Reactivity activation of waste coal gangue and its impact on the properties of cement-based materials–A review

Y Zhang, TC Ling - Construction and Building Materials, 2020 - Elsevier
Coal gangue is the main industrial solid waste that is physically separated from bulk coal
during coal preparation. In China, the deposition amount of coal gangue is over 500 million …

Activation mechanism of coal gangue and its impact on the properties of geopolymers: A review

R Han, X Guo, J Guan, X Yao, Y Hao - Polymers, 2022 - mdpi.com
Coal gangue is one of the industrial solid wastes that may harm the human body through the
ecosystem for a long time. Using coal gangue in geopolymer preparation can effectively …

Reusing waste coal gangue to improve the dispersivity and mechanical properties of dispersive soil

G Zhao, T Wu, G Ren, Z Zhu, Y Gao, M Shi… - Journal of Cleaner …, 2023 - Elsevier
The disposal of waste coal gangue (WCG) is still a serious problem for areas that rely on the
coal mine industry, especially in the northern part of China. This paper investigated the …

Sodium silicate effect on setting properties, strength behavior and microstructure of cemented coal fly ash backfill

I Cavusoglu, E Yilmaz, AO Yilmaz - Powder Technology, 2021 - Elsevier
Representing an engineered mixture of coal fly ash, cement and water, cemented coal fly
ash backfill (CCB) is typically employed for filling the openings created after coal excavation …

Synthesis of coal-analcime composite from coal gangue and its adsorption performance on heavy metal ions

Y Jin, Z Liu, L Han, Y Zhang, L Li, S Zhu, ZPJ Li… - Journal of Hazardous …, 2022 - Elsevier
An innovative adsorbent,“coal-analcime composite”, was converted from coal gangue
directly, that combined the adsorption effect of analcime and residual coal in coal gangue …

Synthesis and characterization of geopolymers derived from coal gangue, fly ash and red mud

N Koshy, K Dondrob, L Hu, Q Wen… - Construction and Building …, 2019 - Elsevier
There is a growing need to utilize large stockpiles of the industrial byproducts including coal
gangue (CG), fly ash (FA) and red mud (RM) which can pose potential environmental …

Experimental study on calcium carbide residue as a combined activator for coal gangue geopolymer and feasibility for soil stabilization

Y Li, J Li, J Cui, Y Shan, Y Niu - Construction and Building Materials, 2021 - Elsevier
This study investigates the use of calcium carbide residue (CCR) as a potential alternative to
NaOH for activating coal gangue (CG) geopolymers, both of industrial waste. A series of …

Preparation and application of alkali-activated materials based on waste glass and coal gangue: A review

MJ Moghadam, R Ajalloeian, A Hajiannia - Construction and Building …, 2019 - Elsevier
The replacement of new binders with traditional ones such as lime and cement has caught
the eye of researchers in recent decades. The majority of researchers rely on the use of …

[HTML][HTML] 煤矸石综合利用研究进展

李振, 雪佳, 朱张磊, 熊善新, 李学振, 周安宁… - 矿产保护与利用, 2021 - xml-data.org
煤矸石是我国目前排放量最大的矿山固体废弃物之一, 其排放和堆存造成了资源浪费,
环境污染等问题. 从煤矸石的资源特性出发, 系统论述了煤矸石资源化利用的途径和研究现状 …

Influence of thermally activated coal gangue powder on the structure of the interfacial transition zone in concrete

Z Su, X Li, Q Zhang - Journal of cleaner production, 2022 - Elsevier
Coal gangue is a kind of solid waste produced in the coal mining and preparation. Abundant
SiO 2 and Al 2 O 3 are contained in coal gangue, which has potential cementitious activity …