Abstract
The present work studies gel evolution and microstructure of geopolymers synthesized with volcanic ash (VA) and blast furnace slag (BFS). The synthesis parameters such as BFS proportions on geopolymer formation were investigated. Gel evolution and microstructure of the geopolymers were studied by FTIR, X-ray diffraction (XRD), 29Si NMR spectroscopy and scanning electron microscopy measurements. Silicate gels (N–S–H) were mainly formed in VA-based geopolymers of low compressive strength (14.07 MPa). While with VA and BFS each account for 50%, VA-BFS–based geopolymers possessed a compressive strength of 55.6 MPa, as well as the homogeneous C–(A)–S–H and N–A–S–H gels were formed. The C–(A)–S–H and N–A–S–H gels show synergistic effects on the mechanical property of the geopolymers. This work provides a clue for the synthesis of geopolymers with superior mechanical properties in areas of architecture.
Graphical Abstract
Detailed characterization gel evolution and microstructure of geopolymers synthesized with volcanic ash (VA) and blast furnace slag (BFS) were studied. Silicate gels (N–S–H) were mainly formed in VA-based geopolymers of low compressive strength (14.07 MPa). When VA and BFS each account for 50%, VA-BFS–based geopolymers possessed a compressive strength of 55.6 MPa, as well as the homogeneous C–(A)–S–H and N–A–S–H gels formed. Synthesis protocol for VA-BFS–based geopolymers.
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References
Abdulkareem M, Havukainen J, Nuortila-Jokinen J, Horttanainen M (2021) Environmental and economic perspective of waste-derived activators on alkali-activated mortars. J Clean Prod 280:124651. https://doi.org/10.1016/j.jclepro.2020.124651
Bayiha BN, Billong N, Yamb E et al (2019) Effect of limestone dosages on some properties of geopolymer from thermally activated halloysite. Constr Build Mater 217:28–35. https://doi.org/10.1016/j.conbuildmat.2019.05.058
Bernal SA, Provis JL, Walkley B et al (2013) Gel nanostructure in alkali-activated binders based on slag and fly ash, and effects of accelerated carbonation. Cem Concr Res 53:127–144. https://doi.org/10.1016/j.cemconres.2013.06.007
Bondar D, Lynsdale CJ, Milestone NB et al (2011) Effect of type, form, and dosage of activators on strength of alkali-activated natural pozzolans. Cem Concr Compos 33:251–260. https://doi.org/10.1016/j.cemconcomp.2010.10.021
Davidovits J (1989) Geopolymers and geopolymeric materials. J Therm Anal 35:429–441. https://doi.org/10.1007/BF01904446
Djobo JNY, Stephan D (2021) Control of the setting reaction and strength development of slag-blended volcanic ash-based phosphate geopolymer with the addition of boric acid. J Aust Ceram Soc 57:1145–1154. https://doi.org/10.1007/s41779-021-00610-4
Djobo JNY, Elimbi A, Tchakouté HK, Kumar S (2017) Volcanic ash-based geopolymer cements/concretes: the current state of the art and perspectives. Environ Sci Pollut Res 24:4433–4446. https://doi.org/10.1007/s11356-016-8230-8
Duxson P, Provis JL, Lukey GC et al (2005) 29Si NMR study of structural ordering in aluminosilicate geopolymer gels. Langmuir 21:3028–3036. https://doi.org/10.1021/la047336x
Ekolu SO (2016) A review on effects of curing, sheltering, and CO2 concentration upon natural carbonation of concrete. Constr Build Mater 127:306–320. https://doi.org/10.1016/j.conbuildmat.2016.09.056
Farquharson JI, Tuffen H, Wadsworth FB, et al (2022) In-conduit capture of sub-micron volcanic ash particles via turbophoresis and sintering. Nat Commun 13. https://doi.org/10.1038/s41467-022-32522-7
Fernandez-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-Jiménez A, Palomo A (2005) Alkali activated fly ashes. Structural studies through Mid-Infrared Spectroscopy. Microporous Mesoporous Mat 86:207–214. https://doi.org/10.1016/j.micromeso.2005.05.057
García-Lodeiro I, Fernández-Jiménez A, Blanco MT, Palomo A (2008) FTIR study of the sol–gel synthesis of cementitious gels: C-S–H and N–A–S–H. J Sol-Gel Sci Technol 45:63–72. https://doi.org/10.1007/s10971-007-1643-6
