Asphalt modified with superfine electric arc furnace steel dust (EAF dust) with high zinc oxide content

被引：40

作者：

Loaiza, Alexandra ^{[1
]}

Cifuentes, Sergio ^{[2
]}

Colorado, Henry A. ^{[1
]}

机构：

[1] Univ Antioquia UdeA, CCComposites Lab, Calle 70 52-21, Medellin, Colombia

[2] Conasfaltos SA, Medellin, Colombia

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2017年 / 145卷

关键词：

Asphalt; Electric arc furnace dust; Waste; EPOXY NANOCOMPOSITES; MIXTURE;

D O I：

10.1016/j.conbuildmat.2017.04.050

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Electric 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 50 wt%. 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 10 wt% of waste and it then decreases. Conversely, the softening point, penetration index (PI) and viscosity, decrease after 5 wt% and reaches a minimum at 10 wt%. The particle distance was calculated using the composite materials theory, and other variables were analyzed in terms of inter-particle distance estimations. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：538 / 547

页数：10

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