Durability Behaviour of Geopolymer Concrete with Metakaolin and GGBS
Ganesan Nagalingam1, Ramesh Babu Chokkalingam2, Meyyappan PL3
1Ganesan Nagalingam, Department of Civil Engineering, Kalasalingam Academy of Research and Education, Krishnankoil, Virudhunagar District (Tamil Nadu), India.
2Ramesh Babu Chockkalingam, Department of Civil Engineering, Kalasalingam Academy of Research and Education Krishnankoil, Virudhunagar District (Tamil Nadu), India.
3Meyyappan PL, Department of Civil Engineering, Kalasalingam Academy of Research and Education, Krishnankoil, Virudhunagar District (Tamil Nadu), India.
Manuscript received on 01 December 2019 | Revised Manuscript received on 13 December 2019 | Manuscript Published on 30 December 2019 | PP: 78-81 | Volume-9 Issue-2S2 December 2019 | Retrieval Number: B10191292S219/2019©BEIESP | DOI: 10.35940/ijitee.B1019.1292S219
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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: This study consists of preparation of Geopolymer concrete mix with Ground Granulated Blast furnace Slag (GGBS) which is followed by the usage of Metakaolin in replacement of GGBS with 5% variation from 0 to 25%. From previous researches on geopolymer concrete with GGBS, an optimized mix is selected and tested for durability behaviour. A 12 Molarity sodium hydroxide solution along with sodium silicate in the ratio of 1:2.5 is used as activator in this study. La Hypercrete S25 which belongs to the category of carboxylic is used as admixture for escalating the workability. Water absorption, Acid resistance, and Rapid Chloride Penetration (RCPT) are the durability tests performed on the specimens. The prepared specimens are water cured at room temperature for the required days in accordance with the codal guidelines and tested for durability. For water absorption test, concrete cylinders of 50mm dia and 100mm height are prepared. 100 mm size cube specimens prepared for acid resistance test. The specimens for RCPT include preparation of discs of 100 mm dia and 50 mm height. In all the test specimens, GGBS is replaced by Metakaolin. It is believed from the test results that geopolymer concrete with Metakaolin and GGBS performs well in durability aspects.
Keywords: Activator, Admixture, Geopolymer Concrete, GGBS, Metakaolin.
Scope of the Article: Concrete Structures