García-Lodeiro I, Fernández-Jiménez A, Palomo A, Macphee DE (2010) Effect of calcium additions on N-A–S–H cementitious gels. J Am Ceram Soc 93:1934–1940. https://doi.org/10.1111/j.1551-2916.2010.03668.x
Garcia-Lodeiro I, Palomo A, Fernández-Jiménez A, Macphee DE (2011) Compatibility studies between N-A-S-H and C-A-S-H gels. Study in the ternary diagram Na2O–CaO–Al2O3–SiO2–H2O. Cem Concr Res 41:923–931. https://doi.org/10.1016/j.cemconres.2011.05.006
Garcia-Lodeiro I, Fernandez-Jimenez A, Palomo A (2013) Hydration kinetics in hybrid binders: early reaction stages. Cem Concr Compos 39:82–92. https://doi.org/10.1016/j.cemconcomp.2013.03.025
Garcia-Lodeiro I, Palomo A, Fernández-Jiménez A (2015) An overview of the chemistry of alkali-activated cement-based binders. In: Labrincha JA, Leonelli C et al (eds) Pacheco-Torgal F. Woodhead Publishing, Oxford, pp 19–47
Glasser LSD, Harvey G (1984) The gelation behaviour of aluminosilicate solutions containing Na+, K+, Cs+, and Me4N+. J Chem Soc Chem Commun 1250–1252. https://doi.org/10.1039/C39840001250
Glasser LSD, Lachowski EE (1980) Silicate species in solution. Part 1. Experimental observations. J Chem Soc Dalt Trans 393–398. https://doi.org/10.1039/DT9800000393.
Glukhovsky VD (1994) Ancient, modern and future concretes. In: Proceedings of the First International Conference on Alkaline Cements and Concretes. Kiev, Ukraine 1–9
Horwell CJ, Baxter PJ (2006) The respiratory health hazards of volcanic ash: a review for volcanic risk mitigation. Bull Volcanol 69:1–24. https://doi.org/10.1007/s00445-006-0052-y
Huang T, Zhang S, Liu L (2019) Immobilization of trace heavy metals in the electrokinetics-processed municipal solid waste incineration fly ashes and its characterizations and mechanisms. J Environ Manage 232:207–218. https://doi.org/10.1016/j.jenvman.2018.11.051
Huang T, Zhou L, Chen L et al (2020) Mechanism exploration on the aluminum supplementation coupling the electrokinetics-activating geopolymerization that reinforces the solidification of the municipal solid waste incineration fly ashes. Waste Manag 103:361–369. https://doi.org/10.1016/j.wasman.2019.12.048
Huang T, Zhou L, Cao Z et al (2021) A microwave irradiation-persulfate-formate system for achieving the detoxification and alkali-activated composite geopolymerization of the chromate-contaminated soil. Ecotoxicol Environ Saf 217:112233. https://doi.org/10.1016/j.ecoenv.2021.112233
Jeong Y, Park H, Jun Y et al (2016) Influence of slag characteristics on strength development and reaction products in a CaO-activated slag system. Cem Concr Compos 72:155–167. https://doi.org/10.1016/j.cemconcomp.2016.06.005
Kamseu E, Alzari V, Nuvoli D et al (2021) Dependence of the geopolymerization process and end-products to the nature of solid precursors: challenge of the sustainability. J Clean Prod 278:123587. https://doi.org/10.1016/j.jclepro.2020.123587
L’Hôpital E, Lothenbach B, Scrivener K, Kulik DA (2016) Alkali uptake in calcium alumina silicate hydrate (CASH). Cem Concr Res 85:122–136. https://doi.org/10.1016/j.cemconres.2016.03.009
Le Saout G, Ben Haha M, Winnefeld F, Lothenbach B (2011) Hydration degree of alkali-activated slags: a 29Si NMR study. J Am Ceram Soc 94:4541–4547. https://doi.org/10.1111/j.1551-2916.2011.04828.x。
Lee SK, Stebbins JF (1999) The degree of aluminum avoidance in aluminosilicate glasses. Am Mineral 84:937–945. https://doi.org/10.2138/am-1999-5-630
Lemougna PN, Wang K, Tang Q et al (2018) Review on the use of volcanic ashes for engineering applications. Resour Conserv Recycl 137:177–190. https://doi.org/10.1016/j.resconrec.2018.05.031
Lemougna PN, Nzeukou A, Aziwo B et al (2020) Effect of slag on the improvement of setting time and compressive strength of low reactive volcanic ash geopolymers synthetized at room temperature. Mater Chem Phys 239:122077. https://doi.org/10.1016/j.matchemphys.2019.122077
Li J, Yang L, Rao F et al (2022) Influence of Ca on the mechanical properties and microstructures of slag-fly ash geopolymers. Miner Miner Mater 1:2. https://doi.org/10.20517/mmm.2021.02
