**3.5 Microstructural analysis**

EDAX and SEM analysis were carried out on specimens as a part of microstructural analysis [15] to know the factors contributing to the behaviour of new combination of fine aggregates used in geopolymer concrete.

**Figure 11.**

*Density of GPC for all combinations by wetting and drying cycles.*

**Figure 12.** *Flexural strength of GPC under ambient curing conditions.*
