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An alternative for Ordinary Portland cement (OPC) consumption is the production and integration of green cement. In other words, the clinker consumption has to be replaced with new low-carbon binders. A possible solution was introduced by the geopolymerisation technology. However, the alkaline activation of geopolymers offers the possibility of obtaining greener materials with high properties, superior to OPC, but due to the high price of sodium silicate, their industrial use is limited. In the past few years, a new activator has been discovered, namely phosphoric acid. This study approaches the obtaining of coal ash-based geopolymers activated with acid solution cured at room temperature. Accordingly, phosphoric acid, 85% by mass, was diluted in distilled water to obtain a corresponding activation solution for H3PO4/Al2O3 ratio of 1.0 and two types of geopolymers were ambient cured (22°C ±2°C). Moreover, to evaluate the geopolymerisation potential of this system (coal ash - phosphoric acid), SEM and EDS analysis was performed to investigate their morphologic characteristics.
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Tom
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595--600
Opis fizyczny
Bibliogr. 27 poz., fot., rys., tab., wzory
Twórcy
- "Gheorghe Asachi” Technical University of Iasi, Blvd. Mangeron, No. 51, 700050, Iasi, Romania
autor
- "Gheorghe Asachi” Technical University of Iasi, Blvd. Mangeron, No. 51, 700050, Iasi, Romania
- Universiti Malaysia Perlis (UniMAP), Center of Excellence, Geopolymer & Green Technology (CeGeoGTech), School of Material Engineering, Perlis, Malaysia
autor
- "Gheorghe Asachi” Technical University of Iasi, Blvd. Mangeron, No. 51, 700050, Iasi, Romania
- "Gheorghe Asachi” Technical University of Iasi, Blvd. Mangeron, No. 51, 700050, Iasi, Romania
autor
- "Gheorghe Asachi” Technical University of Iasi, Blvd. Mangeron, No. 51, 700050, Iasi, Romania
autor
- "Gheorghe Asachi” Technical University of Iasi, Blvd. Mangeron, No. 51, 700050, Iasi, Romania
- Universiti Malaysia Perlis (UniMAP), Center of Excellence, Geopolymer & Green Technology (CeGeoGTech), School of Material Engineering, Perlis, Malaysia
Bibliografia
- [1] T. Luukkonen, A. Heponiemi, H. Runtti, J. Pesonen, J. Yliniemi, U. Lassi, Application of alkali-activated materials for water and wastewater treatment: a review. Rev. Environ. Sci. Biotechnol. 18, 271-297 (2019).
- [2] B.C. Mclellan, R.P. Williams, J. Lay, A. Van Riessen, G.D. Corder, Costs and carbon emissions for geopolymer pastes in comparison to ordinary portland cement. J. Clean. Prod. 19, 1080-1090 (2011). DOI: https://doi.org/10.1016/j.jclepro.2011.02.010
- [3] M. Nawaz, A. Heitor, M. Sivakumar, Geopolymers in construction - recent developments. Constr. Build. Mater. 260, 120472 (2020).
- [4] P. Vizureanu, D.D. Burduhos, A.V. Sandu, D.P. Burduhos, M.S. Baltatu, The Physical and Mechanical Characteristics of Geopolymers Using Mine Tailings as Precursors, in: P. Vizureanu, P. Krivenko (Eds.), Advances in Geopolymer-Zeolite Composites - Synthesis and Characterization. London, United Kingdom: In-Techaopen, 2021. DOI: https://doi.org/10.5772/intechopen.97807
- [5] Y. Wu, B. Lu, T. Bai, H. Wang, F. Du, Y. Zhang, L. Cai, C. Jiang, W. Wang, Geopolymer, green alkali activated cementitious material: Synthesis, applications and challenges. Constr. Build. Mater. 224, 930-949 (2019).
- [6] X.Y. Zhuang, L. Chen, S. Komarneni, C.H. Zhou, D.S. Tong, H.M. Yang, W.H. Yu, H. Wang, Fly ash-based geopolymer: clean production, properties and applications. J. Clean. Prod. 125, 253-267 (2016).
- [7] P. Vizureanu, D.D. Burduhos Nergis, Green Materials Obtained by Geopolymerization for a Sustainable Future, 2020, Materials Research Forum LLC, ed.; Materials Research Foundations: 105 Springdale Lane, Millersville, Pa 17551 USA. 90, ISBN 978-1-64490-112-0. DOI: https://doi.org/10.21741/9781644901137
- [8] J. Davidovits, Writing Standards For Geopolymers | Joseph Davidovits | Research Project Available online: https://www.research-gate.net/project/Writing-standards-for-geopolymers (accessed on May 16, 2021).
