Paper Title
Development of High Calcium Fly Ash Geopolymer Mortar with Lime as Masonry and Plastering Mortar

This paper investigated the development of high calcium fly ash (FA) geopolymer mortar containing hydrated lime (CH) as an alternative masonry and plastering mortars.Parameters viz., hydrated lime (CH) replacement, sand-to-binder ratio (S/B) and ratio of sodium silicate (Na2SiO3)-to-sodium hydroxide (NaOH) solution on compressive strength of geopolymer mortar were tested. The FA was replaced with CH at the ratios of 100:0, 95:5, 90:10, 85:15 and 80:20.The S/B ratios of 2.0, 3.0, 4.0 and Na2SiO3-to-NaOH ratios of 0, 1.0, 2.0, were also tested.Constantsalkaline liquid-to-binder ratio of 0.60and 10M NaOH concentration were used in all mixes. The compressive strengths of FA geopolymer mortar with CH were tested at the age of 1 day. Test results show that the compressive strength of high calcium FA geopolymer mortar with CHdepended on parameters of CH replacement, S/B ratio and Na2SiO3-to-NaOH ratio.A mixture of 10%CH replacement, S/B ratio of 2.0, Na2SiO3-to-NaOH ratio of 1.0 gave the best experimental result in this study. Keyword - Geopolymer Mortar, High Calcium Fly Ash, Lime, Compressive Strength,Masonry And Plastering Mortars