An Innovative Method for Sustainable Utilization of Blast-Furnace Slag in the Cleaner Production of One-Part Hybrid Cement Mortar
Tóm tắt
Hybrid cement (HC) can be defined as alkali activated-blended-Portland cement (PC). It is prepared by the addition of an alkaline solution to high-volume aluminosilicate-blended-PC. Although this cement exhibits higher mechanical performance compared to conventional blended one (aluminosilicate–PC blend), it represents lower commercial viability because of the corrosive nature of alkaline solution. Therefore, this study focuses on the preparing one-part HC using dry activator–based BFS (DAS). DAS was prepared by mixing sodium hydroxide (NaOH) with BFS at low water to BFS ratio, followed by drying and grinding to yield DAS-powder. Different contents of DAS (equivalent to 70 wt.% BFS and 1, 2, and 3 wt.% NaOH) were blended with 30 wt.% PC. A mixture containing 70 wt.% BFS and 30 wt.% PC was used as a reference sample. The mortar was adjusted at a sand–powder (BFS-PC and/or DAS-PC) weight ratio of 3:1. The microstructural analysis proved that DAS-powder is mainly composed of sodium calcium aluminosilicate–activated species and unreacted BFS. These species can interact again with water to form calcium aluminum silicate hydrate (C-A-S-H) and NaOH, suggesting that the DAS acts as a NaOH-carrier. One-part HC mortars having 1, 2, and 3 wt.% NaOH recorded 7th day compressive strength values of 82%, 44%, and 27%, respectively, higher than that of the control sample. At 180 days of curing, a significant reduction in compressive strength was observed within the HC mortar having 3 wt.% NaOH. This could be attributed to the increase of Ca (within C-S-H) replacement by Na, forming a Na-rich phase with lower binding capacity. The main hydration products within HC are C-S-H, C-A-S-H, and chabazite as part of the zeolite family.
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Juenger, 2011, Advances in alternative cementitious binders, Cem. Concr. Res., 41, 1232, 10.1016/j.cemconres.2010.11.012
Claisse, P.A. (2016). Civil Introduction to cement and concrete. Civil Engineering Materials, Butterworth-Heinemann.
Andrew, 2018, Global CO2 emissions from cement production, Earth Syst. Sci. Data, 10, 195, 10.5194/essd-10-195-2018
Gartner, 2004, Industrially interesting approaches to “low-CO2” cements, Cem. Concr. Res., 34, 1489, 10.1016/j.cemconres.2004.01.021
Argiz, 2015, Effect of silica fume fineness on the improvement of Portland cement strength performance, Constr. Build. Mater., 96, 55, 10.1016/j.conbuildmat.2015.07.092
Jeong, 2020, Acceleration of cement hydration by hydrophobic effect from supple-mentary cementitious materials: Performance comparison between silica fume and hydrophobic silica, Cem. Concr. Compos., 12, 103688, 10.1016/j.cemconcomp.2020.103688
Gupta, 2020, Combination of biochar and silica fume as partial cement replacement in mortar: Performance evaluation under normal and elevated temperature, Waste Biomass Valorization, 11, 2807, 10.1007/s12649-018-00573-x
Tang, 2020, Investigation of cementitious properties of different constituents in municipal solid waste incineration bottom ash as supplementary cementitious materials, J. Clean. Prod., 258, 120675, 10.1016/j.jclepro.2020.120675
Rivera, R.A., Sanjuán, M.Á., and Martín, D.A. (2020). Granulated Blast-Furnace Slag and Coal Fly Ash Ternary Portland Cements Optimization. Sustainability, 12.
Miller, 2018, Supplementary cementitious materials to mitigate greenhouse gas emissions from concrete: Can there be too much of a good thing?, J. Clean. Prod., 178, 587, 10.1016/j.jclepro.2018.01.008
Zhang, 2016, Optimizing design of high strength cement matrix with supplementary cementitious materials, Constr. Build. Mater., 120, 123, 10.1016/j.conbuildmat.2016.05.100
Lv, 2020, Resistance improvement of cement mortar containing silica fume to ex-ternal sulfate attacks at normal temperature, Constr. Build. Mater., 258, 119630, 10.1016/j.conbuildmat.2020.119630
Nasr, 2020, Influence of using high volume fraction of silica fume on me-chanical and durability properties of cement mortar, J. Eng. Sci. Technol., 15, 2494
Saha, 2020, Effect of sulphate exposure on mortar consisting of ferronickel slag aggregate and supple-mentary cementitious materials, J. Build. Eng., 28, 101012, 10.1016/j.jobe.2019.101012
Souza, 2020, Evaluation of external sulfate attack (Na2SO4 and MgSO4): Portland cement mortars containing siliceous supplementary cementitious materials, Rev. IBRACON Estrut. Mater., 13, 1, 10.1590/s1983-41952020000300013
Yingliang, 2020, Effect of superfine blast furnace slags on the binary cement containing high-volume fly ash, Powder Technol., 375, 539, 10.1016/j.powtec.2020.07.094
Harwalkar, 2014, Laboratory and field investigations on high-volume fly ash concrete for rigid pavement, Transp. Res. Rec., 2441, 121, 10.3141/2441-16
Yao, 2013, Anti-corrosion performance and microstructure analysis on a marine concrete utilizing coal combustion byproducts and blast furnace slag, Clean Technol. Environ. Policy, 16, 545, 10.1007/s10098-013-0654-y
Provis, 2015, Advances in understanding alkali-activated materials, Cem. Concr. Res., 78, 110, 10.1016/j.cemconres.2015.04.013
Hou, D. (2019). Green remediation by using low-carbon cement-based stabiliza-tion/solidification approaches. Sustainable Remediation of Contaminated Soil and Groundwater: Materials, Processes, and Assessment, Butterworth-Heinemann.
