The Properties of Steel Slag Bricks Prepared by both Alkali Activation and Accelerated Carbonation

Abstract:

The physical and chemical evolutions, including strength, porosity, chemical and mineral compositions, of properties of steel slag bricks prepared by both alkali activation and accelerated carbonation were investigated. The results show that alkali activation provides the initial properties, while accelerated carbonation plays a dominant role in such final performances as strength, porosity, chemical and mineral compositions of steel slag bricks. The steel slag bricks with a compressive strength of 33.8MPa, carbonation degree of 8.92% and porosity of 23.25% were successfully prepared after accelerated carbonation curing (T=50°C, RH=60%, P=0.25MPa, ρ_CO2=80% by volume) for 120min.

• Periodical: Key Engineering Materials (Volume 509)
• Pages: 113-118
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.509.113
• Online since: April 2012
• Authors: Wen Sheng Zhang, Di Shi, Zhong Jun Shao, Jia Yuan Ye, Yuan Wang
• Keywords: Accelerated Carbonation, Alkali Activation, Brick, Property Analysis, Steel Slag

References

[1] M.F. Bertos, S.J.R. Simons, C.D. Hills, et al, A Review of Accelerated Carbonation Technology in the Treatment of Cement-based Materials and Sequestration of CO2, J. J Hazard Mater. B112 (2004) 193-205.

DOI: 10.1016/j.jhazmat.2004.04.019

[2] D.N. Huntzinger, J.S. Gierke, L.L. Sutter, et al, Mineral Carbonation for Carbon Sequestration in Cement Kiln Dust from Waste Piles, J. J Hazard Mater. 168 (2009) 31-37.

DOI: 10.1016/j.jhazmat.2009.01.122

[3] J.C. Picot, D. Cassard, F. Maldan, et al, Worldwide Potential for Ex-situ Mineral Carbonation, J. Energy Procedia. 4 (2011) 2971-2977.

DOI: 10.1016/j.egypro.2011.02.206

[4] B. Bonfils, F. Bourgeois, C. Julcour, et al, Understanding the Chemistry of Direct Aqueous Carbonation with Additives through Geochemical Modeling, J. Energy Procedia. 4 (2011) 3809-3816.

DOI: 10.1016/j.egypro.2011.02.316

[5] C.J. Shi, P.V. Krivenko, D. Roy, Alkali-activated cements and concretes, Taylor & Francis, New York, 2006, pp.44-51.

DOI: 10.4324/9780203390672

[6] C. Kunzler, N. Alves, E. Pereira, et al, CO2 Storage with Indirect Carbonation Using Industrial Waste, J. Energy Procedia. 4 (2011) 1010-1017.

DOI: 10.1016/j.egypro.2011.01.149

[7] A. Van Zomeren, S.R. Van der Laan, H.B.A. Kobesen, et al, Changes in Mineralogical and Leaching Properties of Converter Steel Slag Resulting from Accelerated Carbonation at Low CO2 Pressure, J. Waste Manage. 31 (2011) 2236-2244.

DOI: 10.1016/j.wasman.2011.05.022

[8] R. Baciocchi, G. Costa, A. Polettini, et al, Influence of Particle Size on the Carbonation of Stainless Steel Slag for CO2 Storage, J. Energy Procedia. 4 (2011) 4985-4992.

DOI: 10.1016/j.egypro.2009.02.314

[9] R. Baciocchi, G. Costa, E.D. Bartolomeo, et al, Carbonation of Stainless Steel Slag as a Process for CO2 Storage and Slag Valorization, J. Waste Biomass Valor. 1 (2010) 467-477.

DOI: 10.1007/s12649-010-9047-1

[10] N.R. Yang, W.H. Yue. The Handbook of Inorganic Matalloid Materials Atlas, Wuhan University of Technology Press, Wuhan, 2000, pp.201-406.

[11] CH.F. Chang, J.W. Chen, The Experimental Investigation of Concrete Carbonation Depth, J. Cement Concrete Res. 36 (2006) 1760-1767.

DOI: 10.1016/j.cemconres.2004.07.025

[12] E.E. Chang, CH.H Chen, Y.H. Chen, et al, Performance Evaluation for Carbonation of Steel-making Slags in a Slurry Reactor, J. J Hazard Mater. 186 (2011) 558-564.

DOI: 10.1016/j.jhazmat.2010.11.038

[13] T. Van Gerven, G. Cornelis, E. Vandoren, et al, Effects of Carbonation and Leaching on Porosity in Cement-bound Waste, J. Waste Manage. 27 (2007) 977-985.

DOI: 10.1016/j.wasman.2006.05.008

[14] P. Pipilikaki, M. Beazi-Katsioti, The Assessment of Porosity and Pore Size Distribution of Limestone Portland Cement Pastes, J. Constr Build Mater. 23 (2009) 1966-1970.

DOI: 10.1016/j.conbuildmat.2008.08.028