- [9] J. Zhao, L. Tong, B. Li, T. Chen, C. Wang, G. Yang, Y. Zheng, Eco-friendly geopolymer materials: a review of performance improvement, potential application and sustainability assessment. J. Clean. Prod. 307, 127085 (2021). DOI: https://doi.org/10.1016/j.jclepro.2021.127085
- [10] G.M. Fortes, R.R. Lourenço, M. Montini, J.B. Gallo, J. De Anchieta Rodrigues, Synthesis and Mechanical Characterization of Iron Oxide Rich Sulfobelite Cements Prepared Using Bauxite Residue. Mater. Res. 19, 276-284 (2016). DOI: https://doi.org/10.1590/1980-5373-Mr-2015-0180
- [11] H.K. Tchakouté, C.H. Rüscher, Mechanical and microstructural properties of metakaolin-based geopolymer cements from sodium waterglass and phosphoric acid solution as hardeners: A comparative study. Appl. Clay Sci. 140, 81-87, (2017). DOI: https://doi.org/10.1016/j.clay.2017.02.002
- [12] S. Louati, S. Baklouti, B. Samet, Geopolymers Based on Phosphoric Acid and Illito-Kaolinitic Clay. Adv. Mater. Sci. Eng. 2016, 2359759 (2016). DOI: https://doi.org/10.1155/2016/2359759
- [13] H. Lin, H. Liu, Y. Li, X. Kong, Properties and reaction mechanism of phosphoric acid activated metakaolin geopolymer at varied curing temperatures. Cem. Concr. Res. 144, 106425, (2021). DOI: https://doi.org/10.1016/j.cemconres.2021.106425
- [14] Y.S. Wang, Y. Alrefaei, J.G. Dai, Silico-aluminophosphate and alkali-aluminosilicate geopolymers: A comparative review. Front. Mater. 6, 106, (2019). DOI: https://doi.org/10.3389/fmats.2019.00106
- [15] D.D.B. Nergis, M.M.A.B. Abdullah, P. Vizureanu, M.F.M. Tahir, Geopolymers and Their Uses: Review. IOP Conf. Ser. Mater. Sci. Eng. 374, 12019, (2018). DOI: https://doi.org/10.1088/1757-899x/374/1/012019.
- [16] Y.S. Wang, Y. Alrefaei, J.G. Dai, Improvement of early-age properties of silico-aluminophosphate geopolymer using dead burnt magnesia. Constr. Build. Mater. 217, 1-11 (2017). DOI: https://doi.org/10.1016/j.conbuildmat.2019.05.050
- [17] I. Denry, L.T. Kuhn, Design and characterization of calcium phosphate ceramic scaffolds for bone tissue engineering. In Proceedings of the Dental Materials, Elsevier Inc. 32, 43-53 (2016).
- [18] S. Luhar, T.W. Cheng, D. Nicolaides, I. Luhar, D. Panias, K. Sakkas, Valorisation of glass wastes for the development of geopolymer composites - Durability, thermal and microstructural properties: A review. Constr. Build. Mater. 222, 673-687 (2019).
- [19] D.D. Burduhos Nergis, P. Vizureanu, I. Ardelean, A.V. Sandu, O.C. Corbu, E. Matei, Revealing the Influence of Microparticles on Geopolymers’ Synthesis and Porosity. Materials (Basel). 13 (14), 3211 (2020). DOI: https://doi.org/10.3390/ma13143211
- [20] D.D.B. Nergis, M.M.A.B. Abdullah, A.V. Sandu, P. Vizureanu, XRD and TG-DTa study of new alkali activated materials based on fly ash with sand and glass powder. Materials (Basel). 13(2), 343 (2020). DOI: https://doi.org/10.3390/ma13020343
- [21] https://www.elemental.eu/en/548-superfine-white-kaolin-clay.html (accessed on May 27, 2021).
- [22] Y. Wang, X. Li, B. Zhu, P. Chen, Microstructure evolution during the heating process and its effect on the elastic properties of CAC bonded alumina castables. Ceram. Int. 42, 11355-11362 (2016). DOI: https://doi.org/10.1016/j.ceramint.2016.04.058
- [23] Y.M. Liew, C.Y. Heah, A.B.M. Mustafa, H. Kamarudin, Structure and properties of clay-based geopolymer cements: A review. Prog. Mater. Sci. 83, 595-629, (2016). DOI: https://doi.org/10.1016/j.pmatsci.2016.08.002
- [24] S. Luhar, T.W. Cheng, D. Nicolaides, I. Luhar, D. Panias, K. Sakkas, Valorisation of glass wastes for the development of geopolymer composites - Durability, thermal and microstructural properties: A review. Constr. Build. Mater. 222, 673-687 (2019).
- [25] O. Corbu, A.M. Ioani, M.M.A.B. Abdullah, V. Meiţa, H. Szilagyi, A.V. Sandu, The pozzoolanic activity level of powder waste glass in comparisons with other powders. in Proceedings of the Key Engineering Materials; Trans Tech Publications Ltd 660, 237-243 (2015).
- [26] J.J.A. Baldovino, R.L.S. Izzo, J.L. Rose, M.D.I. Domingos, Strength, durability, and microstructure of geopolymers based on recycled-glass powder waste and dolomitic lime for soil stabilization. Constr. Build. Mater. 271, 121874 (2021). DOI: https://doi.org/10.1016/j.conbuildmat.2020.121874
- [27] E. Negahban, A.B. Jay Sanjayan, Pore gradation effect on Portland cement and geopolymer concretes, Cem. Concr. Compos. 122, 104141, (2021).
Uwagi
Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-f2d3fb36-6248-4637-b949-bbc12645378f