Comparison of the Environmental Impacts of Reactive Magnesia and Calcined Dolomite and Their Performance under Different Curing Conditions
Publication: Journal of Materials in Civil Engineering
Volume 30, Issue 11
Abstract
This study compared two binder systems composed of reactive magnesite cement (RMC) and calcined dolomite (D800), which were produced via the calcination of magnesite and dolomite at 800°C, respectively. The environmental impacts of the production of both binders were supported with an investigation of their strengths and microstructural development in concrete samples subjected to different curing conditions. The lower energy and emissions associated with D800 production led to reduced damage to human health and the ecosystem in comparison with RMC production. The mechanical performance of both binder systems depended on their mix composition and curing conditions. Both benefited from the use of high humidity (90%), whereas elevated temperatures (60°C) presented an advantage only in RMC samples. The combination of high humidity and temperature enabled increased MgO dissolution and enhanced hydration/carbonation in RMC samples, thereby leading to higher strengths. D800 samples revealed lower strengths due to their lower initial MgO contents and initial porosities. Results of this study indicated the importance of customized curing conditions depending on the mix design and binder component.
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Acknowledgments
The authors would like to acknowledge the financial support from Singapore Ministry of Education (MOE) Academic Research Fund Tier 1 (RG 113/14).
References
Altiner, M., and M. Yildirim. 2017a. “Influence of filler on the properties of magnesium oxychloride cement prepared from dolomite.” Emerg. Mater. Res. 6 (2): 265–269. https://doi.org/10.1680/jemmr.17.00012.
Altiner, M., and M. Yildirim. 2017b. “Preparation of periclase (MgO) nanoparticles from dolomite by pyrohydrolysis–calcination processes.” Asia-Pac. J. Chem. Eng. 12 (6): 842–857. https://doi.org/10.1002/apj.2123.
Altiner, M., and M. Yildirim. 2017c. “Study of using dolomite as starting material resource to produce magnesium oxychloride cement.” J. Adv. Concr. Technol. 15 (6): 269–277. https://doi.org/10.3151/jact.15.269.
An, J., and X. Xue. 2017. “Life-cycle carbon footprint analysis of magnesia products.” Resour. Conserv. Recycl. 119: 4–11. https://doi.org/10.1016/j.resconrec.2016.09.023.
ASTM. 2017. Standard test method for measurement of heat of hydration of hydraulic cementitious materials using isothermal conduction calorimetry. ASTM C1702-17. West Conshohocken, PA: ASTM.
Atkins, P. W. 2013. The elements of physical chemistry. 6th ed. Oxford, UK: Oxford University Press.
Bai, J., S. Wild, and B. Sabir. 2002. “Sorptivity and strength of air-cured and water-cured PC–PFA–MK concrete and the influence of binder composition on carbonation depth.” Cem. Concr. Res. 32 (11): 1813–1821. https://doi.org/10.1016/S0008-8846(02)00872-4.
Bertos, M. F., S. Simons, C. Hills, and P. Carey. 2004. “A review of accelerated carbonation technology in the treatment of cement-based materials and sequestration of CO2.” J. Hazard. Mater. 112 (3): 193–205. https://doi.org/10.1016/j.jhazmat.2004.04.019.
BSI (British Standards Institute). 2016. Methods of test cement. Determination of setting times and soundness. BS EN 196-3:2016. London: British Standards Institution.
Caceres, P. G., and E. K. Attiogbe. 1997. “Thermal decomposition of dolomite and the extraction of its constituents.” Miner. Eng. 10 (10): 1165–1176. https://doi.org/10.1016/S0892-6875(97)00101-5.
Chai, Q., and X. Zhang. 2010. “Technologies and policies for the transition to a sustainable energy system in China.” Energy 35 (10): 3995–4002. https://doi.org/10.1016/j.energy.2010.04.033.
Davies, P. J., and B. Bubela. 1973. “The transformation of nesquehonite into hydromagnesite.” Chem. Geol. 12 (4): 289–300. https://doi.org/10.1016/0009-2541(73)90006-5.
Dung, N., and C. Unluer. 2016. “Improving the performance of reactive MgO cement-based concrete mixes.” Constr. Build. Mater. 126: 747–758. https://doi.org/10.1016/j.conbuildmat.2016.09.090.
