Increasing the setting time of geopolymer paste in different ways, because commercial superlubricants have little or no effect on polymerization reactions, the world is focusing on making suoerplastisizers that increase the setting time of alkali activated materials.
Alkali-activated materials – also known as geopolymers – are created from a range of materials (usually industrial by-products), known as precursors. These are added to an alkaline medium to produce a cementitious material that can be used instead of Portland cement in the making of concrete.
There are many natural materials available but you need to see which are mostly studied and which are left out and you have to choose the material from among the left out so that your research can be innovative.