Identification of construction waste in road and highway construction projects

摘要

Construction projects are one of the sources of solid waste in the urban area. Various researches in develop countries indicate that contribution of construction waste in the urban area tend to increase. Implementation of construction waste management hierarchy can be an approach to manage and reduce the waste. It is about priority and responsibility of managing waste. It includes waste disposal, waste treatment, waste recycle and reuse, and waste reduction. As initial phase of exploring the management of construction waste in Indonesia, the Department of Civil Engineering, University of Indonesia, has conducted several studies to identify different types of construction waste and their sources. This paper discusses the results of the study on the identification of construction waste in road and highway construction projects in the greater Jakarta area. A questionnaire survey was conducted to identify the types of waste and their sources. The study indicates that excess from soil excavation, timber and reinforcing bars are the most dominant waste produced in highway construction projects. In-efficient operation has been indicated as the main sources of these wastes. The study also shows that lack of management capability is the main factor of the production of construction waste, which is indicated correlation between the waste produced and management aspects related to project duration and labours