Asphalt pavement containing iron-nickel slag: a viable solution

Authors

  • Lisley Madeira Coelho Instituto Militar de Engenharia
  • Claudeny Simone Alves Santana Instituto Militar de Engenharia
  • Antônio Carlos Rodrigues Guimarães Instituto Militar de Engenharia
  • Carmen Dias Castro Instituto Militar de Engenharia

DOI:

https://doi.org/10.6008/CBPC2179-6858.2021.005.0036

Keywords:

Slag, Ferronickel, Concrete asphalt

Abstract

Analyzing the properties of FeNi slag (ferronickel) from the reduction process and its feasibility of use in pavement engineering, as an alternative aggregate (fine), the behavior of an asphalt mixture was studied, using conventional CAP 50 / 70 binder, natural aggregates and FeNi slag. In addition to laboratory analysis, this study included the evaluation and monitoring of an experimental stretch, located in Niquelândia-GO. The samples were dosed by the Marshall methodology and evaluated for strength and deformability properties. The distribution of FeNi slag particles were classified as medium and coarse sand and inert chemical composition (ABNT - NBR 10004/2004). The mixture containing FeNi presented high values of tensile strength, resilient modulus and stability, being able to consider the material a promising alternative for use in low-cost paving, since it led to results consistent with what the DNIT specifications recommend for use in pavements.

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Published

2021-03-28

Issue

Section

Engenharia da Sustentabilidade e Meio Ambiente

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