Issue |
E3S Web Conf.
Volume 579, 2024
2024 11th International Conference on Civil and Urban Engineering (ICCUE 2024)
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Article Number | 02001 | |
Number of page(s) | 5 | |
Section | Preparation, Implementation and Performance of Innovative Building Materials | |
DOI | https://doi.org/10.1051/e3sconf/202457902001 | |
Published online | 18 October 2024 |
Enhancing the Performance and Sustainability of Cementitious Composites through the Optimized Use of Steel Slag: Particle Size and Activation Techniques
1 Assistant Professor, Department of Civil Engineering, University Tunku Abdul Rahman, Sungai Long Campus, Jalan Sungai Long, Bandar Sungai Long Cheras 43000, Kajang, Selangor, Malaysia
2 Associate Professor, Department of Civil Engineering, University Tunku Abdul Rahman, Sungai Long Campus, Jalan Sungai Long, Bandar Sungai Long Cheras 43000, Kajang, Selangor, Malaysia
3 Head of Department, Assistant Professor, Department of Civil Engineering, University Tunku Abdul Rahman, Sungai Long Campus, Jalan Sungai Long, Bandar Sungai Long Cheras 43000, Kajang, Selangor, Malaysia
4 Department of Civil Engineering, University Tunku Abdul Rahman, Sungai Long Campus, Jalan Sungai Long, Bandar Sungai Long Cheras 43000, Kajang, Selangor, Malaysia
* Corresponding author: jasontingjingcheng@gmail.com
The utilization of industrial by-products such as steel slag in cementitious materials not only mitigates environmental impact but also enhances material properties. This study investigates the dual influence of steel slag particle size on the compressive strength and carbonation efficiency of cementitious composites. Through a systematic experimental approach, steel slag particles were incorporated into cement at varying sizes, and the resulting composites were subjected to mechanical and carbonation tests. Scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX) are conducted in this paper. The findings reveal a positive correlation between increased particle size and compressive strength, attributed to the improved interfacial transition zone and packing density. Conversely, smaller particle sizes exhibited enhanced carbonation efficiency, likely due to the increased surface area facilitating the carbonation reaction. The presence of higher silica and calcium content in finer particles was confirmed by EDX, which contributed to the accelerated carbonation process. This study underscores the importance of particle size optimization in designing sustainable cementitious materials with balanced mechanical performance and carbon sequestration potential. The insights gained from the advanced analytical techniques offer a comprehensive understanding of the mechanisms at play, paving the way for the strategic use of steel slag in eco-friendly construction practices.
Key words: Particle size / Compressive strength / Carbonation efficiency / Steel slag
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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