Mechanical Properties of Geopolymer Concrete with Flyash and Metakaolin
A. Lakshmi Deepak1, T.V.S. Vara Lakshmi2
1A. Lakshmi Deepak*, Research Scholar, University College of Engineering & Technology, Acharya Nagarjuna University, Guntur.
2Dr. T. V. S. Vara Lakshmi, Asst. Professor, University College of Engineering & Technology, Acharya Nagarjuna University. Guntur.
Manuscript received on September 13, 2019. | Revised Manuscript received on October 15, 2019. | Manuscript published on October 30, 2019. | PP: 3863-3868 | Volume-9 Issue-1, October 2019 | Retrieval Number: A1180109119/2019©BEIESP | DOI: 10.35940/ijeat.A1180.109119
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Trials has been made to produce efficient GPC which gives maximum strength. By-Products from industries such as Fly-Ash, Metakaolin and GGBS can be used in concrete replacement which in-turn reduces carbon-di-oxide (CO2 ) emission affecting to green house. Using the above said products also leads to reduction of water demand in concrete and also shows comparatively no effects on long term effects in concrete, these by-products can effectively be used in concrete production. The high silica content in Fly-Ash and Metakaolin increases the bonding in concrete which in-turn increases the mechanical properties of concrete. Geopolymer concrete of M50 grade was proposed to be produced using fly-ash and Metakaolin instead of cement. Alklai solutions Sodium Hydroxide (NaOH), Sodium Silicate (Na2SiO3) were replaced with water for better bonding and mixing. Molarity of Sodium Hydroxide with 10M and 12M was considered for this study. Ratio of Alkaline solution were considered as 1:2,1:2.5&1:3 to determine the optimum ratio which gives effective strength. In this experimental study, tests were carried on concrete specimens with percentage replacement of Fly-Ash with Buff Metakaolin in variable percentages of 20,40,60,80&100. Mechanical properties of concrete specimens were studied and were compared with control mix results.
Keywords: Geo-Polymer Concrete GPC, Fly Ash, Metakoalin, Sodium Hydroxide (NaOH), Sodium Silicate (Na2SiO3).