Mansur HS, Sadahira CM, Souza AN, Mansur AAP (2008) FTIR spectroscopy characterization of poly (vinyl alcohol) hydrogel with different hydrolysis degree and chemically crosslinked with glutaraldehyde. Mater Sci Eng C 28:539–548. https://doi.org/10.1016/j.msec.2007.10.088
Miller SA, John VM, Pacca SA, Horvath A (2018) Carbon dioxide reduction potential in the global cement industry by 2050. Cem Concr Res 114:115–124. https://doi.org/10.1016/j.cemconres.2017.08.026
Myers RJ, Bernal SA, San Nicolas R, Provis JL (2013) Generalized structural description of calcium–sodium aluminosilicate hydrate gels: the cross-linked substituted tobermorite model. Langmuir 29:5294–5306. https://doi.org/10.1021/la4000473
Nath P, Sarker PK (2017) Flexural strength and elastic modulus of ambient-cured blended low-calcium fly ash geopolymer concrete. Constr Build Mater 130:22–31. https://doi.org/10.1016/j.conbuildmat.2016.11.034
Nuaklong P, Sata V, Chindaprasirt P (2018) Properties of metakaolin-high calcium fly ash geopolymer concrete containing recycled aggregate from crushed concrete specimens. Constr Build Mater 161:365–373. https://doi.org/10.1016/j.conbuildmat.2017.11.152
Olejniczak Z, Łęczka M, Cholewa-Kowalska K et al (2005) 29Si MAS NMR and FTIR study of inorganic–organic hybrid gels. J Mol Struct 744:465–471. https://doi.org/10.1016/j.molstruc.2004.11.069
Palomo Á, Kavalerova E, Fernández-Jiménez A et al (2015) A Review on Alkaline Activation: New Analytical Perspectives 64:e022. https://doi.org/10.3989/mc.2014.00314
Palomo A, Fernández-Jimenez A, Kovalchuck G (2005) Some key factors affecting the alkali activation of fly ash. In: 2nd International Symposium of Non‑Traditional Cement and Concrete. Brno. Czech Republic.
Pan B, Cheng T, Xu J, et al (2021) Knowledge base of Cenozoic volcanoes in China. Geol Soc London, Spec Publ 510. https://doi.org/10.1144/SP510-2020-147
Perez-Cortes P, Escalante-Garcia JI (2020) Gel composition and molecular structure of alkali-activated metakaolin-limestone cements. Cem Concr Res 137:106211. https://doi.org/10.1016/j.cemconres.2020.106211
Provis JL (2018) Alkali-activated materials. Cem Concr Res 114:40–48. https://doi.org/10.1016/j.cemconres.2017.02.009
Provis JL, Van Deventer JSJ (2013) Alkali activated materials: state-of-the-art report, RILEM TC 224-AAM. Springer Science & Business Media.
Rahmiati T, Azizli KA, Man Z, et al (2014) Effect of solid/liquid ratio during curing time fly ash based geopolymer on mechanical property. In: Materials science forum. Materials Science Forum 120–124
Richardson IG (1999) The nature of CSH in hardened cements. Cem Concr Res 29:1131–1147. https://doi.org/10.1016/S0008-8846(99)00168-4
Rose WI, Durant AJ (2009) Fine ash content of explosive eruptions. J Volcanol Geotherm Res 186:32–39. https://doi.org/10.1016/j.jvolgeores.2009.01.010
Sagoe-Crentsil K, De Silva P (2015) Alkali-activated binders: early age nucleation reactions, chemical phase evolution and their implications on system properties. J Chinese Ceram Soc 43:1449–1457. https://doi.org/10.14062/j.issn.0454-5648.2015.10.15
Singh PS, Bastow T, Trigg M (2005) Structural studies of geopolymers by 29 Si and 27 Al MAS-NMR. J Mater Sci 40:3951–3961. https://doi.org/10.1007/s10853-005-1915-x。
Song D, Huang T, Fang Q et al (2021) Feasibility exploration on the geopolymerization activation of volcanic tuff, parametrical optimization, and reaction mechanisms. J Mater Res Technol 11:618–632. https://doi.org/10.1016/j.jmrt.2021.01.029
Tchakoute HK, Ruescher CH, Kamseu E et al (2017) The influence of gibbsite in kaolin and the formation of berlinite on the properties of metakaolin-phosphate-based geopolymer cements. Mater Chem Phys 199:280–288. https://doi.org/10.1016/j.matchemphys.2017.07.020
Temuujin J, van Riessen A, Williams R (2009) Influence of calcium compounds on the mechanical properties of fly ash geopolymer pastes. J Hazard Mater 167:82–88. https://doi.org/10.1016/j.jhazmat.2008.12.121
