coal gangue cement production

A concrete material with waste coal gangue and fly ash ...

2016-1-20  Currently, coal gangue is primarily utilized in the following aspects: power generation, agricultural fertilizer, highway roadbeds, mined land reclamation backfill, brick production, cement production, and concrete production (Hao and Wang, 2009, Liu and Liu, 2010, Yu et al., 2012).

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Recycling Coal Gangue as Raw Material for Portland

Request PDF Recycling Coal Gangue as Raw Material for Portland Cement Production in Dry Rotary Kiln Coal gangue (CG) is one of industrial solid

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Materials Free Full-Text Application of Coal Gangue as ...

2021-11-11  Among the techniques for converting stacked coal gangue to reusable material, one of the most effective ways is to use coal gangue as a coarse aggregate in green concrete productions. The physical and chemical properties of rock and spontaneous-combustion coal gangue are generally suitable for being used as a coarse aggregate in green concrete.

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Preparation of solid-waste-based pervious concrete for ...

Therefore, self-ignited coal gangue (SCG) is a type of naturally active addition that can be used as a good auxiliary cementitious material in concrete production because of its potential pozzolanic activity , , . This is expected to play an important role in the large-scale utilization of CG and the reduction of product costs.

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Incorporation of self-ignited coal gangue in steam cured ...

2021-4-10  Steam curing is commonly adopted in the production of precast concretes (PC) for modern industrialized buildings. To propel recycling of harmful waste and reduce carbon emission for prefabricated construction, this study aims to provide insights into the role of steam curing in performance of PC incorporating self-ignited coal gangue (CG) particles.

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Utilization of coal gangue as coarse aggregates in ...

In this paper, coal gangue is utilized as a replacement of coarse aggregate in structural concrete. The effects of coal gangue on the mechanical properties of concrete material, circular reinforced concrete column and concrete-filled steel tubular column are experimentally studied and discussed in detail.

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Coal gangue – Electro Magnetic Industries

Equipment needed. No matter the gangue used for brick production, coal and pyrite recycling, or making cement additive and supplying to coal gangue power plant, the normal used processing equipments are jaw crusher, impact crusher, SCM

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A concrete material with waste coal gangue and fly ash ...

Coal gangue can be converted into low-density ceramsite aggregates, which can be used to make low-density coal lightweight aggregate concrete, usually with

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Utilization of coal gangue for the production of brick ...

2016-6-8  Coal gangue, an industrial solid waste discarded from coal mining and processing, was used as the sole raw material to prepare brick. The coal gangue was crushed, homogenized, milled and then pressed into green compacts. The dried compacts were sintered at different temperatures for 2 h. The obtained brick samples were characterized with X-ray diffraction,

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China Coal Gangue Industry Market Research and ...

2014-5-23  Presently, the coal gangue in China is mainly used in power generation, brickmaking, cement-making, production of chemical products, and fertilizer-making. In 2010 the installed capacity to comprehensive utilization power plant of coal gangue and coal slime reaches 25 million kilowatts.

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Materials Free Full-Text Application of Coal Gangue as ...

Among the techniques for converting stacked coal gangue to reusable material, one of the most effective ways is to use coal gangue as a coarse aggregate in green concrete productions. The physical and chemical properties of rock and spontaneous-combustion coal gangue are generally suitable for being used as a coarse aggregate in green concrete.

More

Recycling Coal Gangue as Raw Material for Portland

Request PDF Recycling Coal Gangue as Raw Material for Portland Cement Production in Dry Rotary Kiln Coal gangue (CG) is one of industrial solid

More

Incorporation of self-ignited coal gangue in steam cured ...

2021-4-10  Steam curing is commonly adopted in the production of precast concretes (PC) for modern industrialized buildings. To propel recycling of harmful waste and reduce carbon emission for prefabricated construction, this study aims to provide insights into the role of steam curing in performance of PC incorporating self-ignited coal gangue (CG) particles.

More

Utilization of coal gangue for the production of brick ...

2016-6-8  Coal gangue, an industrial solid waste discarded from coal mining and processing, was used as the sole raw material to prepare brick. The coal gangue was crushed, homogenized, milled and then pressed into green compacts. The dried compacts were sintered at different temperatures for 2 h. The obtained brick samples were characterized with X-ray diffraction,

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Study on Preparation of Coal Gangue-Based Geopolymer ...

2021-6-24  Alkaline dry powder activator, coal gangue, fly ash, and other raw materials are utilized to prepare coal gangue-based geopolymer concrete. The procedures of making the coal gangue-based geopolymer concrete are illustrated firstly. Also, basic mechanical properties, such as compressive strength and flexural strength of the geopolymer concrete, are studied through

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A concrete material with waste coal gangue and fly ash ...

