Influence of particle size on the reactivity of chemical modified steel slag powder
Source abstract
Abstract
Understanding how the particle size of steel slag powder (SS) affects modified efficiency via chemical modified approach is critical to improve the modification process and the utilization of SS as sustainable cement-based materials. By using quantitative analysis based on backscattered electron images, the quantitative mineral compositions of SS with varying particle size (0–38, 38–75, 75–150, 150 μm) at micro-scale are obtained. Results show that the active mineral content decreases from 68% to 61% with steel slag particle size increases from 0–38 to 150 μm. Such composition divergence is one of the factors resulting in a significant difference on the 72 h cumulative hydration heat and 3 d compressive strength performances of the steel slag pastes. Combine the cumulative hydration heat values with the compressive strength results, the steel slag with particle size smaller than 75 μm is advised as the optimum section for chemical modification.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Concrete and Cement Materials Research · Innovative concrete reinforcement materials · Magnesium Oxide Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Jiangsu Key Laboratory of Construction Materials, School of Materials Science and Engineering, Southeast University, Nanjing, China
State Key Laboratory of Coal Resources and Safe Mining, School of Mines, China University of Mining and Technology, Xuzhou, China
Faculty of Architecture and Civil Engineering, Huaiyin Institute of Technology, Huaian, China
Funding
National Natural Science Foundation of China
References (41)
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