| Issue |
MATEC Web Conf.
Volume 403, 2024
SUBLime Conference 2024 – Towards the Next Generation of Sustainable Masonry Systems: Mortars, Renders, Plasters and Other Challenges
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|
|---|---|---|
| Article Number | 06002 | |
| Number of page(s) | 8 | |
| Section | Sustainability and Circularity | |
| DOI | https://doi.org/10.1051/matecconf/202440306002 | |
| Published online | 16 September 2024 | |
Life-cycle analysis of cement mortars with ladle furnace steel slag
1 Technical University of Kosice, Faculty of Civil Engineering, Vysokoskolska 4, 04200 Kosice, Slovak Republic
2 VSB – Technical University of Ostrava, Faculty of Mining and Geology, Ostrava, Czech Republic
3 The Technical and Test Institute for Construction Prague, Ostrava, Czech Republic
The utilization of ladle slag holds potential for innovative advancements in concrete technology, contributing to the progression of environmentally sustainable and durable construction materials. This research explores the environmental impact of mortars incorporating treated ladle furnace steel slag at cement replacement ratios of 10%, 20%, and 30%. The ladle furnace steel slag was integrated into cement mortars of varying cement types. Life Cycle Assessment (LCA) was conducted using SimaPro software, version 9.3, employing ReCiPe and IPCC 2013 methodologies. The environmental impacts were assessed within the cradle-to-gate system boundaries, considering the grinding process of ladle furnace steel slag. The outcomes were expressed in terms of mid-point indicators. Across all cement types, a discernible reduction in the values of key environmental indicators was observed for the steel slag substitution samples compared to reference samples without cement substitution. Notably, the climate change indicator (GWP – global warming potential) exhibited a reduction of up to 54 g CO2eq per 1 kg of mortar. Grinding the slag to a higher fineness did not result in a significant escalation in the values of the monitored environmental indicators.
© 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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