Life Cycle Analysis Comparison of Stabilizing Materials for Expansive Soils

Autor: Zied Benghazi, Rima Tobal, Adel Djellali
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: ARCHive-SR, Vol 8, Iss 2 (2024)
Druh dokumentu: article
ISSN: 2537-0154
2537-0162
DOI: 10.21625/archive-sr.v8i2.1086
Popis: Expansive soils present significant challenges to infrastructure stability, necessitating the use of stabilizing materials. This study conducts a comprehensive life cycle analysis (LCA) research design to evaluate the environmental sustainability of various stabilizing materials for expansive soil. The study uses a quantitative analysis assessing materials, including cement, limestone, natural pozzolana, iron ore tailings, and geopolymers (especially alkali-activated slag cement). The method involves a comprehensive LCA, considering phases from raw material extraction through production, use, and disposal. The analysis reveals distinct differences in environmental impact. Cement and lime, common stabilizers, show a high carbon footprint. Natural pozzolana and iron ore tailings exhibit potential as supplementary cementitious materials with reduced environmental impact. Geopolymers, particularly alkali-activated slag cement, offer promising alternatives with lower carbon emissions. This research contributes insights into sustainable geotechnical practices, guiding material selection aligned with environmental goals for effective expansive soil stabilization.
Databáze: Directory of Open Access Journals
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