fig9
![Influence of Ca on the mechanical properties and microstructures of slag-fly ash geopolymers](https://image.oaes.cc/2b0f057a-fe4a-44f0-a34d-074e993518ea/4613.fig.9.jpg)
Figure 9. Macro changes of geopolymers prepared with different proportions of BFS in freezing-thawing cycles for (A) initial sample, (B) 10 times and (C) 20 times. BFS: Blast furnace slag.
Figure 9. Macro changes of geopolymers prepared with different proportions of BFS in freezing-thawing cycles for (A) initial sample, (B) 10 times and (C) 20 times. BFS: Blast furnace slag.
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