh. Aryngazin ◽  
Alexey V. Bogomolov ◽  
Askar K. Tleulessov
Keyword(s):  
Power Plants ◽  
Thermal Power ◽  
Construction Materials ◽  
Electric Power Industry ◽  
Steelmaking Slag ◽  
Alumina Production ◽  
Building Products ◽  
Operational Characteristics ◽  
Ash And Slag Waste ◽  
Slag Waste

The article discusses the experience of recycling industrial waste from the electric power industry and metallurgy. Based on the experience of Ecostroy NII-PV LLP. The proposed technology for manufacturing building products from ash and slag waste provides innovative compositions of raw mixtures. What provides an increase in operational characteristics and labor productivity in construction. The applied technology, in comparison with the existing analogues, provides for the use of local waste (ash and slag waste from the combustion of Ekibastuz coal, bauxite sludge from the Pavlodar aluminum plant, steel-making slags), differing in chemical and granulometric composition. as well as binding properties from other analogs and prototypes. In the manufacture of building products introduced mixture, including, wt %: slag Portland cement - 14.32-17.00; sand - 18.74-25.52, crushed stone - 46.50-49.71, sludge from alumina production obtained during the recycling of bauxite from Kazakhstan - 5-7; self-disintegrating steelmaking slag - 5-7; ash and slag waste from thermal power plants from burning Ekibastuz coals - 5-7. According to the test results, the average tensile strength of building products (paving slabs, curbs, hollow bricks) is 3.2 - 3.8 MPa (strength class V2.5).

Composite Сarbonaceous Сoal-Water Suspensions

2021 ◽  
Vol 1045 ◽  
pp. 212-225
Author(s):  
Olena Svietkina ◽  
Kostiantyn Bas ◽  
Sergiy Boruk ◽  
Roman Klishchenko ◽  
Oleksandr Yehurnov ◽  
...  
Keyword(s):  
Power Plants ◽  
Statistical Data ◽  
Main Type ◽  
Thermal Power ◽  
Electric Energy ◽  
Oil Refining ◽  
Thermal Power Plants ◽  
Water Suspensions ◽  
Ash And Slag Waste ◽  
Slag Waste

In Ukraine, up to 75% of all electricity is supplied by thermal power plants, the main type of fuel for which is coal, which leads to the release of ash and slag waste at power plants in huge quantities. Every 10 years (according to statistical data) the amount of ash and slag produced at thermal power plants doubles. The use and creation of new modified consumers of coal-water fuel (CWF) and coal-water suspensions (CWS) occurs periodically. The ease of handling suspensions is captivating: in the energy sector, they can serve as the basis for the effective disposal of numerous accumulated wastes from coal preparation and oil refining, a significant reduction in the consumption of minerals for generating heat and electric energy, and minimizing the effect of heat power engineering on public health and the state of nature.

scholarly journals Use of ash and slag waste of thermal power plants

2019 ◽  
Vol 4 (3) ◽  
pp. 375-391
Author(s):  
Liudmila I. Khudyakova ◽  
◽  
Aleksey V. Zalutskiy ◽  
Pavel L. Paleev ◽  
◽  
...  
Keyword(s):  
Power Plants ◽  
Thermal Power ◽  
Thermal Power Plants ◽  
Ash And Slag Waste ◽  
Slag Waste

scholarly journals Involvement in the economic turnover of ash and slag waste of thermal power plants in the interests of eco-oriented economic development

2020 ◽  
Vol 7 (4) ◽  
Author(s):  
Sergey Pukhov ◽  
Svetlana Kiseleva
Keyword(s):  
Economic Development ◽  
Waste Management ◽  
Power Plants ◽  
Negative Impact ◽  
Thermal Power ◽  
Integrated Approach ◽  
Thermal Power Plants ◽  
Ash And Slag Waste ◽  
The Russian Federation ◽  
Slag Waste

The article is devoted to the problem of reducing environmental pollution from ash and slag waste and obtaining benefits from their use in the national economy. The main aspects of the negative impact of ash and slag waste on the environment are considered. The use of ash and slag materials in the economy of Russia and foreign countries is characterized. The main problems in the waste management system in the Russian Federation, which impede the wider involvement of waste from thermal power plants in economic circulation, are identified. In the interests of reducing the negative impact of waste from thermal power plants on the environment and their more active involvement in the economic turnover, the most promising directions in this area have been identified. The current trends in the development of ash and slag waste management and the problems in this area are highlighted. The authors proposed to use an integrated approach to the waste management of thermal power plants, which covers various areas of technological activity and takes into account production, economic, environmental and other factors. The article presents a set of factors developed within the framework of the proposed approach that stimulate and hinder the development of projects in the field of waste management of thermal power plants. A set of indicators is proposed for analyzing projects (measures, programs) for the waste management of thermal power plants in the Russian Federation, reflecting commercial, environmental, socio-economic, legal interests. An approach and methodological basis for comparing alternative technologies (projects) for the treatment of waste from thermal power plants and selecting the most efficient are proposed. An algorithm for using an integrated approach to waste management of thermal power plants in the interests of sustainable economic development is proposed. The main provisions and conclusions of the study can be used in the practical activities of the fuel and energy complex, and can also serve as material for training specialists in the field of waste management and ensuring the environmental safety of the fuel and energy complex.

scholarly journals INFLUENCE OF THE OPTIMAL GRAIN COMPOSITION OF AGGREGATE ON THE MAIN PHYSICAL AND MECHANICAL PROPERTIES OF FINE-GRAINED CONCRETE

