| dc.description.abstract | A case study toward green demolition: Ruentex building demolition
ABSTRACT
The green demolition has gradually become a tendency due to sustainability that influences the policies and needs of the society. The study objective is to apply the indicators of green demolition and to evaluate their feasibility in practice. After the literature review, the study adopted the indicators developed in the previous studies and then applied them to Ruentex building demolition. Accordingly, the demolition was broken down into 8 sub-plans regarding preparation, temporary facilities, scheduling control, demolition method selection, equipment outline, demolition activities, transportation, and safety/health. The results of the case conclude that (1) the descriptions for the indicators need adjustment since the current cannot exactly show which or how the activities should be performed; (2) the weights for the indicators should be re-reviewed to reflect the reality.
Assessment methods have been developed in the literature for assessing the performance of a building demolition project while conducting the green demolition concept. This research employed a locally developed “green demolition assessment method” and conducted a case study of the Ruentex Twin-Star building demolition project. The Ruentex Twin-Star building is a 27 years old, 12 stories reinforced concrete residential building in Taipei. Its total floor area is 13,288 square meters. It is because the sea sand house construction and demolition.
There are four categories in the locally developed green demolition assessment method. They are the “waste reduction”, “energy conservation”, “pollution reduction” and “safety.” A questionnaire adapting the assessment method was developed. Interviews were then conducted using the questionnaire with the personnel from the Ruentex controlling office (4 persons), the Runentex supervising office (6 persons) on site, and the demolition contractor (2 persons) in the Twin-star project. The questionnaire result shows an average score of 61.42 (out of 100) of the project.
To go further into the questionnaire, the project scored fair in the category of “waste reduction” (40/56), but in saving energy (1.92 / 7), and one environmental protection (19.5 / 37), there is still a lot of room for improvement. In this study, the projects that can be further refined by the demolition project itself include: (B) energy conservation, (b) alternative energy use, (C) environmental protection: (c) noise, (b) energy efficiency, (b) energy efficiency, And vibration protection, (d) conservation and preservation of monuments, and (g) removal of hazardous waste.
In short, the dismantling of buildings in accordance with appropriate procedures, classification, transport clean-up and follow-up re-use-related pathways is very important, in addition to effectively achieve the goal of reducing waste removal, and reduce waste removal The time and cost of the sorting process. Further analysis and discussion are described in the paper. Many building demolition projects in the future can refer to the results of this case study, in the demolition planning and implementation in a more environmentally friendly way to carry out green demolition to promote the sustainable use of construction resources.
Keywords: green demolition, indicator, case study, sustainability | en_US |