| Title |
Environmental Impact and Water Foot Print Assessment of Pot Bearing Using Life Cycle Assessment (LCA) |
| Authors |
박지형(Park, Jihyung) ; 위대형(Wie, Daehyung) ; 고광훈(Ko, Kwanghoon) ; 황용우(Hwang, Yongwoo) |
| DOI |
https://doi.org/10.12652/Ksce.2018.38.6.0851 |
| Keywords |
교량용 포트받침;전과정 평가;물 발자국;환경영향 Pot bearing;LCA (Life cycle assessment);Water footprint;Environmental impact |
| Abstract |
In this research, LCA analysis of the manufacturing process of pot bearing for fixed, movable in all directions, movable in one direction was carried out to analyze the environmental load using the LCA methodology. Especially, the water footprint that has been and issue in recent years was analyzed. As a result of LCA, it was analyzed that the contribution of the plate was more than 64.2% in all of the six impact categories in the case of fixed pot bearing base, and more than 94% in the category of resource depletion and photochemical oxidant creation. In the case of all direction pot bearing and one direction pot bearing, the contribution of PTFE was the highest in the global warming and stratospheric ozone depletion, and the contribution by the plate was higher in the other impact categories. The water footprint of each type of pot bearing was analyzed as $22.4m^3\;H_2O\;eq/kg$ for one direction pot bearing, $17.1m^3\;H_2O\;eq/kg$ for fixed pot bearing, and $14.1m^3\;H_2O\;eq/kg$ for all direction pot bearing. As a result of life cycle analysis, the contribution of water use in manufacturing was more than 65% in all three types. The results of this study can be used as basic data for decision making in construction method and material selection of bridges in the future. |