TY  - CONF
AU  - Mirković, Nikola
AU  - Mitković, Predrag
AU  - Ninić, Bojana
AU  - Milovanović, Jovana
AU  - Mirković, Milica
AU  - Petojević, Zorana
AU  - Šumarac, Dragoslav
AU  - Gospavić, Radovan
AU  - Todorović, Goran
PY  - 2017
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1519
AB  - In this paper, the results of numerical simulation of 2D non-stationary temperature fields in commonly used composite structural members made of steel and concrete in fire conditions were presented. Simulation is based on the model which includes temperature dependence of physical parameters of materials, specific heat and thermal conductivity. Analysis of composite structural members comprises determination of a heat flux field which additionally facilitates understanding of region and geometry ofheat flow, thus enhancing fire protection design. Initial temperature distribution is adopted as uniform, according to Eurocode. Fire conditions were according to ISO 834.The FEM computations for different protection scenario and protective materials for partially encased I section - are conducted in ABAQUS. Obtained results can be used in cost optimization of fire protection measures.
PB  - Građevinski fakultet, Subotica
C3  - Zbornik radova 5. Međunarodne konferencije Savremena dostignuća u građevinarstvu 2017
T1  - Composite structural members in fire conditions and measures of protection
T1  - Spregnuti elementi u uslovima požara i mere zaštite
EP  - 139
SP  - 131
VL  - 33
DO  - 10.14415/konferencijaGFS2017.013
ER  - 

@conference{
author = "Mirković, Nikola and Mitković, Predrag and Ninić, Bojana and Milovanović, Jovana and Mirković, Milica and Petojević, Zorana and Šumarac, Dragoslav and Gospavić, Radovan and Todorović, Goran",
year = "2017",
abstract = "In this paper, the results of numerical simulation of 2D non-stationary temperature fields in commonly used composite structural members made of steel and concrete in fire conditions were presented. Simulation is based on the model which includes temperature dependence of physical parameters of materials, specific heat and thermal conductivity. Analysis of composite structural members comprises determination of a heat flux field which additionally facilitates understanding of region and geometry ofheat flow, thus enhancing fire protection design. Initial temperature distribution is adopted as uniform, according to Eurocode. Fire conditions were according to ISO 834.The FEM computations for different protection scenario and protective materials for partially encased I section - are conducted in ABAQUS. Obtained results can be used in cost optimization of fire protection measures.",
publisher = "Građevinski fakultet, Subotica",
journal = "Zbornik radova 5. Međunarodne konferencije Savremena dostignuća u građevinarstvu 2017",
title = "Composite structural members in fire conditions and measures of protection, Spregnuti elementi u uslovima požara i mere zaštite",
pages = "139-131",
volume = "33",
doi = "10.14415/konferencijaGFS2017.013"
}

Mirković, N., Mitković, P., Ninić, B., Milovanović, J., Mirković, M., Petojević, Z., Šumarac, D., Gospavić, R.,& Todorović, G.. (2017). Composite structural members in fire conditions and measures of protection. in Zbornik radova 5. Međunarodne konferencije Savremena dostignuća u građevinarstvu 2017
Građevinski fakultet, Subotica., 33, 131-139.
https://doi.org/10.14415/konferencijaGFS2017.013

Mirković N, Mitković P, Ninić B, Milovanović J, Mirković M, Petojević Z, Šumarac D, Gospavić R, Todorović G. Composite structural members in fire conditions and measures of protection. in Zbornik radova 5. Međunarodne konferencije Savremena dostignuća u građevinarstvu 2017. 2017;33:131-139.
doi:10.14415/konferencijaGFS2017.013 .

Mirković, Nikola, Mitković, Predrag, Ninić, Bojana, Milovanović, Jovana, Mirković, Milica, Petojević, Zorana, Šumarac, Dragoslav, Gospavić, Radovan, Todorović, Goran, "Composite structural members in fire conditions and measures of protection" in Zbornik radova 5. Međunarodne konferencije Savremena dostignuća u građevinarstvu 2017, 33 (2017):131-139,
https://doi.org/10.14415/konferencijaGFS2017.013 . .