Coal gangue can be converted into low-density ceramsite aggregates, which can be used to make low-density coal lightweight aggregate concrete, usually with

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Journal of Cleaner Production - Cugb

2017-5-9  A concrete material with waste coal gangue and fly ash used for farmland drainage in high groundwater level areas Jinman Wang a, b, *, Qian Qin a, Sijia Hu a, Kening Wu a, b a College of Land Science and Technology, China University of Geosciences, 29 Xueyuanlu, Haidian District, 100083 Beijing, People's Republic of China b Key Laboratory of Land

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Monitoring and Assessment of Cemented Paste Backfill ...

2021-2-23  Cemented coal gangue paste backfill (CCGPB) containing coal gangue and fly ash is a backfilling technique newly developed in coal mines in China that allows environmentally hazardous products, such as gangue and fly ash, to be reused in underground stopes. CCGPB materials provide efficient ground support for the caving of strata and reduce surface subsidence.

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China Coal Gangue Industry Market Research and ...

2014-5-23  Presently, the coal gangue in China is mainly used in power generation, brickmaking, cement-making, production of chemical products, and fertilizer-making. In 2010 the installed capacity to comprehensive utilization power plant of coal gangue and coal slime reaches 25 million kilowatts.

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铝硅酸盐固废胶凝材料制备及其性能

2020-7-16  Zhang N,Liu X M,Sun H H,et al.Pozzolanic behaviour of compound-activated red mud-coal gangue mixture[J].Cement and Concrete Research,2011,41(3):270-278. 28 Zhang N,Li H X,Liu X M.Hydration kinetics of cementitious materials composed of red mud and coal gangue[J].International Journal of Minerals,Metallurgy and

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Recycling Coal Gangue as Raw Material for Portland

Request PDF Recycling Coal Gangue as Raw Material for Portland Cement Production in Dry Rotary Kiln Coal gangue (CG) is one of industrial solid

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Effect and mechanism of coal gangue concrete

2021-5-18  Fly ash (FA) and gangue are common solid wastes. In this study, coarse aggregates were replaced with coal gangue at a constant substitution rate of 40% to promote the application of coal gangue in concrete production. The modification effect of FA ...

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A concrete material with waste coal gangue and fly ash ...

Coal gangue can be converted into low-density ceramsite aggregates, which can be used to make low-density coal lightweight aggregate concrete, usually with

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Mechanism on Activation of Coal Gangue Admixture

2021-9-28  The production steps of this test sample are as follows: ① the amount of raw materials was weighed according to the design of the mix ratio; ② the mixer was prewet, and coal gangue powder, cement, and chemical activator of different mass ratios were poured into the mixer for 120 s.

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Monitoring and Assessment of Cemented Paste Backfill ...

2021-2-23  Cemented coal gangue paste backfill (CCGPB) containing coal gangue and fly ash is a backfilling technique newly developed in coal mines in China that allows environmentally hazardous products, such as gangue and fly ash, to be reused in underground stopes. CCGPB materials provide efficient ground support for the caving of strata and reduce surface subsidence.

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Experimental research on utilization of coal gangue as clay ...

2021-9-27  The practice of the coal gangue part replaces the clay production cement[J]. New Century Cement Review, 2004(supplement): 113114. [2] 孙星寿,周贺.国内外水泥行业对比研究及政策思考[J].中国水泥,2002(7): 6467. SUN Xing-shou, ZHOU-he. Contrast

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China Coal Gangue Industry Market Research and ...

2014-5-23  Presently, the coal gangue in China is mainly used in power generation, brickmaking, cement-making, production of chemical products, and fertilizer-making. In 2010 the installed capacity to comprehensive utilization power plant of coal gangue and coal slime reaches 25 million kilowatts.

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Mechanical Properties of Furnace Slag and Coal Gangue ...

2021-11-22  Coal gangue is a rock type with lower carbon content and higher hardness compared with coal. Coal gangue comprises multiple rocks and forms one of the primary wastes in coal production. Although >300 million tons of coal gangue are discarded each year, China’s utilization rate of coal gangue has reduced [1,2,3,4].

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铝硅酸盐固废胶凝材料制备及其性能

2020-7-16  Zhang N,Liu X M,Sun H H,et al.Pozzolanic behaviour of compound-activated red mud-coal gangue mixture[J].Cement and Concrete Research,2011,41(3):270-278. 28 Zhang N,Li H X,Liu X M.Hydration kinetics of cementitious materials composed of red mud and coal gangue[J].International Journal of Minerals,Metallurgy and

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Comprehensive utilization of solid waste are improved ...

2012-4-6  In the coal gangue," Twelfth Five-Year Plan" period, focusing on research and development of coal gangue cement filling for cementitious materials of mass production technology, coal gangue as substitute of clay tile and other ceramic products technology, coal

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