ArticleMaterials (Basel, Switzerland)2022
Carbonation Curing on Magnetically Separated Steel Slag for the Preparation of Artificial Reefs.
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 5 papers.
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Who cites it
5 citing papers in PubMed.
- Research Progress and the Prospect of Artificial Reef Preparation and Its Impact on the Marine Ecological Environment.Materials (Basel, Switzerland) · 2026Review
- Molecular Dynamics Investigation of CaACS omega · 2025Article
- A Review on the Carbonation of Steel Slag: Properties, Mechanism, and Application.Materials (Basel, Switzerland) · 2024Review
- Preparation and Performance of Ceramic Tiles with Steel Slag and Waste Clay Bricks.Materials (Basel, Switzerland) · 2024Article
- Study on the Performance of Steel Slag and Its Asphalt Mixture with Oxalic Acid and Water Erosion.Materials (Basel, Switzerland) · 2022Article
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11 authors.
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Abstract
Magnetic separation is an effective method to recover iron from steel slag. However, the ultra-fine tailings generated from steel slag become a new issue for utilization. The dry separation processes generates steel slag powder, which has hydration activity and can be used as cement filler. However, wet separation processes produce steel slag mud, which has lost its hydration activity and is no longer suitable to be used as a cement filler. This study investigates the potential of magnetically separated steel slag for carbonation curing and the potential use of the carbonated products as an artificial reef. Steel slag powder and steel slag mud were moulded, carbonation-cured and seawater-cured. Various testing methods were used to characterize the macro and micro properties of the materials. The results obtained show that carbonation and hydration collaborated during the carbonation curing process of steel slag powder, while only carbonation happened during the carbonation curing process of steel slag mud. The seawater-curing process of carbonated steel slag powder compact had three stages: C-S-H gel formation, C-S-H gel decomposition and equilibrium, which were in correspondence to the compressive strength of compact increasing, decreasing and unchanged. However, the seawater-curing process of carbonated steel slag mud compact suffered three stages: C-S-H gel decomposition, calcite transfer to vaterite and equilibrium, which made the compressive strength of compact decreased, increased and unchanged. Carbonated steel slags tailings after magnetic separation underwent their lowest compressive strength when seawater-cured for 7 days. The amount of CaO in the carbonation active minerals in the steel slag determined the carbonation consolidation ability of steel slag and durability of the carbonated steel slag compacts. This paper provides a reference for preparation of artificial reefs and marine coagulation materials by the carbonation curing of steel slag.
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