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Meaning of 煤矸石

Lookup via: Pinyin | Radicals
méi gān shí
waste rock (in coal mining)
Example Sentences
1
The chemical activator can promote the early hydration and increase the degree of reaction of coal gangue.
2
Coal gangue was activated by calcination with calcium, while gypsum and fluorite as mineralized agent.
3
Based on the thermodynamics principle, the chemical explosion mechanism of coal gangue heap was studied.
4
The influence of coal gangue and the activator on the hydration property of cement is studied in this paper.
5
780
850
Results show that the pretreated gangue dehydrated at about 780℃ and 850℃ respectively have hydration and hardening activity.