TY  - JOUR
AU  - Lekić, Branislava
AU  - Ljubisavljević, Dejan
AU  - Rajaković, Ljubinka V.
PY  - 2011
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/392
AB  - This paper deals with arsenic removal from water by adsorption with unconventional materials: natural materials (zeolite, bentonite, sepiolite, limonite, pyrolusite), waste materials (waste iron slag, waste sand filter) and modified materials (neutralized waste iron slag, iron(III)-hydroxide coated sand and activated carbon). Under the same conditions are investigated commercial sorbents to compare results. Arsenic removal by adsorption with unconventional materials is investigated in the batch reactor. The best results in batch reactor are obtained with waste materials. Waste iron slag and waste filter sand exhibited equilibrium sorption capacities of 50 μg/g and 30 μg/g, respectively, which is nearly equal to values obtained for the commercial sorbents. Due to the high content of CaO waste iron slag increases significantly water pH (pH=11). In order to minimize its deteriorating impact on the initial water quality, the waste iron slag was neutralized. The new, modified waste iron slag exhibited the highest sorption capacity, 55.
AB  - U ovom radu su prikazani rezultati istraživanja efikasnosti uklanjanja arsena iz vode sorpcijom na nekonvencionalnim materijalima: prirodnim (zeolit, bentonit, sepiolit, limonit, piroluzit), otpadnim (otpadna šljaka, otpadni filtarski pesak) i modifikovanim (modifikovana otpadna šljaka, kvarcni pesak i aktivni ugalj impregnisani gvožđe(III)-hidroksidom). Pod istim uslovima paralelno su ispitivani komercijalni sorbenti radi poređenja rezultata. Uklanjanje arsena iz vode sorpcijom je ispitivana u šaržnom sistemu Najbolji rezultati u šaržnom sistemu dobijeni su sa otpadnim materijalima: za otpadnu šljaku i 30 μg/g za otpadni filtarski pesak (za Co=0,5 mg/L), što je u nivou vrednosti koje su dobijene za komercijalne sorbente za uklanjanje arsena. Zbog visokog sadržaja CaO, otpadna šljaka značajno povećava pH vrednost vode (pH= 11). Neutralizacijom otpadne šljake dobijen je nov materijal, modifikovana otpadna šljaka, većeg sorpcionog kapaciteta: 55.
PB  - Jugoslovensko društvo za odvodnjavanje i navodnjavanje, Beograd
T2  - Vodoprivreda
T1  - Low cost arsenic removal from aqueous solution by adsorption
T1  - Uklanjanje arsena iz vode adsorpcijom na nekonvencionalnim materijalima
EP  - 150
IS  - 4-6
SP  - 127
VL  - 43
UR  - https://hdl.handle.net/21.15107/rcub_grafar_392
ER  - 

@article{
author = "Lekić, Branislava and Ljubisavljević, Dejan and Rajaković, Ljubinka V.",
year = "2011",
abstract = "This paper deals with arsenic removal from water by adsorption with unconventional materials: natural materials (zeolite, bentonite, sepiolite, limonite, pyrolusite), waste materials (waste iron slag, waste sand filter) and modified materials (neutralized waste iron slag, iron(III)-hydroxide coated sand and activated carbon). Under the same conditions are investigated commercial sorbents to compare results. Arsenic removal by adsorption with unconventional materials is investigated in the batch reactor. The best results in batch reactor are obtained with waste materials. Waste iron slag and waste filter sand exhibited equilibrium sorption capacities of 50 μg/g and 30 μg/g, respectively, which is nearly equal to values obtained for the commercial sorbents. Due to the high content of CaO waste iron slag increases significantly water pH (pH=11). In order to minimize its deteriorating impact on the initial water quality, the waste iron slag was neutralized. The new, modified waste iron slag exhibited the highest sorption capacity, 55., U ovom radu su prikazani rezultati istraživanja efikasnosti uklanjanja arsena iz vode sorpcijom na nekonvencionalnim materijalima: prirodnim (zeolit, bentonit, sepiolit, limonit, piroluzit), otpadnim (otpadna šljaka, otpadni filtarski pesak) i modifikovanim (modifikovana otpadna šljaka, kvarcni pesak i aktivni ugalj impregnisani gvožđe(III)-hidroksidom). Pod istim uslovima paralelno su ispitivani komercijalni sorbenti radi poređenja rezultata. Uklanjanje arsena iz vode sorpcijom je ispitivana u šaržnom sistemu Najbolji rezultati u šaržnom sistemu dobijeni su sa otpadnim materijalima: za otpadnu šljaku i 30 μg/g za otpadni filtarski pesak (za Co=0,5 mg/L), što je u nivou vrednosti koje su dobijene za komercijalne sorbente za uklanjanje arsena. Zbog visokog sadržaja CaO, otpadna šljaka značajno povećava pH vrednost vode (pH= 11). Neutralizacijom otpadne šljake dobijen je nov materijal, modifikovana otpadna šljaka, većeg sorpcionog kapaciteta: 55.",
publisher = "Jugoslovensko društvo za odvodnjavanje i navodnjavanje, Beograd",
journal = "Vodoprivreda",
title = "Low cost arsenic removal from aqueous solution by adsorption, Uklanjanje arsena iz vode adsorpcijom na nekonvencionalnim materijalima",
pages = "150-127",
number = "4-6",
volume = "43",
url = "https://hdl.handle.net/21.15107/rcub_grafar_392"
}

Lekić, B., Ljubisavljević, D.,& Rajaković, L. V.. (2011). Low cost arsenic removal from aqueous solution by adsorption. in Vodoprivreda
Jugoslovensko društvo za odvodnjavanje i navodnjavanje, Beograd., 43(4-6), 127-150.
https://hdl.handle.net/21.15107/rcub_grafar_392

Lekić B, Ljubisavljević D, Rajaković LV. Low cost arsenic removal from aqueous solution by adsorption. in Vodoprivreda. 2011;43(4-6):127-150.
https://hdl.handle.net/21.15107/rcub_grafar_392 .

Lekić, Branislava, Ljubisavljević, Dejan, Rajaković, Ljubinka V., "Low cost arsenic removal from aqueous solution by adsorption" in Vodoprivreda, 43, no. 4-6 (2011):127-150,
https://hdl.handle.net/21.15107/rcub_grafar_392 .