Hewlett, P.C., and Liska, M. (2019). Lea’s Chemistry of Cement and Concrete, Butterworth-Heinemann. [5th ed.].
Kolani, 2012, Hydration of slag-blended cements, Cem. Concr. Compos., 34, 1009, 10.1016/j.cemconcomp.2012.05.007
Sakai, 1992, Properties of granulated blast-furnace slag cement concrete, Spec. Publ., 132, 1367
Escalante, 2001, Reactivity of blast-furnace slag in Portland cement blends hydrated under different conditions, Cem. Concr. Res., 31, 1403, 10.1016/S0008-8846(01)00587-7
Binici, 2007, The effect of fineness on the properties of the blended cements incorporating ground granulated blast furnace slag and ground basaltic pumice, Constr. Build. Mater., 21, 1122, 10.1016/j.conbuildmat.2005.11.005
Zhu, 2012, Effect of particlesize of blast furnace slag on properties of portland cement, Procedia Eng., 27, 231, 10.1016/j.proeng.2011.12.448
Zhang, 2012, Use of nano-silica to increase early strength and reduce setting time of concretes with high volumes of slag, Cem. Concr. Compos., 34, 650, 10.1016/j.cemconcomp.2012.02.005
Zhang, 2012, Use of nano-silica to reduce setting time and increase early strength of concretes with high volumes of fly ash or slag, Constr. Build. Mater., 29, 573, 10.1016/j.conbuildmat.2011.11.013
Shaikh, 2019, Effect of nano silica on compressive strength and microstructures of high volume blast furnace slag and high volume blast furnace slag-fly ash blended pastes, Sustain. Mater. Technol., 20, e00111
Jiang, 2020, Mechanical and hydration properties of low clinker cement containing high volume superfine blast furnace slag and nano silica, Constr. Build. Mater., 238, 117683, 10.1016/j.conbuildmat.2019.117683
Shaikh, 2019, Effect of Nano Alumina on Compressive Strength and Microstructure of High Volume Slag and Slag-Fly Ash Blended Pastes, Front. Mater., 6, 90, 10.3389/fmats.2019.00090
Amer, 2021, Characterization of alkali-activated hybrid slag/cement concrete, Ain Shams Eng. J., 12, 135, 10.1016/j.asej.2020.08.003
Shagñay, S., Ramón, L., Bautista, M., Fernández-Álvarez, A., Velasco, F., and Torres-Carrasco, M. (2020). Eco-Efficient Hybrid Cements: Pozzolanic, Mechanical and Abrasion Properties. Appl. Sci., 10.
Puertas, 2017, Alkali-activated Portland blast-furnace slag cement: Mechanical properties and hydration, Constr. Build. Mater., 140, 119, 10.1016/j.conbuildmat.2017.02.092
Davidovits, J. (2020). Geopolymer Chemistry and Applications, Institut Géopolymère. [5th ed.].
Mohammed, 2020, A novel eco-sustainable approach for the cleaner production of ready-mix alkali activated cement using industrial solid wastes and organic-based activator powder, J. Clean. Prod., 256, 120705, 10.1016/j.jclepro.2020.120705
Gawwad, 2016, Preparation and characterization of one-part non-Portland cement, Ceram. Int., 42, 220, 10.1016/j.ceramint.2015.08.096
(2021, August 11). ASTM C230/C230M. Standard Specification for Flow Table for Use in Tests of Hydraulic Cement. Available online: https://www.astm.org/Standards/C230.htm.
(2021, August 11). ASTM C191. Standard Test Methods for Time of Setting of Hydraulic Cement by Vicat Needle. Available online: https://www.astm.org/Standards/C191.
(2021, August 11). ASTM C109/C109M. Standard Test Method for Compressive Strength of Hydraulic Cement Mortars. Available online: https://www.astm.org/Standards/C109.
