Engineering and Technology Journal

Mechanical Performance of Blended Fly Ash-based Geopolymer Concrete with GGBS and Metakaolin

Document Type : Research Paper

Authors

1 Civil Engineering Dept., University of Technology-Iraq, Alsina’a street, 10066 Baghdad, Iraq.

2 Civil Engineering Department, University of Technology - Iraq

3 Civil Engineering, University of Technology, Baghdad, Iraq

Abstract

One of the most user-friendly alternatives to ordinary concrete is geopolymer concrete(GPC), which achieves the same result. GPC is a unique substance made by activating source materials with a high concentration of silica and alumina. As a result, geopolymer binders use less raw resources and emit less carbon dioxide. For these reasons, most academics are focusing on these sorts of resins to develop eco-friendly housing. This article reports on an experimental investigation that examined the Mechanical Performance of Blended Fly Ash based Geopolymer concrete at 7,28 and 360 days made with two different activator solution molarities and varying R (SiO2/Al2O3) ratios. Positive findings were seen at a larger percentage of GGBS (36%) with a concentration of a sodium hydroxide solution of 10 M and an R ratio of 2.75, compared with other proportions. The test findings indicate that increasing the concentration of sodium hydroxide (NaOH) solution and R enhances the compressive strength and decreases water absorption of geopolymer concrete.

Graphical Abstract

Highlights

  • The mechanical strength of Geopolymer concrete increase with an increase SiO2/Al2O3 ratio.
  • The substitution of GGBS with fly ash will increase the strength of concrete and reduce its workability.
  • Increasing the molarity of NaOH led to increased compressive, tensile, and flexural strength.
  • The workability increases with the fly ash content and decreases as NaOH concentration increases.
  • The substitution of metakaolin with fly ash will reduce the strength and workability. 