Ecoinvent. 2014. “The life cycle inventory data. Swiss Centre for Life Cycle Inventories, Duebendorf, Switzerland.” Brussels, Belgium: European Nuclear Society (ENS). Accessed August 2012. www.euronuclear.org/info/encyclopedia/coalequivalent.htm.
ETH-ESU (Eidgenössische Technische Hochschule-Energie Stoffe Umwelt). 1996. Ökoinventare von Energiesystemen. Schaffhausen, Switzerland: ESU Group, ETH Technical Univ. of Zürich.
Goedkoop, M., A. Schryver, M. Oele, S. Durksz, and D. de Roest. 2008. Introduction to LCA with SimaPro 7. Amersfoort, Netherlands: PRé Consultants.
Harada, T., F. Simeon, E. Z. Hamad, and T. A. Hatton. 2015. “Alkali metal nitrate-promoted high-capacity MgO adsorbents for regenerable capture at moderate temperatures.” Chem. Mater. 27 (6): 1943–1949. https://doi.org/10.1021/cm503295g.
ISO. 2006. Environmental management: Life cycle assessment—Principles and frameworkment. ISO 14040. Geneva: ISO.
Itatani, K., M. Shiobara, and F. S. Howell. 2002. “Effect of bimodal particle size distribution on the sintering of magnesium oxide powder.” Soc. Inorg. Mater. Jpn. 9 (301): 498–504. https://doi.org/10.11451/mukimate2000.9.498.
Jauffret, G., and F. P. Glasser. 2016. “Thermally activated dolomite as pozzolanic addition to portland cement.” Adv. Cem. Res. 28 (6): 378–388. https://doi.org/10.1680/jadcr.15.00110.
Jin, F., and A. Al-Tabbaa. 2014. “Characterisation of different commercial reactive magnesia.” Adv. Cem. Res. 26 (2): 101–113. https://doi.org/10.1680/adcr.13.00004.
Kim, J.-K., Y.-H. Moon, and S.-H. Eo. 1998. “Compressive strength development of concrete with different curing time and temperature.” Cem. Concr. Res. 28 (12): 1761–1773. https://doi.org/10.1016/S0008-8846(98)00164-1.
Kjellsen, K. O., and R. J. Detwiler. 1992. “Reaction kinetics of portland cement mortars hydrated at different temperatures.” Cem. Concr. Res. 22 (1): 112–120. https://doi.org/10.1016/0008-8846(92)90141-H.
Leemann, A., and F. Moro. 2017. “Carbonation of concrete: The role of CO2 concentration, relative humidity and CO2 buffer capacity.” Mater. Struct. 50 (1): 30. https://doi.org/10.1617/s11527-016-0917-2.
Li, J., Y. Zhang, S. Shao, and S. Zhang. 2015. “Comparative life cycle assessment of conventional and new fused magnesia production.” J. Clean. Prod. 91: 170–179. https://doi.org/10.1016/j.jclepro.2014.12.043.
Liska, M. 2010. Properties and applications of reactive magnesia cements in porous blocks. Ph.D. thesis, Dept. of Engineering, Univ. of Cambridge.
Liska, M., and A. Al-Tabbaa. 2009. “Ultra-green construction: Reactive magnesia masonry products.” Proc. ICE-Waste Resour. Manage. 162 (4): 185–196. https://doi.org/10.1680/warm.2009.162.4.185.
Maitra, S., A. Choudhury, H. S. Das, and M. J. Pramanik. 2005. “Effect of compaction on the kinetics of thermal decomposition of dolomite under non-isothermal condition.” J. Mater. Sci. 40 (18): 4749–4751. https://doi.org/10.1007/s10853-005-0843-0.
Mo, L., M. Deng, and M. Tang. 2010. “Effects of calcination condition on expansion property of MgO-type expansive agent used in cement-based materials.” Cem. Concr. Res. 40 (3): 437–446. https://doi.org/10.1016/j.cemconres.2009.09.025.
Mo, L., and D. K. Panesar. 2012. “Effects of accelerated carbonation on the microstructure of portland cement pastes containing reactive MgO.” Cem. Concr. Res. 42 (6): 769–777. https://doi.org/10.1016/j.cemconres.2012.02.017.
Mo, L., and D. K. Panesar. 2013. “Accelerated carbonation—A potential approach to sequester in cement paste containing slag and reactive MgO.” Cem. Concr. Compos. 43: 69–77. https://doi.org/10.1016/j.cemconcomp.2013.07.001.
