##tihuan2##Influence of different sources of coal gangue used as aluminosilicate powder on the mechanical properties and microstructure of alkali-activated cement September 2019 Materiales de Construcción ...
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##tihuan2##DOI: 10.1016/j.conbuildmat.2024.136601 Corpus ID: 269853807; Performance analysis of self compacting concrete by incorporating fly ash, coal gangue powder, cement kiln dust and recycled concrete powder by absolute volume method
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##tihuan2##DOI: 10.1016/J.JMRT.2021.08.106 Corpus ID: 239696894; Performance of microwave-activated coal gangue powder as auxiliary cementitious material @article{Guan2021PerformanceOM, title={Performance of microwave-activated coal gangue powder as auxiliary cementitious material}, author={Xiao Guan and Jixi Chen …
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##tihuan2##Lack and quality decrease of supplementary cementing materials (SCMs) such as fly ash and granulated blast-furnace slag is increasingly prominent in China. Thus, the use of coal gangue (CG) and coal gasification slag (CGS) as SCMs in concrete attracted more researcher's attention. This paper investigated the mechanical strength, …
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##tihuan2##Coal gangue produced in the process of coal mining accounts for about 10% ∼ 25% of the total [1]. With the increase of coal mining volume year by year, the coal gangue produced by coal mining ...
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##tihuan2##Using coal gangue (CG) as a building material does not only reduce the disposal of industrial waste and promote the resource utilization of solid waste, but also …
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##tihuan2##To gauge the feasibility of using coal gangue for geotechnical and geoenvironmental applications, comprehensive characterization study was performed …
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##tihuan2##Coal gangue (CG) and fly ash (FA) buildup and storage pose significant environmental and human health issues.Thus, enhancing their use in several applications has gained widespread attention.
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##tihuan2##Therefore, coal is still con-sidered to be one of the major open energy structures [2 –4]. Coal gangue (CG) is a waste discharged in the process of coal mining and coal washing. CG usually has a low carbon content and is harder than coal, and its caloric value is too low to be used as fuel coal, accounting for about 10%–20%
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##tihuan2##To achieve environmental sustainability and improve material characteristics, this study examines the performance of self-compacting concrete (SCC) that …
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##tihuan2##Coal gangue is the largest amount of industrial solid waste in China. It caused serious damage to the ecological environment and waste resources. Therefore, it is of great significance to realize the resource utilization of coal gangue, protecting the environment and realizing the sustainable development of society. This paper …
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##tihuan2##The use of uncalcined arenaceous rock coal gangue powder (ACP) instead of fly ash as a siliceous raw material to produce autoclaved aerated concrete (AAC) is a potential method for achieving low energy consumption and high-efficiency utilisation of ACP. The effects and mechanism of the Ca/Si ratio (C/S) on the slurry and physical and …
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##tihuan2##Polyacrylamide after the molecule degradation is used as dispersant and the coal gangue as the raw material to prepare the nanometer Al (OH)3 powder in this paper. Calcining at high temperature to activate coal gangue and controlling the change of C2S crystal were adopted to prepare the self-pulverized material of coal gangue. When the aluminum …
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##tihuan2##FA is a byproduct of the burning of pulverized coal in different coal-based applications, such as electricity production in thermal power plants. Its chemical composition is mostly determined by the mineral content of the coal gangue [14]. Silica ranges from 40 to 60% and alumina from 20 to 30%, with a very wide range of iron content [15].
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##tihuan2##At present, pulverized coal gangue powder can partially or completely replace clay in . cement clinker production 59, 60. In fact, the main problem with the use of coal gangue in .
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##tihuan2##Exploiting the use of the soil remediation effects of coal gangue and modified coal gangue will help further improve the comprehensive utilization value of …
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##tihuan2##1. Introduction. Currently, coal is still one of the main energy sources in many countries. According to statistics, the consumption of coal in the world in 2015 was 550 million tons, accounting for more than 19% of the world's primary energy (Li and Wang, 2019).However, coal gangue (CG) is a solid waste discharged during coal mining and …
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##tihuan2##Coal gangue (CG) is an environmental waste that faces an urgent demand for disposal in China. The utilization of CG in construction materials has broad application prospects and gained increasing interest. However, the poor compatibility of polycarboxylate superplasticizer (PCE) with CG powder hinders its efficiency in a wide …
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##tihuan2##Coal gangue (CG) is a type of industrial solid waste produced by the process of coal excavation and separation 1,2,3. Generally, one ton of CG is discarded for every 10 tons of produced coal 4, 5 .
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##tihuan2##The effects of oxygen concentration, particle size, and heating rate on the coal combustion characteristics under an O2/CO2 atmosphere were investigated. The results indicated that the oxygen concentration played the most important role. As the oxygen concentration increases, the ignition and burnout temperatures decrease and …
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##tihuan2##Although the calcination-based activation of coal gangue is important for its valorization in the form of cementitious materials, the related works mainly focus on high-quality coal gangue, neglecting its low-quality counterpart. To bridge this gap, we herein conducted the pilot-scale suspension calcination of low-quality coal gangue; explored …
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##tihuan2##The diffusion and flow laws of coal gangue slurry under the same inclination angle were summarized, and the field test of fluidization filling in the caving areas was …
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##tihuan2##According to the data in Table 1, the main components of CG are SiO 2, Al 2 O 3, Fe 2 O 3, CaO, SO 3, etc.The components of SiO 2, Al 2 O 3 and Fe 2 O 3 in the raw materials account for 74.29 % of the raw materials, and the CG raw materials contain 0.039 % carbon. Combined with the XRD pattern of CG shown in Fig. 2, and be compared with …
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##tihuan2##DOI: 10.1016/j.fuel.2023.128185 Corpus ID: 257948090; Utilization of coal gangue power generation industry by-product CFA in cement: Workability, rheological behavior and microstructure of blended cement paste
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##tihuan2##Coal gangue is one of China's main industrial solid wastes, which contains various harmful heavy metal elements, such as lead (Pb). The long-term accumulation of coal gangue causes Pb to migrate to the surrounding environment due to weathering and rain erosion, eventually endangering human life and health with its continuous …
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##tihuan2##Abstract. Among coal mining-related wastes, coal gangue (CG) is the heterogeneous waste generated during the mineral processing or coal washing phase …
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##tihuan2##Coal gangue and aluminum ash emerge as quintessential constituents within the ambit of coal-derived solid waste and industrial residue, respectively. Leveraging coal gangue as a primary substrate and aluminum ash as an adjunct aluminum source, molecular sieves can be synthesized through hydrothermal means. By modulating the …
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##tihuan2##Therefore, the CG was pulverized to a particle size of 20μm after being calcined at 850 ° Cfor2h.TheXRDanalysisof CG following high temperature calcination is shown inFigure 3.
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##tihuan2##Semantic Scholar extracted view of "Co-utilization of spent pot-lining and coal gangue by hydrothermal acid-leaching method to prepare silicon carbide powder" by Jin Xiao et al. ... Emission-to-ash detoxification mechanisms of co-combustion of spent pot lining and pulverized coal. Zih-Sheng Chen Jingyong Liu +5 authors Weixin Li.
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