Tian X, Rao F, Morales-Estrella R, Song S (2020) Effects of aluminum dosage on gel formation and heavy metal immobilization in alkali-activated municipal solid waste incineration fly ash. Energy Fuels 34:4727–4733. https://doi.org/10.1021/acs.energyfuels.9b04493
Tian X, Xu W, Song S et al (2020) Effects of curing temperature on the compressive strength and microstructure of copper tailing-based geopolymers. Chemosphere 253:126754. https://doi.org/10.1016/j.chemosphere.2020.126754
Tian X, Rao F, León-Patiño CA, Song S (2021) Co-disposal of MSWI fly ash and spent caustic through alkaline-activation consolidation. Cem Concr Compos 116:103888. https://doi.org/10.1016/j.cemconcomp.2020.103888
Tripathy SK, Dasu J, Murthy YR et al (2020) Utilisation perspective on water quenched and air-cooled blast furnace slags. J Clean Prod 262:121354. https://doi.org/10.1016/j.jclepro.2020.121354
Walkley B, San Nicolas R, Sani M-A et al (2016) Phase evolution of C-(N)-ASH/NASH gel blends investigated via alkali-activation of synthetic calcium aluminosilicate precursors. Cem Concr Res 89:120–135. https://doi.org/10.1016/j.cemconres.2016.08.010
Wan Q, Zhang Y, Zhang R (2020) Using mechanical activation of quartz to enhance the compressive strength of metakaolin based geopolymers. Cem Concr Compos 111. https://doi.org/10.1016/j.cemconcomp.2020.103635
Wang W, Zhao Y, Bai H et al (2018) Methylene blue removal from water using the hydrogel beads of poly (vinyl alcohol)-sodium alginate-chitosan-montmorillonite. Carbohydr Polym 198:518–528. https://doi.org/10.1016/j.carbpol.2018.06.124
Weng L, Sagoe-Crentsil K (2007) Dissolution processes, hydrolysis and condensation reactions during geopolymer synthesis: Part I—Low Si/Al ratio systems. J Mater Sci 42:2997–3006. https://doi.org/10.1007/s10853-006-0820-2
Weng L, Sagoe-Crentsil K, Brown T, Song S (2005) Effects of aluminates on the formation of geopolymers. Mater Sci Eng B 117:163–168. https://doi.org/10.1016/j.mseb.2004.11.008
Yip CK, Lukey GC, van Deventer JSJ (2005) The coexistence of geopolymeric gel and calcium silicate hydrate at the early stage of alkaline activation. Cem Concr Res 35:1688–1697. https://doi.org/10.1016/j.cemconres.2004.10.042
Zhang J, Shi C, Zhang Z, Ou Z (2017) Durability of alkali-activated materials in aggressive environments: a review on recent studies. Constr Build Mater 152:598–613. https://doi.org/10.1016/j.conbuildmat.2017.07.027
Zhao X, Liu C, Zuo L et al (2019) Investigation into the effect of calcium on the existence form of geopolymerized gel product of fly ash based geopolymers. Cem Concr Compos 103:279–292. https://doi.org/10.1016/j.cemconcomp.2018.11.019
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Project supported by the National Natural Science Foundation of China (Project No. 51974093) and the Minjiang Scholar Talent Foundation of Fujian Province (Grant No. GXRC-20067).
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YZ: Data curation, methodology, writing—review and editing. FR: conceptualization, supervision, writing—reviewing and editing, corresponding author. XT: conceptualization, supervision, writing—review and editing. SL: data curation, visualization, writing—original draft. All the authors provided critical feedback and helped shape the research, analysis and manuscript.
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Highlights
• VA-BFS–based geopolymers with superior mechanical properties were synthesized.
• The incorporation of BFS promoted the formation of new C–(A)–S–H gels.
• Formation of N–A–S–H and C–(A)–S–H synergistic gels strengthens the microstructure of geopolymers.
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Zheng, Y., Rao, F., Tian, X. et al. Synergistic gel formation in geopolymers of superior mechanical strength synthesized with volcanic ash and slag. Environ Sci Pollut Res 30, 26244–26255 (2023). https://doi.org/10.1007/s11356-022-23877-x
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DOI: https://doi.org/10.1007/s11356-022-23877-x