Mo, L., F. Zhang, D. K. Panesar, and M. Deng. 2016. “Development of low-carbon cementitious materials via carbonating portland cement–fly ash–magnesia blends under various curing scenarios: A comparative study.” J. Clean. Prod. 163: 252–261. https://doi.org/10.1016/j.jclepro.2016.01.066.
Pade, C., and M. Guimaraes. 2007. “The uptake of concrete in a 100 year perspective.” Cem. Concr. Res. 37 (9): 1348–1356. https://doi.org/10.1016/j.cemconres.2007.06.009.
Peng, M. X., Z. H. Wang, Q. G. Xiao, F. Song, W. Xie, L. C. Yu, H. W. Huang, and S. J. Yi. 2017. “Effects of alkali on one-part alkali-activated cement synthesized by calcining bentonite with dolomite and .” Appl. Clay Sci. 139: 64–71. https://doi.org/10.1016/j.clay.2017.01.020.
Prokopski, G., and J. Halbiniak. 2000. “Interfacial transition zone in cementitious materials.” Cem. Concr. Res. 30 (4): 579–583. https://doi.org/10.1016/S0008-8846(00)00210-6.
Ramakrishnan, S., and P. Koltun. 2004. “Global warming impact of the magnesium produced in China using the Pidgeon process.” Resour. Conserv. Recycl. 42 (1): 49–64. https://doi.org/10.1016/j.resconrec.2004.02.003.
Ruan, S., J. Liu, E.-H. Yang, and C. Unluer. 2017. “Performance and microstructure of calcined dolomite and reactive magnesia-based concrete samples.” J. Mater. Civ. Eng. 29 (12): 04017236. https://doi.org/10.1061/(ASCE)MT.1943-5533.0002103.
Ruan, S., and C. Unluer. 2016. “Comparative life cycle assessment of reactive MgO and portland cement production.” J. Clean. Prod. 137: 258–273. https://doi.org/10.1016/j.jclepro.2016.07.071.
Ruan, S., and C. Unluer. 2017a. “Effect of air entrainment on the performance of reactive MgO and PC mixes.” Constr. Build. Mater. 142: 221–232. https://doi.org/10.1016/j.conbuildmat.2017.03.068.
Ruan, S., and C. Unluer. 2017b. “Influence of mix design on the carbonation, mechanical properties and microstructure of reactive MgO cement-based concrete.” Cem. Concr. Compos. 80: 104–114. https://doi.org/10.1016/j.cemconcomp.2017.03.004.
Ruan, S., and C. Unluer. 2017c. “Influence of supplementary cementitious materials on the performance and environmental impacts of reactive magnesia cement concrete.” J. Clean. Prod. 159: 62–73. https://doi.org/10.1016/j.jclepro.2017.05.044.
Sasaki, K., X. Qiu, Y. Hosomomi, S. Moriyama, and T. Hirajima. 2013. “Effect of natural dolomite calcination temperature on sorption of borate onto calcined products.” Microporous Mesoporous Mater. 171: 1–8. https://doi.org/10.1016/j.micromeso.2012.12.029.
Scrivener, K., R. Snellings, and B. Lothenbach. 2016. A practical guide to microstructural analysis of cementitious materials. Abingdon, UK: Taylor & Francis Group.
Szybilski, M., and W. Nocuń-Wczelik. 2015. “The effect of dolomite additive on cement hydration.” Procedia Eng. 108: 193–198. https://doi.org/10.1016/j.proeng.2015.06.136.
Unluer, C., and A. Al-Tabbaa. 2014. “Enhancing the carbonation of MgO cement porous blocks through improved curing conditions.” Cem. Concr. Res. 59: 55–65. https://doi.org/10.1016/j.cemconres.2014.02.005.
Warren, J. 2000. “Dolomite: Occurrence, evolution and economically important associations.” Earth-Sci. Rev. 52 (1): 1–81. https://doi.org/10.1016/S0012-8252(00)00022-2.
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Published In
Journal of Materials in Civil Engineering
Volume 30 • Issue 11 • November 2018
Copyright
©2018 American Society of Civil Engineers.
History
Received: Oct 24, 2017
Accepted: Apr 19, 2018
Published online: Aug 11, 2018
Published in print: Nov 1, 2018
Discussion open until: Jan 11, 2019
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