Possibility of carbon steel eafd solidification/stabilization in concrete
Само за регистроване кориснике
2013
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Steel scrap recycling is generally performed by direct smelting of scrap in an electric arc furnace, generating about 2% of dust per charge. Electric arc furnace dust (EAFD) is characterized as a hazardous material, due to its heavy metals content and a powder form. A present study indicates the possibility of domestic carbon steel EAFD stabilization by using cement as the main stabilizer; fly ash as an additive, and controlling the EAFD particle size by milling. EAFD replaced 0-50 % of fine aggregate and fly ash replaced 10-25% of cement in mixtures, with different milling times applied. S/S samples were tested for compressive strength and heavy metals leachability. The results of compressive strength testing showed that the maximum EAFD replacement is 15%, after which compressive strength decreases rapidly. The best fly ash compressive strength was attained at 10% replacement of both fine aggregate and cement. The milled EAFD produced the best results at three hours of milling, howev...er, the addition of fly ash resulted in a slight compressive strength decrease in these samples. The TCLP analysis of concrete samples indicated that Zn and Pb were stabilized in the cement matrix even at 30% of fine aggregate replacement with EAFD. From the physical-mechanical and environmental aspects, EAFD can be used as a component in cement Mixtures in instances when the Zn and Pb content is not sufficiently high for justifiable valorization of these metals.
Кључне речи:
solidification/stabilization / EAFD / concrete / fly ash / TCLP / compressive strengthИзвор:
Metalurgia International, 2013, 18, SPEC.4, 182-188Издавач:
- Editura Stiintifica Fmr, Bucharest
Финансирање / пројекти:
- Иновативна синергија нус-продуката, минимизације отпада и чистије производње у металургији (RS-34033)
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Issa, Hatim AU - Korać, Marija AU - Gavrilovski, Milorad AU - Kamberović, Željko PY - 2013 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2266 AB - Steel scrap recycling is generally performed by direct smelting of scrap in an electric arc furnace, generating about 2% of dust per charge. Electric arc furnace dust (EAFD) is characterized as a hazardous material, due to its heavy metals content and a powder form. A present study indicates the possibility of domestic carbon steel EAFD stabilization by using cement as the main stabilizer; fly ash as an additive, and controlling the EAFD particle size by milling. EAFD replaced 0-50 % of fine aggregate and fly ash replaced 10-25% of cement in mixtures, with different milling times applied. S/S samples were tested for compressive strength and heavy metals leachability. The results of compressive strength testing showed that the maximum EAFD replacement is 15%, after which compressive strength decreases rapidly. The best fly ash compressive strength was attained at 10% replacement of both fine aggregate and cement. The milled EAFD produced the best results at three hours of milling, however, the addition of fly ash resulted in a slight compressive strength decrease in these samples. The TCLP analysis of concrete samples indicated that Zn and Pb were stabilized in the cement matrix even at 30% of fine aggregate replacement with EAFD. From the physical-mechanical and environmental aspects, EAFD can be used as a component in cement Mixtures in instances when the Zn and Pb content is not sufficiently high for justifiable valorization of these metals. PB - Editura Stiintifica Fmr, Bucharest T2 - Metalurgia International T1 - Possibility of carbon steel eafd solidification/stabilization in concrete EP - 188 IS - SPEC.4 SP - 182 VL - 18 UR - https://hdl.handle.net/21.15107/rcub_technorep_2266 ER -
@article{ author = "Issa, Hatim and Korać, Marija and Gavrilovski, Milorad and Kamberović, Željko", year = "2013", abstract = "Steel scrap recycling is generally performed by direct smelting of scrap in an electric arc furnace, generating about 2% of dust per charge. Electric arc furnace dust (EAFD) is characterized as a hazardous material, due to its heavy metals content and a powder form. A present study indicates the possibility of domestic carbon steel EAFD stabilization by using cement as the main stabilizer; fly ash as an additive, and controlling the EAFD particle size by milling. EAFD replaced 0-50 % of fine aggregate and fly ash replaced 10-25% of cement in mixtures, with different milling times applied. S/S samples were tested for compressive strength and heavy metals leachability. The results of compressive strength testing showed that the maximum EAFD replacement is 15%, after which compressive strength decreases rapidly. The best fly ash compressive strength was attained at 10% replacement of both fine aggregate and cement. The milled EAFD produced the best results at three hours of milling, however, the addition of fly ash resulted in a slight compressive strength decrease in these samples. The TCLP analysis of concrete samples indicated that Zn and Pb were stabilized in the cement matrix even at 30% of fine aggregate replacement with EAFD. From the physical-mechanical and environmental aspects, EAFD can be used as a component in cement Mixtures in instances when the Zn and Pb content is not sufficiently high for justifiable valorization of these metals.", publisher = "Editura Stiintifica Fmr, Bucharest", journal = "Metalurgia International", title = "Possibility of carbon steel eafd solidification/stabilization in concrete", pages = "188-182", number = "SPEC.4", volume = "18", url = "https://hdl.handle.net/21.15107/rcub_technorep_2266" }
Issa, H., Korać, M., Gavrilovski, M.,& Kamberović, Ž.. (2013). Possibility of carbon steel eafd solidification/stabilization in concrete. in Metalurgia International Editura Stiintifica Fmr, Bucharest., 18(SPEC.4), 182-188. https://hdl.handle.net/21.15107/rcub_technorep_2266
Issa H, Korać M, Gavrilovski M, Kamberović Ž. Possibility of carbon steel eafd solidification/stabilization in concrete. in Metalurgia International. 2013;18(SPEC.4):182-188. https://hdl.handle.net/21.15107/rcub_technorep_2266 .
Issa, Hatim, Korać, Marija, Gavrilovski, Milorad, Kamberović, Željko, "Possibility of carbon steel eafd solidification/stabilization in concrete" in Metalurgia International, 18, no. SPEC.4 (2013):182-188, https://hdl.handle.net/21.15107/rcub_technorep_2266 .