MECHANICAL PROPERTIES OF GEOPOLYMER CONCRETE BY USING PROCESSED FLY ASH

In this experiment we are aiming to minimize the use of cement as it is a major contributor in this global warming. Hence by total replacement of cement with substitute material that is fly ash is thus the hot topic which is still under research. In this experiment we have evaluated the properties of processed fly ash based geopolymer concrete within its fineness of fly ash like Pozzocrete60(P60), Pozzocrete63(P63) and Pozzocrete100(P100) by performing the compression test, split tensile test and flexural strength test with fully replacement of cement by fly ash. To achieve these results, we have prepared mix design of M30 by using chemicals like Sodium Hydroxide (NaOH) 13M and Sodium Silicate (Na2SiO3) combinely called alkaline solution. Solution to fly ash ratio 0.35 is taken for mix designs of each type of processed fly ash which is obtained from Dirk India Pvt. Ltd. Nashik Plant. This experiment shows that initiallyas fineness of the fly ash increases strength of geopolymer concrete increases. But we observe that, after certain fineness of fly ash there is decreasein the compressive strength and the same pattern for result is observed for split tensile test also.