Comparative environmental footprint analysis of ultra-high-performance concrete using Portland cement and alkali-activated materials
نویسندگان
چکیده
Considering the ambitious greenhouse gas emission reduction and efficient use of resource targets set by Sustainable Development Goals importance concrete structures to achieve these goals, there is an increasing need study environmental performance different production alternatives. Cement one main building materials that contribute significantly global warming; therefore, studying innovative binders can substitute cement highly recommended. This article investigates climate, material, energy, water footprints four mixtures ultra-high-performance (UHPC) with a binder made alkali-activated in comparison Portland cement. Footprint analysis carried out within cradle-to-grave life cycle assessment boundaries. Within assessment, functional unit defines quantification final product or service. The units UHPC were adapted for comparability compressive strengths. results show material has 32%–45% better terms climate footprint 19%–33% footprints, whereas trade-off be seen regarding 44%–83% higher energy 75%–146% footprints. disadvantages are caused waterglass. When allocation considered, high silica fume content have
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ژورنال
عنوان ژورنال: Frontiers in Built Environment
سال: 2023
ISSN: ['2297-3362']
DOI: https://doi.org/10.3389/fbuil.2023.1196246