Mechanical Properties of High Calcium Flyash GGBFS Geopolymer Paste, Mortar and the Effect of Glass Fibre Mesh on the Strength of Geopolymer Mortar Tiles
Ravikumar P1, Abhinav Bhandari2, Joshua Paul Verghese3, Abhilesh N Jain4, Tika Devi Rai5, Jessy Rooby2, Sundararajan T6
1Ravikumar p*, Associate professor, Dept. of Civil Eng., Hindustan Institute of Technology and Science (HITS), Chennai, India.
2Abhinav Bhandari, Graduate Students, Dept. of Civil Eng., Hindustan Institute of Technology and Science (HITS), Chennai
3Joshua Paul Verghese, Graduate Students, Dept. of Civil Eng., Hindustan Institute of Technology and Science (HITS), Chennai
4Abhilesh N Jain, Graduate Students, Dept. of Civil Eng., Hindustan Institute of Technology and Science (HITS), Chennai
5Tika Devi Rai, Graduate Students, Dept. of Civil Eng., Hindustan Institute of Technology and Science (HITS), Chennai
6Jessy Rooby, Professor, Dept. Civil Engineering, Hindustan Institute of Technology and Science (HITS), Chennai
7Sundararajan T, Professor of Civil Engineering (Retd.), Pondicherry Engg., college, Pondicherry – 306105, India.
Manuscript received on March 15, 2020. | Revised Manuscript received on March 25, 2020. | Manuscript published on April 10, 2020. | PP: 722-729 | Volume-9 Issue-6, April 2020. | Retrieval Number: F3955049620/2020©BEIESP | DOI: 10.35940/ijitee.F3955.049620
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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: In this paper, a combination of high-calcium fly ash (HCFA) and ground granulated blast furnace slag (GGBFS) was used along with a combination of sodium hydroxide (NaOH) and sodium silicate(Na2SiO3 ) as alkaline activators (AAs) to produce geopolymer paste and mortar. The alkaline activator ratio (AAR) was maintained at 1.5 apart from their molarity at 10 for the study. A rational method, namely minimum voids approach was used for the mix design. A commercially available glass fibre mesh was used as reinforcement in the geopolymer mortar produced above, to assess its potential for use as a flooring tile. The influence of W/S (water-to-solids) ratio and the influence of various fine aggregates, namely, river sand (R), manufactured sand (M) and construction demolition waste (D) on the various geopolymer system (GP) and on the strength characteristics, are highlighted. A maximum transverse strength (TS) of 6.25 N/mm2 could be attained by the geopolymer tile, using three layers of glass fibre mesh and GP mortar developed. The study indicates that a combination of FA and GGBFS helps us to attain substantial strength under ambient temperature in geopolymer mortar.
Keywords: Geopolymer Paste and Mortar, Flyash(FA), GGBFS, Alkali-activators(AAs), Glass fibre mesh Reinforcement, Compressive Strength(CS), Flexural strength(FS), Flooring tile.
Scope of the Article: Mechanical Design