Results 31 to 40 of about 9,725 (229)

Durability of Concrete With Coal Gasification Slag and Coal Gangue Powder [PDF]

open access: yesFrontiers in Materials, 2022
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.
Xiaoliang Zhu   +3 more
openaire   +2 more sources

Experimental Study on Dynamic Mechanical Properties of Coal Gangue Concrete

open access: yesAdvances in Materials Science and Engineering, 2020
In order to study the static and dynamic mechanical characteristics of the coal gangue concrete used in the mine support structure, the compressive strength test, the drop weight impact test, and the Split Hopkinson Pressure Bar (SHPB) test were ...
Zhishu Yao   +4 more
doaj   +1 more source

Research on Basic Mechanical Properties and Fracture Damage of Coal Gangue Concrete Subjected to Freeze-Thaw Cycles

open access: yesAdvances in Materials Science and Engineering, 2021
In order to study the freeze-thaw damage law of the basic mechanical properties and fracture performance of coal gangue concrete, four kinds of coal gangue concrete specimens with different replacement rates of coal gangue coarse aggregate were designed,
Min Huang, Jingmin Duan, Jiakai Wang
doaj   +1 more source

Mechanical properties and microscopic characteristics of steel fiber coal gangue concrete

open access: yesFrontiers in Materials, 2023
Incorporation of coal gangue in the concrete mixes can realize utilization of the solid waste and reduce extraction/use of natural aggregates. To improve the mechanical properties of coal gangue concrete, this paper studies use of steel fibre together ...
Jiuyang Li   +6 more
doaj   +1 more source

An algebraic approach to modeling distributed multiphysics problems: The case of a DRI reactor [PDF]

open access: yes, 2015
© 2015, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved.This paper deals with the problem of modelling a chemical reactor for the Direct Reduction of Iron ore (DRI).
Boem, F, Ferrari, RMG, Parisini, T
core   +1 more source

Identification Method of Coal and Coal Gangue Based on Dielectric Characteristics [PDF]

open access: yesIEEE Access, 2021
To solve the problems of the difficult feature extraction, poor feature credibility and low recognition accuracy of coal and gangue, this paper utilizes the difference in the dielectric properties of coal and gangue and in combination with a support vector machine (SVM) to propose a recognition method based on the dielectric characteristics of coal and
Yongcun Guo   +4 more
openaire   +2 more sources

Synthesis of Rice Husk-Based Zeolit using Hydrothermal Method and Its Detergent Builder Properties [PDF]

open access: yes, 2015
Detergents are cleaning agents that consist of a complex formulation such as surfactants, builders, bleaching, fillers and other additives.
Alfiansyah, A.   +2 more
core   +2 more sources

Coal gangue in asphalt pavement: A review of applications and performance influence

open access: yesCase Studies in Construction Materials
The comprehensive utilization of coal gangue is low, and this causes serious environment problems and security risks. The physical and chemical properties of coal gangue were analyzed in this paper, and the estimated value of different chemical ...
Luo Yaofei, Zhao Xingchen, Zhang Ke
doaj   +1 more source

Research on method of acquiring high quality coal gangue images under multi-factor illumination condition

open access: yesMeitan kexue jishu, 2023
Aiming at the problem of poor imaging quality of coal and gangue surface features and low identification rate of coal and gangue caused by insufficient illumination conditions in the process of online coal separation,a new high-quality coal gangue image ...
CAO Xiangang   +5 more
doaj   +1 more source

Coal-gangue image classification method

open access: yesGong-kuang zidonghua, 2020
For problems that traditional coal-gangue separation methods such as manual separation method, mechanical wet-separation method, γ-ray separation method and so on could not give consideration to high efficiency, safety and easy operation, a coal-gangue image classification method based on machine vision was proposed.
RAO Zhongyu, WU Jingtao, LI Ming
openaire   +1 more source

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