2020 ◽  
pp. 151-157
Author(s):  
M.A. Dzhusupova ◽  
A. Talantbek kyzy
Keyword(s):  
Power Plants ◽  
Fractional Composition ◽  
Thermal Power ◽  
Physical And Mechanical Properties ◽  
Grain Composition ◽  
Fine Grained ◽  
Ash And Slag Waste ◽  
Slag Waste ◽  
Rational Composition ◽  
Artificial Origin

The article is devoted to the study of the possibility of reducing the consumption of cement in concrete by optimizing the fractional composition of small aggregates of natural and artificial origin and the use of ash and slag waste of thermal power plants. Using the computer program of the grain composition correction module allows you to quickly determine the rational composition of sand and ensure tight packaging of its grains in concrete. In addition, optimal quantities of hyperplasticizers were selected to produce concrete with the required physical and technical characteristics.

scholarly journals Modern trends in the development of the construction industry in the production of building materials

Technobius ◽  
2021 ◽  
Vol 1 (3) ◽  
pp. 0003
Author(s):  
Aliya Aldungarova ◽  
Kapar Aryngazin ◽  
Vladimir Larichkin ◽  
Assem Abisheva ◽  
Kamilla Alibekova
Keyword(s):  
Compressive Strength ◽  
Construction Industry ◽  
Power Plants ◽  
Building Materials ◽  
Moisture Absorption ◽  
Thermal Power ◽  
Thermal Power Plants ◽  
Ash And Slag Waste ◽  
Slag Waste ◽  
Construction Product

The paper describes the technology of manufacturing a construction product by vibrocompression using ash and slag waste from thermal power plants in the Pavlodar region. The task of the experimental research was to obtain a hollow wall stone based on ash and slag waste with a strength grade that is not inferior to products made according to the traditional recipe. The obtained samples with different ratios of components in the mixture were investigated for compressive strength, moisture absorption, frost resistance. It has been established that when ash and slag waste are added to the composition of the concrete mixture in an amount of up to 35 % of the mass of dry components, the strength characteristics of the hollow wall stone correspond to the selected brand

Ash-Slag Waste of the Coal-Fired Thermal Power Plant as a Resource for the Construction Industry

2021 ◽  
Vol 1038 ◽  
pp. 290-295
Author(s):  
Viktor Kolokhov ◽  
Lina Moroz ◽  
Andrey Romin ◽  
Volodymyr Kovregin
Keyword(s):  
Power Plant ◽  
Power Plants ◽  
Raw Materials ◽  
Thermal Power ◽  
Metallurgical Industry ◽  
Ash And Slag Waste ◽  
Technical Properties ◽  
Concrete Materials ◽  
Slag Waste ◽  
Wide Potential

The article presents a study of the physical and technical properties of ash and slag waste Coal Power Plant. The main problem when using ash-slag mixtures is the variability of the particle size distribution of the material. Determining the characteristics of slag stored in the dumps of thermal power plants will help to choose the separation methods of this material, to address the disposal and accumulation of industrial waste, to expand the scope of their application. The obtained research results of physical and technical properties of waste of the Coal TPP testify to wide potential in the further use in many branches of the industry. Possible applications include fillers for concrete, materials for sandblasting (abrasive material), raw materials for the metallurgical industry, additives for the manufacture of binders, etc.

Ensuring Strength of Fine Grained Concrete with Mixed Cement Binders

2020 ◽  
Vol 864 ◽  
pp. 134-140
Author(s):  
A. Abdykalykov ◽  
M. Dzhusupova ◽  
Nadia Antoniuk ◽  
Aidai Talantbek Kyzy
Keyword(s):  
Statistical Models ◽  
Power Plants ◽  
Thermal Power ◽  
Strength Properties ◽  
Optimal Concentration ◽  
Thermal Power Plants ◽  
Fine Grained ◽  
Ash And Slag Waste ◽  
Preliminary Activation ◽  
Slag Waste

The article presents the results of the evaluation of the strength of fine-grained concrete of ordinary grades on mixed cement binders with ash and slag waste of thermal power plants. To ensure the required strength, the preliminary activation of the mixed binder was envisaged, which is one of the main techniques for reducing cement consumption. Experimental-statistical models of the strength properties of fine-grained concrete was obtained, which make it possible to predict the required strength with a minimum consumption of cement and the optimal concentration of ash in the binder.

scholarly journals Determination of dependencies of dehydration of thermal power plants’ ash and slag waste from equipment parameters

2019 ◽  
Vol 109 ◽  
pp. 00015
Author(s):  
Valentyna Cholyshkina ◽  
Serhii Kostyria
Keyword(s):  
Power Plants ◽  
Thermal Power ◽  
Raw Material ◽  
Thermal Power Plants ◽  
Regression Equations ◽  
Processing Technologies ◽  
New Device ◽  
Ash And Slag Waste ◽  
Nonlinear Character ◽  
Slag Waste

Complex processing of ash and slag from coal-fired thermal power plants attracts a lot of attention. Waste processing will reduce the load on existing storage facilities, to return unburned coal to the boilers of power plants, to obtain a valuable raw material resource for construction, ferrous and non-ferrous metallurgy. At all thermal power plants of Ukraine utilization and storage of ash and slag is carried out by hydraulic method. Therefore, for all processing technologies relevant the dehydration of fine-disperse raw material. The article presents the results of laboratory tests of a new device for dehydration of ash and slag waste. It uses a set of influences on raw material: the overlay of vibration oscillations, the electric field and vacuumizing. By the method of pair linear correlations it is obtained that the dependence of moisture on each of the variable parameters has a weak nonlinear character. The exact and approximate multiple regression equations for the practical assessment of moisture under the combined action of all variable factors are obtained. With the size of the raw material + 0.63 – 0.05 mm, it allows to reduce the moisture from 30 to 9 %.

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