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Environmental Assessment of Ultra-High-Performance Concrete Using Carbon, Material, and Water Footprint
Husam Sameer1,2, Viktoria Weber3,4, Clemens Mostert5
1Center for Environmental Systems Research (CESR), University of Kassel, 34117 Kassel, Germany. husam.sameer@uni-kassel.de.
Abstract:
There is a common understanding that the environmental impacts of construction materials should be significantly reduced. This article provides a comprehensive environmental assessment within Life Cycle Assessment (LCA) boundaries for Ultra-High-Performance Concrete (UHPC) in comparison with Conventional Concrete (CC), in terms of carbon, material, and water footprint. Environmental impacts are determined for the cradle-to-grave life cycle of the UHPC, considering precast and ready-mix concrete. The LCA shows that UHPC has higher environmental impacts per m³. When the functionality of UHPC is considered, at case study level, two design options of a bridge are tested, which use either totally CC (CC design) or CC enhanced with UHPC (UHPC design). The results show that the UHPC design could provide a reduction of 14%, 27%, and 43% of carbon, material, and water footprint, respectively.
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