Zuhua, 2009, Role of water in the synthesis of calcined kaolin-based geopolymer, Appl. Clay Sci., 43, 218, 10.1016/j.clay.2008.09.003
He, 2017, Effects of organosilane-modified polycarboxylate superplasticizer on the fluidity and hydration properties of cement paste, Constr. Build. Mater., 132, 112, 10.1016/j.conbuildmat.2016.11.122
Yliniemi, 2021, Influence of activator type on reaction kinetics, setting time, and compressive strength of alkali-activated mineral wools, J. Therm. Anal. Calorim., 144, 1129, 10.1007/s10973-020-09651-6
Elakneswaran, 2016, Hydration study of slag-blended cement based on thermodynamic considerations, Constr. Build. Mater., 124, 615, 10.1016/j.conbuildmat.2016.07.138
Liu, 2017, Assessment of pozzolanic activity of calcined coal-series kaolin, Appl. Clay Sci., 143, 159, 10.1016/j.clay.2017.03.038
Zhao, 2020, The particle-size effect of waste clay brick powder on its pozzolanic activity and properties of blended cement, J. Clean. Prod., 242, 118521, 10.1016/j.jclepro.2019.118521
Zibouche, 2013, Metakaolin-Slag-Clinker Blends, The role of Na+ or K+ as alkaline activators of these ternary blends, J. Am. Ceram. Soc., 96, 1991, 10.1111/jace.12272
Palomo, 2013, Variation in hybrid cements over time. Alkaline activation of fly ash-portland cement blends, Cem. Concr. Res., 52, 112, 10.1016/j.cemconres.2013.03.022
Palomo, 2013, Hydration kinetics in hybrid binders: Early reaction stages, Cem. Concr. Compos., 39, 82, 10.1016/j.cemconcomp.2013.03.025
Garcia-Lodeiro, I., Donatello, S., Fernández-Jiménez, A., and Palomo, Á. (2016). Hydration of hybrid alkaline cement containing a very large proportion of fly ash: A descriptive model. Materials, 9.
2016, Thermodynamic Stability of Ettringite Formed by Hydration of Ye’elimite Clinker, Adv. Mater. Sci. Eng., 2016, 9280131
Halaweh, M.A. (2006). Effect of Alkalis and Sulfates on Portland Cement Systems. [Ph.D. Thesis, University of South Florida].
Mohammed, 2019, Single and dual effects of magnesia and alumina nano-particles on strength and drying shrinkage of alkali activated slag, Constr. Build. Mater., 228, 116827, 10.1016/j.conbuildmat.2019.116827
Lothenbach, 2016, Influence of calcium to silica ratio on aluminium uptake in calcium silicate hydrate, Cem. Concr. Res., 85, 111, 10.1016/j.cemconres.2016.01.014
Jiang, 2020, Utilization of limestone powder and fly ash in blend-ed cement: Rheology, strength and hydration characteristics, Constr. Build. Mater., 232, 117228, 10.1016/j.conbuildmat.2019.117228
Wu, 2020, Application of X-Ray Micro-CT for Quantifying Degree of Hydration of Slag-Blended Cement Paste, J. Mater. Civ. Eng., 32, 04020008, 10.1061/(ASCE)MT.1943-5533.0003082
Chen, 2020, Coupling effect of γ-dicalcium silicate and slag on carbonation resistance of low carbon materials, J. Clean. Prod., 262, 121385, 10.1016/j.jclepro.2020.121385
Zhang, 2021, Effect of Na2O concentration and water/binder ratio on carbonation of alkali-activated slag/fly ash cements, Constr. Build. Mater., 269, 121258, 10.1016/j.conbuildmat.2020.121258
Boudissa, 2018, Use of clays in alkaline hybrid cement preparation. The role of bentonites, Mater. Lett., 233, 134, 10.1016/j.matlet.2018.08.098
Abdollahnejad, 2014, Compressive strength, microstructure and hydration products of hybrid alkaline cements, Mater. Res., 17, 829, 10.1590/S1516-14392014005000091
Hassan, 2018, Thermal activation of air cooled slag to create one-part alkali activated cement, Ceram. Int., 44, 14935, 10.1016/j.ceramint.2018.05.089
Mohamed, 2019, Recycling of slag and lead-bearing sludge in the cleaner production of alkali activated cement with high performance and microbial resistivity, J. Clean. Prod., 220, 568, 10.1016/j.jclepro.2019.02.144
Shi, C., Krivenko, P.V., and Roy, D. (2006). Alkali-Activated slag cement and concrete. Hydration and Microstructure of Alkali Activated Slag Cement, Taylor & Francis.
Hasegawa, 2009, Preparation of novel chabazite (CHA)-type zeolite layer on porous α-Al2O3 tube using template-free solution, J. Membr. Sci., 347, 193, 10.1016/j.memsci.2009.10.024
Zhang, N., Xin, Y., Li, Q., Ma, X., Qi, Y., Zheng, L., and Zhang, Z. (2019). Ion Exchange of One-Pot Synthesized Cu-SAPO-44 with NH4NO3 to Promote Cu Dispersion and Activity for Selective Catalytic Reduction of NOx with NH3. Catalysts, 9.