Life Cycle Assessment on Marine Utilization of Disaster Waste Considering the Tokyo Metropolitan Earthquake (Part2)

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  • 首都直下地震を想定した災害廃棄物の海洋利用に関するライフサイクルアセスメント（その2）

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<p>In the event of a large-scale disaster, it is necessary to establish a seamless strategy for utilizing concrete waste as a recycling resource, as well as to develop a technical system as a specific exit strategy. Part 1 of the report evaluated three scenarios for processing concrete waste based on functional units. This study focuses on mound reef formation and evaluates the effectiveness of utilizing new materials, including the blue carbon effect. The results indicate that the CO2 emissions of the new exit scenario are higher than those of the traditional roadbed scenario. However, considering the blue carbon effect, carbon neutrality can be achieved within a certain period. Additionally, when accounting for the alternative effect of using new materials, there is a significant advantage to utilizing concrete waste for mound reef formation in terms of LCCO2. Nevertheless, further discussion is necessary to validate the effectiveness of considering the alternative effect.</p>

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