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Asphalt modified with superfine electric arc furnace steel dust (EAF dust) with high zinc oxide content
HighlightsIn this research a particular EAF dust with high ZnO is evaluated as an admixture for asphalt up to 50wt%.In addition to a very complete characterization, an analysis of an asphalt mechanism modified by chemical means was carried out.The particle distance was calculated using the composite materials theory, and other variables were analyzed in terms of these estimations.
AbstractElectric arc furnace (EAF) dust is a complex ceramic-type hazardous waste generated by the metallurgical industry and produced worldwide in millions of tons. In this research EAF dust is evaluated as an admixture for asphalt up to 50wt%. The microstructure was analyzed by optical and scanning electron microscopy. Fourier transform infrared spectra, penetration, softening point and viscosity tests were conducted for all compositions. The results show the penetration point increases until 10wt% of waste and it then decreases. Conversely, the softening point, penetration index (PI) and viscosity, decrease after 5wt% and reaches a minimum at 10wt%. The particle distance was calculated using the composite materials theory, and other variables were analyzed in terms of inter-particle distance estimations.
Asphalt modified with superfine electric arc furnace steel dust (EAF dust) with high zinc oxide content
HighlightsIn this research a particular EAF dust with high ZnO is evaluated as an admixture for asphalt up to 50wt%.In addition to a very complete characterization, an analysis of an asphalt mechanism modified by chemical means was carried out.The particle distance was calculated using the composite materials theory, and other variables were analyzed in terms of these estimations.
AbstractElectric arc furnace (EAF) dust is a complex ceramic-type hazardous waste generated by the metallurgical industry and produced worldwide in millions of tons. In this research EAF dust is evaluated as an admixture for asphalt up to 50wt%. The microstructure was analyzed by optical and scanning electron microscopy. Fourier transform infrared spectra, penetration, softening point and viscosity tests were conducted for all compositions. The results show the penetration point increases until 10wt% of waste and it then decreases. Conversely, the softening point, penetration index (PI) and viscosity, decrease after 5wt% and reaches a minimum at 10wt%. The particle distance was calculated using the composite materials theory, and other variables were analyzed in terms of inter-particle distance estimations.
Asphalt modified with superfine electric arc furnace steel dust (EAF dust) with high zinc oxide content
Loaiza, Alexandra (author) / Cifuentes, Sergio (author) / Colorado, Henry A. (author)
Construction and Building Materials ; 145 ; 538-547
2017-04-05
10 pages
Article (Journal)
Electronic Resource
English
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