Development of Sustainable Cementitious Binder Utilizing Silicomanganese Fumes
- 17 Downloads
Sustainable alkali activated mortar was developed in this study utilizing silicomanganese (SiMn) fume. SiMn fume is an industrial by-product produced during the production of SiMn alloy by carbothermic reduction. SiO2, MnO2 and K2O are the major constituents of SiMn fume. The precursor material was activated by varied concentration of NaOH (4M, 8M and 12M) and constant Na2SiO3/NaOH ratio of 2.5. Alkali activated SiMn fume mortars were cured at room temperature (23 ± 2 °C) and the maximum compressive strength of 36 MPa was achieved at a concentration of 12M NaOH. Influence of dissolution of SiMn fume with a change in NaOH concentration can be observed from the results of setting time, flow and compressive strength. Flow and compressive strength increased with an increase in the concentration of NaOH. SiMn fume can be utilized as a precursor material to develop a sustainable alkali activated cementitious binder.
KeywordsSustainable binder Na2SiO3 NaOH Alkali activated mortar Room temperature curing
Authors acknowledge the support provided by Universiti Sains Malaysia, Malaysia and King Fahd University of Petroleum and Minerals, Saudi Arabia, in conducting the study.
- 2.Bernal, S., de Gutiérrez, R.M., Pedraza, A., Provis, J., Rodriguez, E., Delvasto, S.: Effect of binder content on the performance of alkali-activated slag concretes. Cem. Concr. Res. 41(1), 1-8 (2011)Google Scholar
- 4.Chi, M.C., Chi, J.H., Wu, C.H.: Effect of GGBFS on compressive strength and durability of concrete. Adv. Mater. Res. 1145, 22–26 (2018)Google Scholar
- 7.Deb, P.S., Nath, P., Sarker, P.K.: The effects of ground granulated blast-furnace slag blending with fly ash and activator content on the workability and strength properties of geopolymer concrete cured at ambient temperature. Mater. Des. 62, 32–39 (2014)Google Scholar
- 9.Rivera, O.G., Long, W.R., Weiss, C.A. Jr., Moser, R.D., Williams, B.A., Torres-Cancel, K., Gore, E.R., Allison, P.G.: Effect of elevated temperature on alkali-activated geopolymeric binders compared to portland cement—based binders. Cem. Concr. Res. 90, 43–51 (2016)Google Scholar
- 10.Kumar, S., García-Triñanes, P., Teixeira-Pinto, A., Bao, M.: Development of alkali activated cement from mechanically activated silico-manganese (SiMn) Slag. Cem. Concr. Compos. 40, 7–13 (2013)Google Scholar
- 11.Frias, M., Rodrıguez, C.: Effect of incorporating ferroalloy industry wastes as complementary cementing materials on the properties of blended cement matrices. Cem. Concr. Compos. 30(3), 212–219 (2008)Google Scholar
- 12.Haruna, S., Mohammed, B.S., Shahir-Liew, M., Alaloul, W.S., Haruna, A.: Effect of water-binder ratio and NaOH molarity on the properties of high calcium fly ash geopolymer mortars at outdoor curing. Int. J. Civ. Eng. Technol. 9(10), 1339–1352 (2018)Google Scholar
- 13.Fang, G., Ho, W.K., Tu, W., Zhang, M.: Workability and mechanical properties of alkali-activated fly ash-slag concrete cured at ambient temperature. Constr. Build. Mater. 172(30), 476–487 (2018)Google Scholar
- 14.Wang, H., Li, H., Yan, F.: Synthesis and mechanical properties of metakaolinite-based geopolymer. Colloids Surf. A 268(1–3), 1–6 (2005)Google Scholar