Fly Ash Concrete
Chemical Nature of Fly Ash
As much as 20 pounds of free lime is released during hydration of 100 pounds of cement.
This liberated lime forms the necessary ingredient for reaction with fly ash silicates to form strong and durable cementing compounds no different from those formed during hydration of ordinary portland cement.
The Hydration reactions of Ordinary Portland Cement without/with presence of Fly ash are as under:
Fly ash also makes substantial contributions to workability, durability, chemical resistance and the environment.
Concrete-Techgroup thanks Headwaters Resources , USA for granting them permission to use their resources in developing this article.