Green Stabilization of Bauxite Tailings: Mechanical Study on Alkali-Activated Materials
Source abstract
Abstract
This study evaluates the alkali activation of a binary system composed of sugar cane bagasse ash and carbide lime as a green stabilization technique for bauxite tailings (BTs). To analyze the feasibility of this alternative binder as a stabilizer, mechanical tests were performed to measure the strength, stiffness, and durability of BT binder mixtures. As a control group, tailings were stabilized with high-initial-strength portland cement (Type III). The results show that the alternative binder is a suitable option to improve the mechanical behavior of bauxite tailings. The porosity/binder index (η/Biv) was an appropriate parameter for evaluating BT stabilization. Reduced porosity and increased binder content (decreased η/Biv) led to an improvement in the mechanical behavior of the studied mixtures.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Magnesium Oxide Properties and Applications · Concrete and Cement Materials Research · Bauxite Residue and Utilization
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Ph.D. Student, Graduate Program in Civil Engineering, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 90035-190, Brazil (corresponding author). ORCID: .
Ph.D. Student, Graduate Program in Civil Engineering, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 90035-190, Brazil. ORCID: .
Postdoctoral Fellow, Graduate Program in Civil Engineering, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 90035-190, Brazil.
Professor of Civil Engineering, Graduate Program in Civil Engineering, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 90035-190, Brazil. ORCID: .
References (44)
Show source-provided references
1. 10.1016/j.sandf.2019.07.00810.1016/j.sandf.2019.07.008 ↗
2. 10.1016/j.conbuildmat.2019.03.26110.1016/j.conbuildmat.2019.03.261 ↗
3. 10.5194/essd-10-195-201810.5194/essd-10-195-2018 ↗
4. 10.1016/j.resourpol.2019.10146110.1016/j.resourpol.2019.101461 ↗
5. 10.1061/(ASCE)MT.1943-5533.000161310.1061/(ASCE)MT.1943-5533.0001613 ↗
6. 10.1680/jgeen.18.0024310.1680/jgeen.18.00243 ↗
7. 10.1139/cgj-2016-039110.1139/cgj-2016-0391 ↗
8. Consoli, N. C., M. Da Silva Carretta, L. Festugato, H. B. Leon, L. F. Tomasi, and K. S. Heineck. 2020b. “Ground waste glass–carbide lime as a sustainable binder stabilising three different silica sands.” Géotechnique 71 (6): 1–14. https://doi.org/10.1680/jgeot.18.P.099.
9. 10.1061/(ASCE)MT.1943-5533.000329810.1061/(ASCE)MT.1943-5533.0003298 ↗
10. 10.1061/(ASCE)MT.1943-5533.000018610.1061/(ASCE)MT.1943-5533.0000186 ↗
11. 10.1680/jgrim.17.0003410.1680/jgrim.17.00034 ↗
12. 10.1016/j.jclepro.2020.12201710.1016/j.jclepro.2020.122017 ↗
13. 10.1016/j.conbuildmat.2018.12.18810.1016/j.conbuildmat.2018.12.188 ↗
14. 10.1016/j.jclepro.2016.07.21910.1016/j.jclepro.2016.07.219 ↗
15. 10.1007/BF0191219310.1007/BF01912193 ↗
16. 10.1016/j.mineng.2013.01.00310.1016/j.mineng.2013.01.003 ↗
17. 10.1007/s10853-006-0637-z10.1007/s10853-006-0637-z ↗
18. 10.1016/j.colsurfa.2005.06.06010.1016/j.colsurfa.2005.06.060 ↗
19. 10.1016/j.asej.2020.10.01910.1016/j.asej.2020.10.019 ↗
20. 10.1016/j.geotexmem.2017.11.00310.1016/j.geotexmem.2017.11.003 ↗
21. 10.1590/s1678-8621201800040031210.1590/s1678-86212018000400312 ↗
22. 10.1016/j.scitotenv.2020.13810010.1016/j.scitotenv.2020.138100 ↗
23. Gama, F. F., W. R. Paradella, J. C. Mura, and C. G. de Oliveira. 2019. “Advanced DINSAR analysis on dam stability monitoring: A case study in the Germano Mining Complex (Mariana, Brazil) with SBAS and PSI techniques.” Remote Sens. Appl.: Soc. Environ. 16 (Nov): 100267. https://doi.org/10.1016/j.rsase.2019.100267.
24. 10.1111/j.1751-908X.1989.tb00476.x10.1111/j.1751-908X.1989.tb00476.x ↗
25. 10.1016/j.conbuildmat.2017.04.17110.1016/j.conbuildmat.2017.04.171 ↗
26. 10.1016/j.jclepro.2019.11800810.1016/j.jclepro.2019.118008 ↗
27. Kushwaha S. S. and D. Kishan. 2016. “Stabilization of red mud by lime and gypsum and investigating its possible use in geoenvironmental engineering.” In Proc. Geo-Chicago 978–988. Reston VA: ASCE.10.1061/9780784480144.097 ↗
28. 10.1520/GTJ10364J10.1520/GTJ10364J ↗
29. 10.1061/(ASCE)MT.1943-5533.000311110.1061/(ASCE)MT.1943-5533.0003111 ↗
30. 10.1061/(ASCE)0733-9372(1998)124:3(254)10.1061/(ASCE)0733-9372(1998)124:3(254) ↗
31. 10.3390/ijerph12121498310.3390/ijerph121214983 ↗
32. 10.1016/j.conbuildmat.2018.01.18610.1016/j.conbuildmat.2018.01.186 ↗
33. 10.1016/j.powtec.2014.09.01110.1016/j.powtec.2014.09.011 ↗
34. 10.1016/j.jenvman.2019.10974810.1016/j.jenvman.2019.109748 ↗
35. 10.1016/j.conbuildmat.2007.01.02210.1016/j.conbuildmat.2007.01.022 ↗
36. PCA (Portland Cement Association). 1992. Soil-cement laboratory handbook. Chicago: PCA.
37. 10.1016/j.conbuildmat.2020.12028510.1016/j.conbuildmat.2020.120285 ↗
38. 10.1061/(ASCE)MT.1943-5533.000228310.1061/(ASCE)MT.1943-5533.0002283 ↗
39. 10.1016/j.enggeo.2012.10.01310.1016/j.enggeo.2012.10.013 ↗
40. Schnaid, F., H. P. Nierwinski, J. Bedin, and E. Odebrecht. 2014. “On the characterization and classification of bauxite tailings.” Soil Rocks 37 (2): 277–284.10.28927/SR.373277 ↗
41. 10.1016/S0015-1882(14)70225-310.1016/S0015-1882(14)70225-3 ↗
42. van Jaarsveld J. G. S. G. C. Lukey J. S. J. Van Deventer and A. Graham. 2000. “The stabilisation of mine tailings by reactive geopolymerisation.” In Proc. Int. Congress on Mineral Processing and Extractive Metallurgy MINPREX 2000 363–372. Carlton Australia: Australasian Institute of Mining and Metallurgy.
43. 10.1016/j.trgeo.2020.10041210.1016/j.trgeo.2020.100412 ↗
44. 10.1016/j.conbuildmat.2011.04.00510.1016/j.conbuildmat.2011.04.005 ↗