3D evaluation of the use of steel slag in road layers as a sustainable soil improvement method
MATERIA-RIO DE JANEIRO, cilt.31, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 31
- Basım Tarihi: 2026
- Doi Numarası: 10.1590/1517-7076-rmat-2025-0844
- Dergi Adı: MATERIA-RIO DE JANEIRO
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Directory of Open Access Journals
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- Gazi Üniversitesi Adresli: Evet
Özet
The infrastructure layers of the highways must meet expectations both technically and economically. These layers that are not constructed properly cause deformations on the road surface. Steel slag should be preferred to reduce these deformations, increase the use of recycled materials worldwide, and create a sustainable system. For this purpose, the vertical deformation response of the flexible superstructure utilizing steel slag under dynamic wheel loads was analyzed numerically using the 3D FEM approach, in this study. Axle loads were applied considering the heavy vehicle tire layout plan and subjected to cyclic loading. The effect on the vertical settlement of the road was evaluated for four different sections defined using steel slag in the base and subbase layers. The axle load was applied to the determined wheel loading areas in loading steps throughout the cycle time, which was determined depending on the speed of the heavy vehicle and the tire dimensions. According to the results of the numerical analysis, the engineering performance of the sections with steel slag was better. Thus, innovative and sustainable approaches such as using steel slag aggregates instead of natural aggregates in the base and subbase layers of the highway were proposed.