Keywords

Main Subjects

References
[1] J. Davidovits, Man-Made Geosynthesis and the Resulting Development of Very Early High Strength Cement, J. Mater. Educ., 16 (1994) 91–139.
[2] P. Nath and P. K. Sarker, Effect of GGBFS on Setting, Workability and Eearly Strength Properties of Fly Ash Geopolymer Concrete Cured in Ambient Condition, Constr Build Mater., 66 (2014) 163–171. http://doi.org/10.1016/j.conbuildmat.2014.05.080
[3] P. K. Sarker, S. Kelly, and Yao Zhitong, Effect of exposure on cracking, spalling and residual strength of fly ash geopolymer concrete, Mater. Des., 63 (2014) 584–592. https://doi.org/10.1016/j.matdes.2014.06.059
[4] P. S. Deb, P. p Nath, and P. K. Sarker, The effects of ground granulated blast-furnace slag blending with fly ash and activator content on the workability and strength properties of geopolymer concrete cured at ambient temperature, Mater. Des., 62 (2014) 32–39. https://doi.org/10.1016/j.matdes.2014.05.001
[5] J. Davidovits, Geopolymers: Inorganic Polymeric New Materials, J. Therm. Anal., 37 (1991) 1633–1656. https://doi.org/10.1007/bf01912193
[6] J. Davidovits, Global Warming Impact on the Cement and Aggregate Industries, World Resour. Rev. 6 (1994) 263–278.
[7] M. Motorwala A., V. Shah, R. Kammula, P. Nannapaneni, and D. B. Raijiwala, Alkali Activated FLY-ASH Based Geopolymer Concrete, Int. J. Emerg. Technol. Adv. Eng. 3 (2013) 159–166.
[8] P. Blanco, M.T A., Alkali-Activated Fly Ashes-A Cement for the Future, Cem. Concr. Res. 29 (1999) 1323–1329. https://doi.org/10.1016/S0008-8846(98)00243-9
[9] H. Xu, Geopolymerization of Aluminosilicate Minerals, PhD thesis, University of Melbourne, 2002.
[10] J. G. S. Jaarsveld, J. S. J. Deventer, and G. C. Lukey, The effect of composition and temperature on the properties of fly ash and kaolinite-based geopolymers, Chem. Eng. J.89(2002) 63-73.
[11] D. Hardjito and B. V. Rangan, Development and properties of low-calcium fly ash-based geopolymer concrete, Res. Rep. Perth Aust. Curtin Univ. Technol., 2005, [Online]. Available: http://hdl.handle.net/20.500.11937/5594
[12] J. J. E. dan O. Damayanti, Sifat Makanik Beton Geopolimer Berbahan Dasar Fly Ash Jawa Power Paiton Sebagai Material Alternatif, J. PONDASI,13 (2007).
[13] R. K. Tabassum and A. Khadwal, Effect of Sodium Hydroxide Concentration on Various Properties of Geopolymer Concrete, IJETR, 3 (2015) 2454–4698.
[14] J. N. Yankwa Djobo, H. K. Tchakoute, N. Ranjbar, A. Elimbi, ‡ Leonel Noumbissie Tchadjie, and D. Njopwouo, Gel Composition and Strength Properties of Alkali-Activated Oyster Shell- Volcanic Ash: Effect of Synthesis Conditions, J. Am. Ceram. Soc. 99 (2016) 3159–3166.
[15] U. Rattanasak and P. Chindaprasirt, Influence of NaOH Solution on the Synthesis of Fly Ash Geopolymer, Miner. Eng., 22 (2009) 1073–1078.
[16] M. Albitar, M. S. Mohamed Ali, P. Visintin, and M. Drechsler, Durability evaluation of Geopolymer and conventional concretes, Constr. Build. Mater., 136 (2017) 374–385.
[17] T. Phoo-ngernkham, A. Maegawa, N. Mishima, S. Hatanaka, and P. Chindaprasirt, Effects of Sodium Hydroxide and Sodium Silicate Solutions on Compressive and Shear Bond Strengths of FA–GBFS Geopolymer, Constr. Build. Mater. 91 (2015) 1–8.
[18] D. Hardjito, S. E. Wallah, D. M. J. Sumajouw, and B. V. Rangan, On the Development of Fly ash-Based Geopolymer Concrete, ACI Mater. J., 101 (2004) 467–472.
[19] G. M. Rao and T. D. G. Rao, Final Setting Time and Compressive Strength of Fly Ash and GGBS-Based Geopolymer Paste and Mortar, Arab. J. Sci. Eng., 40 (2015) 3067–3074. doi: 10.1007/s13369-015-1757-z.
[20] A. M. M. AlBakria, H. Kamarudin, M. BinHussain, I. K. Nizar, Y. Zarina, and A. R. Rafiza, The Effect of Curing Temperature on Physical and Chemical Properties of Geopolymers, Phys. Procedia., 22 (2011) 286–291.
[21] M. Albitar, P. Visintin, M. S. Mohamed Ali, and M. Drechsler, Assessing Behaviour of Fresh and Hardened Geopolymer Concrete Mixed with Class-F Fly Ash, KSCE J. Civ. Eng., 19 (2014).
[22] B. D. C. S.R. Stock, Elements of X-Ray Diffraction, Third Edition. Pearson New International Edition, 2014.
[23] J. J. Chang, A Study on the Setting Characteristics of Sodium Silicate-Activated Slag Pastes, Cem. Concr. Res., 33 (2003) 1005–1011.
[24] T. Bakharev, Alkali Activated Slag Concrete: Chemistry, Microstructure and Durability, 2000.
[25] Iraqi Specification Standard, Natural Aggregate Resource That Used in Building and Concrete, 1984.
[26] J. Davidovits, Geopolymer inorganic polymeric new materials, 37 (1991) 1633–1656. http://dx.doi.org/10.1007/BF01912193
[27] B. Rangan, Mix design and production of fly ash based geopolymer concrete, Indian Concr J., 82 (2008) 7–15.
[28] R. Anuradha, V. Sreevidya, R. Venkatasubramani, and B. V. Rangan, Modified guidelines for geopolymer concrete mix design using Indian standard, Asian J Civ Eng Build Hous., 13 (2012) 353–364.
[29] S. A. B. J. L. Provis, Engineering and Durability Properties of Concretes Based on Alkali-Activated Granulated Blast Furnace Slag/Metakaolin Blends, Constr. Build. Mater., 33 (2012) 99–108.
[30] A. Kusbiantoro, M. F. Nuruddin, N. Shafiq, and S. A. Qazi, The effect of microwave incinerated rice husk ash on the compressive and bond strength of fly ash based geopolymer concrete, Constr. Build. Mater. 36 (2012) 695–703. doi: https://doi.org/10.1016/j.conbuildmat.2012.06.064.
[31] C. K. Yip, G. C. Lukey, and J. S. J. van Deventer, The coexistence of geopolymeric gel and calcium silicate hydrate at the early stage of alkaline activation, Cem. Concr. Res., 35 (2005) 1688–1697.
[32] P. D. Silva and K. Sagoe-Crenstil, Medium-term phase stability of Na2O–Al2O3– SiO2–H2O geopolymer systems, Cem. Concr. Res., 38 (2008) 870–876. https://doi.org/10.1016/j.cemconres.2007.10.003
[33] F. N. Okoye, J. Durgaprasad, and N. B. Singh, Effect of silica fume on the mechanical properties of fly ash based-geopolymer concrete, Ceram. Int., 42 (2016) 3000–3006.
[34] P. Duan, C. Yan, and W. Zhou, Compressive strength and microstructure of fly ash based Geopolymer blended with silica fume under thermal cycle, Cem. Concr. Compos.,78 (2017) 108–119.
[35] F. N. Okoye, S. Prakash, and N. B. Singh, Durability of fly ash based geopolymer concrete in the presence of silica fume, J. Clean. Prod.,149 (2017) 1062–1067. https://doi.org/10.1016/j.jclepro.2017.02.176
[36] P. K. Mehta and J. M. Monteiro, Concrete-Microstructure, Properties and Materials, Third Edition. New Jersey, 2006.
[37] ASTM C597-02, Standard Test Method for Pulse Velocity Through Concrete, vol. 4, no. 2, pp. 3–6.
[38] B. V. Rangan, Engineering Properties of Geopolymer Concrete, Woodhead Publ. Ltd., 2009.
[39] Recommended Practice- Production Geopolymer Concrete, 1st edition. Concrete Institute of Australia, 2011.
[40]  BS EN 12390-8:2009 Testing hardened concrete. Depth of penetration of water under pressure.
[41] P. ,Ye, G. Q. T., Determination of water permeability of cementitious materials using a controlled constant flow method, Const Build Mater., 32 (1999) 370–376.
[42] p. w. ken c.c.ban, An overview on the Influence of Various Factors on The Properties of Geopolymer ConcreteDerived from Industrial by-products, Constr. Build. Mater., 77 (2015) 370–395. https://doi.org/10.1016/j.conbuildmat.2014.12.065
Engineering and Technology Journal
Volume 40, Issue 5
Civil Engineering
, 19 Articles
May 2022
Page 819-831
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