activated coal gangue的用法和样例：
- Replaced some cement clinker by flue dust activated coal gangue as admixture and tested its setting time and strength.
- The results show that the pozzolanic activity of thermal activated coal gangue in the north of China is stronger than that in the south.
- fine powder of activated coal gangue
- Application of artificial neural network in the prediction of the compressive strength of concrete with activated coal gangue powder