Abstract
Geopolymer technology is nascent technology in the world of concrete. Indian standard code is not available for geopolymer concrete. However, at the initial stage, mix design of plain geopolymer concrete is done by testing various parameters. Calcium based, sodium based and potassium based solutions are available in the market. Sodium based alkaline solutions are used in the present research. Here, 100% replacement of cement is done with fly ash. Fly ash used is Pozzocrete 63. Geopolymer concrete with addition of crimped steel fibers are used in the research. Molarity is finalized as 13M and ratio of Na2SiO3/NaOH is finalized as 2.Alkaline solution to fly ash ratio is taken in the research. Crimped steel fibers of aspect ratio 70 and 100 are added in geopolymer concrete. Results obtained shows that as aspect ratio of crimped steel fibers increases there is increase in compressive strength, flexural strength and split tensile strength of concrete. It is observed that as the aspect ratio of fibers increased up to some extent, its compressive strength is also increased.
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