Comprehensive analysis of the environmental impact of electric arc furnace steel slag on asphalt mixtures

Lizasoain Arteaga Esther; Lastra González Pedro; Indacoechea Vega Irune; Flintsch Gerardo

doi:10.1016/j.jclepro.2020.123121

Comprehensive analysis of the environmental impact of electric arc furnace steel slag on asphalt mixtures

Lizasoain Arteaga Esther^*
, Lastra González Pedro
, Indacoechea Vega Irune
, Flintsch Gerardo

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

70 Citations (Scopus)

Abstract

This paper analyses the environmental impact of replacing high-quality coarse aggregates by electric arc furnace (EAF) steel slag. A Life Cycle Assessment (LCA) was performed on three asphalt mixtures containing different aggregates: namely ophite, slag 1 and slag 2. The inventory gaps were filled by performing several laboratory tests and applying theoretical models. Furthermore, the sensitivity of the results when applying several allocation procedures, aggregate moisture content and ophite transport distances was also analysed. The results showed the great importance of both the aggregate absorption rate and, above all, the humidity. Slags can replace ophite located more than 144 km from the asphalt plant.

Original language	English
Article number	123121
Journal	Journal of Cleaner Production
Volume	275
DOIs	https://doi.org/10.1016/j.jclepro.2020.123121
Publication status	Published - 1 Dec 2020
Externally published	Yes

Keywords

Asphalt mixture
Electric arc furnace
Environmental impact
LCA
Life cycle assessment
Slag

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.jclepro.2020.123121

Cite this

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title = "Comprehensive analysis of the environmental impact of electric arc furnace steel slag on asphalt mixtures",

abstract = "This paper analyses the environmental impact of replacing high-quality coarse aggregates by electric arc furnace (EAF) steel slag. A Life Cycle Assessment (LCA) was performed on three asphalt mixtures containing different aggregates: namely ophite, slag 1 and slag 2. The inventory gaps were filled by performing several laboratory tests and applying theoretical models. Furthermore, the sensitivity of the results when applying several allocation procedures, aggregate moisture content and ophite transport distances was also analysed. The results showed the great importance of both the aggregate absorption rate and, above all, the humidity. Slags can replace ophite located more than 144 km from the asphalt plant.",

keywords = "Asphalt mixture, Electric arc furnace, Environmental impact, LCA, Life cycle assessment, Slag",

author = "Esther, \{Lizasoain Arteaga\} and Pedro, \{Lastra Gonz{\'a}lez\} and Irune, \{Indacoechea Vega\} and Flintsch Gerardo",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

year = "2020",

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day = "1",

doi = "10.1016/j.jclepro.2020.123121",

language = "English",

volume = "275",

journal = "Journal of Cleaner Production",

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T1 - Comprehensive analysis of the environmental impact of electric arc furnace steel slag on asphalt mixtures

AU - Esther, Lizasoain Arteaga

AU - Pedro, Lastra González

AU - Irune, Indacoechea Vega

AU - Gerardo, Flintsch

PY - 2020/12/1

Y1 - 2020/12/1

N2 - This paper analyses the environmental impact of replacing high-quality coarse aggregates by electric arc furnace (EAF) steel slag. A Life Cycle Assessment (LCA) was performed on three asphalt mixtures containing different aggregates: namely ophite, slag 1 and slag 2. The inventory gaps were filled by performing several laboratory tests and applying theoretical models. Furthermore, the sensitivity of the results when applying several allocation procedures, aggregate moisture content and ophite transport distances was also analysed. The results showed the great importance of both the aggregate absorption rate and, above all, the humidity. Slags can replace ophite located more than 144 km from the asphalt plant.

AB - This paper analyses the environmental impact of replacing high-quality coarse aggregates by electric arc furnace (EAF) steel slag. A Life Cycle Assessment (LCA) was performed on three asphalt mixtures containing different aggregates: namely ophite, slag 1 and slag 2. The inventory gaps were filled by performing several laboratory tests and applying theoretical models. Furthermore, the sensitivity of the results when applying several allocation procedures, aggregate moisture content and ophite transport distances was also analysed. The results showed the great importance of both the aggregate absorption rate and, above all, the humidity. Slags can replace ophite located more than 144 km from the asphalt plant.

KW - Asphalt mixture

KW - Electric arc furnace

KW - Environmental impact

KW - LCA

KW - Life cycle assessment

KW - Slag

UR - https://www.scopus.com/pages/publications/85088642075

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DO - 10.1016/j.jclepro.2020.123121

M3 - Article

AN - SCOPUS:85088642075

SN - 0959-6526

VL - 275

JO - Journal of Cleaner Production

JF - Journal of Cleaner Production

M1 - 123121

ER -

Comprehensive analysis of the environmental impact of electric arc furnace steel slag on asphalt mixtures

Abstract

Keywords

UN SDGs

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