The effects of different mineral additives on features of geopolymer grouts

Abstract: Geopolymer grouts are materials which are produced by as a result of naturel minerals are activated by alkali ones. Blast furnace slag and fly ash geopolymer grouts are activated by alkalis like potassium silicate and potassium hydroxide. Features and use of geopolymers are being researched in the filds of organic chemistry, physical chemistry, mineralogy and engineering technology.Morever, geopolymers have quite a lot of application areas. In this research, fly ash and slag are activated by different alkalis and 9 distinct mixtures were formed. Hydro-cure and steam cure wereapplied to the samples that were formed from these mixtures. Samples which are taken out of the cures are protected in the curing room till the experiment time comes. In this study, pressure and bending experiments were applied to the samples in the time period of 3, 7, 28 days. Obtained experiment results are evaluated by analysis of variance. Moreover, 50 to 100 cycles freeze- thaw experiments are carried out to the samples and the results were determined by creating a graph. From final results, ideal mixture ratio was determined according to different cure conditions.