ArticleMaterials (Basel, Switzerland)2022
Study on the Performance of Steel Slag and Its Asphalt Mixture with Oxalic Acid and Water Erosion.
Article in Materials (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 27 citations in OpenAlex.
- Strength Prediction of Cement-Stabilized Steel Slag Using Deep Learning and SHAP Analysis.Materials (Basel, Switzerland) · 2026Article
- Study on the Fatigue and Healing Characteristics of Steel Slag Asphalt Concrete.Materials (Basel, Switzerland) · 2025Article
- The Utilization of Carbonated Steel Slag as a Supplementary Cementitious Material in Cement.Materials (Basel, Switzerland) · 2024Review
- Sustainable Recycling Techniques of Pavement Materials.Materials (Basel, Switzerland) · 2022Article
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Authors and funding
4 authors at 1 institution in 1 country.
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Abstract
The reuse of steel slag, a large-scale solid waste from steel production, has good social and environmental benefits. The application of a steel slag asphalt mixture is mainly hindered by its volume expansion in water. The expansion of steel slag can be inhibited by oxalic acid. The expansion rate and adhesion of steel slag were investigated, and the immersion stability of steel slag and its asphalt mixture was evaluated by water erosion. By means of XRD, XRF, TG, SEM, etc., the influence mechanism of oxalic acid and water erosion on the properties of steel slag and its asphalt mixture was discussed. The results show that oxalic acid can not only inhibit the expansion of steel slag but also improve its crush resistance, with a reduction in the expansion rate of steel slag by 53%. Oxalic acid is able to leach alkaline metal elements, reducing its adhesion with asphalt. After 10 days of water erosion, the rutting stability and bending crack resistance of the treated steel slag mixture decreased by 37% and 43.2%, respectively. Calcium oxalate is generated on the surface of treated steel slag, which improves the surface compactness, effectively inhibits the expansion of steel slag caused by water erosion, and improves the performance of steel slag and its asphalt mixture. Water erosion can accelerate the hydration and shedding of calcium-containing substances on the surface of steel slag, reduce the adhesion of steel slag, and lead to degradation in the performance of steel slag and its asphalt mixture. Oxalic acid is able to effectively inhibit the expansion of steel slag, and the treated steel slag can be used as recycled aggregate in asphalt mixture, effectively solving the problems of road aggregate deficiency and environmental pollution caused by steel slag.
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