Ecofriendly Geopolymer: An Alternative Construction Material

Geopolymer is an inorganic alumina silicate polymer synthesized from predominantly silicon and aluminium materials of geological origin or byproduct materials like fly ash. The use of geopolymer technology substantially reduces the CO₂ emissions by the cement industries and utilizes the wastematerials such as fly ash.The fresh geopolymer concrete has stiff consistency and high viscosity. The chemical reaction period is substantially fast. To evaluate the performanceof geopolymermortar, thetests conducted are cube compressivestrength, cylinder compressive strength and split tensile strength. Strength tests revealed that the compressive strength of geopolymer mortar cubes increases 2 to 2.5 times the compression strength of the control mortar. The main advantages of the present investigation are 100%fly ash utilization, complete elimination of cement, nowater/autoclavecuring, lowwater absorption and high compressive strength.