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One way to reduce the negative environmental impact of the extraction of natural aggregates is to use industrial waste as construction materials. An example of this is the black slag from the electric arc furnace (ENHAE for its acronym in Spanish; BSEAF for its initials in English), which is obtained during the fusion, with electric current, of ferrous scrap together with other raw materials. In Cuba there are two industries that produce steel through the electric arc furnace. They are the stainless steel company ACINOX from the province of Las Tunas and in Havana the steel company “José Martí”. In the latter, high quantities of BSEAF are found in their yards, without giving use value to this material with proven applications in the construction branch. From there came the decision of this research, where the influence that BSEAF has, replacing conventional coarse aggregates, on the properties of Portland cement concrete was characterized. For this, four concretes with different percentages of BSEAF substitution (25, 50, 75 and 100%) were designed to compare them with a standard concrete (0%). As a result, the properties of these concretes were similar and even superior to the standard concrete, which demonstrated the viability and feasibility of their use.

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Black Electric Arc Furnace Slag as Thick Aggregates in Concrete

  • 章节

  • 发表日期：

    2026年

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  • Iatny de la Roz Martínez,
  • René Puig Martínez,
  • Joaquín de la Torre Ramírez

摘要

One way to reduce the negative environmental impact of the extraction of natural aggregates is to use industrial waste as construction materials. An example of this is the black slag from the electric arc furnace (ENHAE for its acronym in Spanish; BSEAF for its initials in English), which is obtained during the fusion, with electric current, of ferrous scrap together with other raw materials. In Cuba there are two industries that produce steel through the electric arc furnace. They are the stainless steel company ACINOX from the province of Las Tunas and in Havana the steel company “José Martí”. In the latter, high quantities of BSEAF are found in their yards, without giving use value to this material with proven applications in the construction branch. From there came the decision of this research, where the influence that BSEAF has, replacing conventional coarse aggregates, on the properties of Portland cement concrete was characterized. For this, four concretes with different percentages of BSEAF substitution (25, 50, 75 and 100%) were designed to compare them with a standard concrete (0%). As a result, the properties of these concretes were similar and even superior to the standard concrete, which demonstrated the viability and feasibility of their use.