Abstract
In this study, fly ash was utilized to synthesize geopolymer by activating with 4 M sodium hydroxide. Samples were cured at 120 °C for 6, 15 and 24 h, and they were aged for 7, 28 and 90 days. The degree of reaction was determined, and leaching tests were performed on all geopolymer samples according to US EPA TCLP method. The microstructural properties of samples were investigated by Fourier transform infrared spectroscopy (FTIR), X-ray diffractometry (XRD) and scanning electron microscope (SEM) techniques. Increase in both curing and aging durations resulted in higher compressive strength values. The results of leaching tests indicated that the metals were successfully immobilized. The major bonds of geopolymers were observed in FTIR spectrum. The intensity of the Al–O and Si–O asymmetric bonds increased with increase in curing duration. In XRD diffractograms, it was observed that all of the geopolymer samples had amorphous structure containing mainly two crystal phases. FTIR, XRD and SEM results revealed that geopolymerization was achieved in these synthesis conditions despite low molarity.
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References
Ahmaruzzaman M (2010) A review on the utilization of fly ash. Prog Energy Combust Sci 36:327–363. https://doi.org/10.1016/j.pecs.2009.11.003
Al-Degs Y, Ghrir A, Khoury H, Walker MG, Sunjuk M, Al-Ghouti AM (2014) Characterization and utilization of fly ash of heavy fuel oil generated in power stations. Fuel Process Technol 123:41–46. https://doi.org/10.1016/j.fuproc.2014.01.040
Alvarez-Ayuso E, Querol X, Plana F, Alastuey A, Moreno N, Izquierdo M, Font O et al (2008) Environmental, physical and structural characterisation of geopolymer matrixes synthesised from coal (co-) combustion fly ashes. J Hazard Mater 154:175–183. https://doi.org/10.1016/j.jhazmat.2007.10.008
ASTM International Designation (2012) C618-12a standart specification for coal fly ash and raw or calcinated natural pozzolan for use in concrete. ASTM International, United States. https://doi.org/10.1520/c0618-12a
Bakharev T (2005) Geopolymeric materials prepared using Class F fly ash and elevated temperature curing. Cem Concr Res 35:1224–1232. https://doi.org/10.1016/j.cemconres.2004.06.031
Chindaprasirt P, Rattanasak U, Jaturapitakkul C (2011) Utilization of fly ash blends from pulverized coal and fluidized bed combustion in geopolymeric materials. Cem Concr Compos 33:55–60. https://doi.org/10.1016/j.cemconcomp.2010.09.017
Chithiraputhiran S, Neithalath N (2013) Isothermal reaction kinetics and temperature dependence of alkali. Constr Build Mater 45:233–242. https://doi.org/10.1016/j.conbuildmat.2013.03.061
Criado M, Fernández-Jimenez A, Sobrados I, Palomo A, Sanz J (2012) Effect of relative humidity on the reaction products of alkali activated fly ash. J Eur Ceram Soc 32:2799–2807. https://doi.org/10.1016/j.jeurceramsoc.2011.11.036
Cristelo N, Glendinning S, Fernandes L, Pinto AT (2012) Effect of calcium content on soil stabilisation with alkaline activation. Constr Build Mater 29:167–174. https://doi.org/10.1016/j.conbuildmat.2011.10.049
Davidovits J (2008) Geopolymer chemistry and applications. Institut Géopolymére, Saint-Quentin
Duxon P, Provis JL, Lukey GC, van Deventer JSJ (2007a) The role of inorganic polymer technology in the development of green concrete. Cem Concr Res 37:1590–1597. https://doi.org/10.1016/j.cemconres.2007.08.018
Duxon P, Fernandez-Jimenez A, Provis JL, Lukey GC, Palomo A, van Deventer JSJ (2007b) Geopolymer technology: the current state of the art. J Mater Sci 42:2917–2933. https://doi.org/10.1007/s10853-006-0637-z
Fernández Pereira C, Luna Y, Querol X, Antenucci D, Vale J (2009) Waste stabilization/solidification of an electric arc furnace dust using fly ash-based geopolymers. Fuel 88:1185–1193. https://doi.org/10.1016/j.fuel.2008.01.021
Fernández-Jimenez A, Palomo A (2003) Characterisation of fly ashes. Potential reactivity as alkaline cements. Fuel 82:2259–2265. https://doi.org/10.1016/S0016-2361(03)00194-7
Fernández-Jimenez A, Palomo A (2005) Mid-infrared spectroscopic studies of alkali-activated fly ahs structure. Microporous Mesoporous Mater 86:207–214. https://doi.org/10.1016/j.micromeso.2005.05.057
Fernández-Jimenez A, Torre de la AG, Palomo A, López-Olmo G, Alonso MM, Aranda MAG (2006) Quantitative determination phases in the alkali activation of fly ash. Part I. Potential ash reactivity. Fuel 85:625–634. https://doi.org/10.1016/j.fuel.2005.08.014
Galiano YL, Pereira CF, Vale J (2011) Stabilization/solidification of a municipal solid waste incineration residue using fly ash-based geopolymers. J Hazard Mater 185:373–381. https://doi.org/10.1016/j.jhazmat.2010.08.127
Hassan A, Arif M (2019) Shariq: use of geopolymer concrete for a cleaner and sustainable environment—a review of mechanical properties and microstructure. J Clean Prod 223:704–728. https://doi.org/10.1016/j.jclepro.2019.03.051
