STRENGTH CHARACTERISTICS OF FLY ASH BASED GEOPOLYMER CONCRETE WITH 14 MOLAR NAOH ACTIVATOR

Objectives: The intention of the paper is to find their strength characteristics of fly ash based Geo Polymer Concrete (GPC) with varied ratios of alkaline solutions at the age of 3, 7&28 days. Methods: To assess the essence of various parameters i.e. NaOH concentration, Ratio of alkaline solution to fly ash and Ratio of Na2SiO3 to NaOH, curing time the experimental work was carried. In this paper Na2SiO3 to NaOH ratios of 1:2, 1:2.5, 1:3 and Sodium hydroxide solution with 14M concentration and liquid to fly ash ratio is 0.45. Room temperature was used. Findings: For geopolymer binders, the tests have been conducted to evaluate split tensile strength, flexural strength and compressive strength with respect to cylinders, beams and cubes. The outcomes indicated the increment in the strengths with the increase of activator ratio at the age of 3,7&28 days and higher ratio gives higher strength. Improvements: This investigation can be enhanced for various molarities under various temperatures and various activator ratios.