浅析中国粉煤灰的综合利用现状

doi:10.11962/1006-4990.2019-0191

Abstract

Abstract:

Fly ash is kind of gray powdery waste discharged from coal-fired power plants. As the demand for coal resources continues to increase,fly ash emissions are also increasing.Appropriate processing and utilization of fly ash to reduce enviro-nmental pollution has become a research focus by more and more people.The physical and chemical properties of fly ash were expounded,the application of fly ash in building materials,agriculture,chemical industry and environmental protection was introduced,and suggestions were made for the comprehensive utilization of fly ash in China.

Key words: fly ash, environment pollution, comprehensive utilization

CLC Number:

TQ127.2

Zhang Xiangcheng,Meng Yongbiao. Brief analysis on present situation of comprehensive utilization of fly ash in China[J]. Inorganic Chemicals Industry, 2020, 52(2): 1-5.

Figures/Tables 2

References 48

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项目	密度/ （g·cm^-3）	表观密度/ （g·cm^-3）	密实度/ （g·cm^-3）	原灰标准稠度/ %	需水量/ %	28 d抗压强度比/ %
	1.9~2.9	531~7 261	25.6~47.0	27.3~66.7	89~130	37~85
平均值	2.1	780	36.5	48.0	106	66

项目	w （SiO₂）	w （Al₂O₃）	w （Fe₂O₃）	w （CaO）	w （MgO）	w （K₂O）	w （SO₃）
	33.9~ 59.7	16.5~ 35.4	1.50~ 6.22	0.8~9.4	0.7~1.9	0.7~2.9	0.1~1.2
平均值	50.6	27.2	6.2	2.8	1.2	1.3	0.3

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Brief analysis on present situation of comprehensive utilization of fly ash in China

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