2024 Volume 80 Issue 18 Article ID: 24-18036
In order to decarbonize port construction, CO2 emissions during construction of port structures are calculated and trends are analyzed. Then, based on the results, measures to reduce CO2 emissions are being studied. On the other hand, from the perspective of life cycle assessment, it is necessary to consider reduction measures for CO2 emissions generated during the entire life cycle of structures, and it is also important to understand CO2 emissions from demolition and removal of structures during and after their use.
In this paper, embodied carbon was estimated and evaluated using an actual seawall as a case study to understand the amount of CO2 emissions generated during the life cycle of a port structure. The CO2 emission reduction effect of reusing stones, soil, and sand generated from the demolition of the first-lifecycle seawalls as construction materials for the second-lifecycle seawall was also estimated, assuming that a new facility with the same cross section is constructed after the demolition and removal of the seawall.
