Author:
Ranga Ramanujam I.V.,Ramachandra Reddy K.,Venkata Ramana N.
Abstract
Abstract
This article examines the impact of liquid binder (L/B) ratio, molarities, sodium silicate to sodium hydroxide ratios on the compressive strength of geopolymer mortars. In total 72 trial mixes of geopolymer mortar are prepared with GGBS as base constituent material. In the experimental investigation the molarities varied from 8 to 18 by increment of 2 and liquid binder ratio is varied as 0.35, 0.40 and 0.45. In addition to those two variables, alkaline solution ratios are also changed as 1.5, 2.0, 2.5 and 3.0. From the experimental study it is noticed that the geopolymer mortar with GGBS has shown higher compressive strength. Amongst all the mixes, the specimens with liquid binder ratio of 0.45, alkaline ratio of 2.0 and Molarity 14M of NaOH solution exhibited maximum strength of 52.69 MPa.
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