Development of Composites from Iron-Rich Galvanized Sludge with Slag Based Cementitious Material and Waste Foundry Sand

Abstract:

Galvanized sludge (GS) generated from the cable wires manufacturing industry, waste foundry sand (WFS) from steel manufacturing and granulated blast furnace slag (GBFS), are the wastes that pollute the environment. This study investigated the use of these three materials to develop a value-added composite that can be utilized in the building and construction industry. The GS was stabilized with alkaline activated WFS and alkaline activated GBFS. The chemical composition of the materials was studied by analyzing the elemental composition, mineralogy, and micrography. To determine the optimum mix design, the unconfined compressive strength and water absorption tests were carried out on the developed composites. The GS was predominated with ferric oxide, while the WFS was laden with mainly, silicon dioxide and aluminum oxides. The results obtained showed that alkaline activated WFS yielded the highest UCS of 3.3 MPa, as compared to 1 MPa from the GBFS binder. The microstructure of stabilized GS changed from heterogeneous particles to finer homogeneous particles. The WFS stabilized GS can be used for different applications, for semi-load bearing applications.

• Periodical: Key Engineering Materials (Volume 922)
• Pages: 183-189
• DOI: https://doi.org/10.4028/p-d34n70
• Online since: June 2022
• Authors: Tebogo Mashifana*
• Keywords: Galvanized Sludge, Waste Foundry Sand, Waste to Resource, Waste Valorization

References

[1] P. Iloh P, G. Fanourakis, A. Ogra (2019): Sustainability, 11(2019).

[2] A.K. Abrol, M. Kumar and T. Chopra: Doctoral dissertation, (2014).

[3] R. Siddique, G. Kaur, A. Rajor: Conservation and Recycling, 54 (2010), pp.1027-1036.

[4] A. Deng and P.J. Tikalsky: Waste Management, 28(2008), pp.2161-2170.

[5] N. Doğan-Sağlamtimur: Advances in Civil Engineering, (2018).

[6] G. Singh and R. Siddique: Construction and building materials, 26(2012), pp.416-422.

[7] A. Branavan and K.M.C. Konthesingha: In 10th International Conference on Structural Engineering and Construction Management (ICSECM), (2019), pp.106-113.

[8] A. Rashad: Journal of Building Engineering, 5 (2016), pp.119-141.

[9] A.M. Rashad: Reviews on Advanced Materials Science, 44 (2016).

[10] M. Schneider, M. Romer, M. Tschudin and H. Bolio: Cement and concrete research, 41 (2011), pp.642-650.

DOI: 10.1016/j.cemconres.2011.03.019

[11] G.C. Ulubeyli and R. Artir: Procedia-social and behavioral sciences, 195 (2015), pp.2191-2198.

DOI: 10.1016/j.sbspro.2015.06.297

[12] R.S. Edwin, F. Balany, T.S. Putri and I.P. Tamburaka: International Journal of Materials Science and Engineering, 7 (2019), pp.20-25.

[13] S. Kim, M. Usman, C. Park and A. Hanif: Journal of Building Engineering, 33 (2021), p.101641.

[14] E. Cokca, V. Yazici and V. Ozaydin: Geotechnical and geological engineering, 27(2009), pp.489-499.

[15] J. Davidovits: Journal of Materials education, 16 (1994), pp.91-91.

[16] A.M. Rashad: Construction and Building Materials, 41 (2013), pp.751-765.

[17] A. Nikolov, H. Nugteren and I. Rostovsky: Construction and Building Materials, 243 (2020), p.118257.

DOI: 10.1016/j.conbuildmat.2020.118257

[18] P. Duxson, A. Fernández-Jiménez, J.L. Provis, G.C. Lukey, A. Palomo and J.S. van Deventer: Journal of materials science, 42(2007), pp.2917-2933.

DOI: 10.1007/s10853-006-0637-z

[19] F. Pacheco-Torgal, J.P. Castro-Gomes and S. Jalali: Construction and Building Materials, 22 (2008), pp.1939-1949.

DOI: 10.1016/j.conbuildmat.2007.07.015

[20] H. Xu, J.S.J. van Deventer and G.C. Lukey: Industrial & Engineering Chemistry Research, 40(2001), pp.3749-3756.

[21] C.J. Xiong, C.H. Ban, X. Pei and Z. Fang: China Building Materials Academy, (2004), pp.309-317.

[22] K.A. Komnitsas2011: Procedia Engineering, 21 (2011), pp.1023-1032.

[23] R. Li, Y. Zhou, C. Li, S. Li and Z. Huang: Construction and Building Materials, 213 (2019), pp.43-50.