| 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 | Results show that the pretreated gangue dehydrated at about 780℃ and 850℃ respectively have hydration and hardening activity. |