**2.2 Chemical properties**

The chemical composition shows a huge effect on the mechanical properties of concrete. **Table 2**. displays the chemical properties of bentonite. The studies reveal a larger amount of SiO2 presence, Al2O3 as a second focal component in bentonite. It prompts the occurrence of a pozzolanic reaction during the hydration process. Most of the researchers revealed that those are inside limits. 13.74 LoI esteem was accounted for by Mirza et al. [14], which is the only value not within the allowable limits.