He J, Zhang J, Yu Y, Zhang G (2012) The strength and microstructure of two geopolymers derived from metakaolin and red mud-fly ash admixture: a comparative study. Constr Build Mater 30:80–91. https://doi.org/10.1016/j.conbuildmat.2011.12.011
Khale D, Chaudhary R (2007) Mechanism of geopolymerization and factors influencing its development: a review. J Mater Sci 42:729–746. https://doi.org/10.1007/s10853-006-0401-4
Lyu S, Hsiao Y, Wang T, Cheng T, Ueng T (2013) Microstructure of geolopymer accounting for associated mechanical characteristics under various stress states. Cem Concr Res 54:199–207. https://doi.org/10.1016/j.cemconres.2013.09.007
MacKenzie JDK (2008) Science of geopolymers: state of the art and possible future developments. In: Bellosi A, Babini GN (eds) Global roadmap for ceramics ICC2 proceedings. Institute of Science and Technology for Ceramics, National Research Council, Italy, pp 703–711
Nath SK, Kumar S (2013) Influence of iron making slags on strength and microstructure of fly ash geopolymer. Constr Build Mater 38:924–930. https://doi.org/10.1016/j.conbuildmat.2012.09.070
Ohno M, Li V (2014) A feasibility study of strain hardening fiber reinforced fly ash-based geopolymer composites. Constr Build Mater 57:163–168. https://doi.org/10.1016/j.conbuildmat.2014.02.005
Palomo A, Blanco-Varela MT, Granizo ML, Puertas F, Vazquez T, Grutzeck MW (1999) Chemical stability of cementitious materials based on metakaolin. Cem Concr Res 29:997–1004
Phair JW, Van Deventer JSJ (2002) Effect of the silicate activator pH on the microstructural characteristics of waste-based geopolymers. Int J Miner Process 66:121–143
Ranjbar N, Mehrali M, Alengaram UJ, Metselaar HSC, Jumaat MZ (2014) Compressive strength and microstructural analysis of fly ash/palm oil fuel ash based geopolymer mortar under elevated temperatures. Constr Build Mater 65:114–121. https://doi.org/10.1016/j.conbuildmat.2014.04.064
Rovnanik P (2010) Effect of curing temperature on the development of hard structure of metakaolin-based geopolymer. Constr Build Mater 24:1176–1183. https://doi.org/10.1016/j.conbuildmat.2009.12.023
Ruiz-Santaquiteria C, Skibsted J, Fernández-Jimenez A, Palomo A (2012) Alkaline solution/binder ratio as a determining factor in the alkaline activation of aluminosilicates. Cem Concr Res 42:1242–1251. https://doi.org/10.1016/j.cemconres.2012.05.019
Sabah E, Çelik MS (2002) Interaction of pyridine derivatives with sepiolite. J Colloid Interface Sci 251:33–38. https://doi.org/10.1006/jcis.2002.8394
Sethi H, Bansal PP, Shamra R (2018) Effect of addition of GGBS and glass powder on the properties of geopolymer concrete. Iran J Sci Technol Trans Civ Eng 1:1. https://doi.org/10.1007/s40996-018-0202-4
Swanepoel JC, Strydom CA (2002) Utilisation of fly ash in a geopolymeric material. Appl Geochem 17:1143–1148
Thunuguntla CS, Rao TDG (2018) Appraisal on strength characteristics of alkali-activated GGBFS with low concentrations of sodium hydroxide. Iran J Sci Technol Trans Civ Eng 42:231–243. https://doi.org/10.1007/s40996-018-0113-4
Torgal FP, Jalali S (2011) Eco-efficient construction and building materials. Springer, London. https://doi.org/10.1007/978-0-85729-892-8
van der Merwe EM, Prinsloo LC, Mathebula CL, Swart HC, Coetsee E, Doucet FJ (2014) Surface and bulk characterization of an ultrafine South African coal fly ash with reference to polymer applications. Appl Surf Sci 317:73–83. https://doi.org/10.1016/j.apsusc.2014.08.080
van Deventer JSJ, Provis JL, Duxon P, Lukey GC (2007) Reaction mechanism in the geopolymeric conversion of inorganic waste to useful products. J Hazard Mater 139:506–513. https://doi.org/10.1016/j.jhazmat.2006.02.044
van Jaarsveld JGS, van Deventer JSJ, Lukey GC (2002) The effect of composition and temperature on the properties of fly ash- and kaolinite-based geopolymers. Chem Eng J 89:63–67
Weil M, Jeske U, Dombrowski K, Buchwald A (2007) Sustainable design of geopolymers-evaluation of raw materials by the integration of economic and environmental aspects in the early phases of material development. In: Takata S, Umeda Y (ed) Advances in life cycle engineering for sustainable manufacturing businesses-proceedings of the 14th CIRP conference on life cycle engineering, Japan, pp 279–283
Zaharaki D, Komnitsas K, Perdikatsis V (2010) Use of analytical techniques for identification of inorganic polymer gel composition. J Mater Sci 45:2715–2724. https://doi.org/10.1007/s10853-010-4257-2
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The authors thank Anadolu University, Scientific Research Project Funding for their financial support (Project Number: 080249).
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Arioz, E., Arioz, O. & Kockar, O.M. Geopolymer Synthesis with Low Sodium Hydroxide Concentration. Iran J Sci Technol Trans Civ Eng 44 (Suppl 1), 525–533 (2020). https://doi.org/10.1007/s40996-019-00336-1
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DOI: https://doi.org/10.1007/s40996-019-00336-1