Ingenieur Vol.82 April-June2020 | Page 25

Refurbishment generates many types of waste materials - shortage, lack of experience of skilled workers, and careless working attitudes and behaviours, are the most dominant influencing factors in waste generation. Most of the main and sub-contractors gave this the highest value and agreed that this category is one of the main influencing factors of waste generated during the refurbishment process. In many situations, based on the rank result, most of the overall influencing factors are derived from the attitudes and behaviours of the worker towards poor work practices and non-practicing of on-site waste management. Conclusion Refurbishment can be described as the process of changing, upgrading and extending the use of existing buildings through the adaptation of their primary forms to provide a new or updated version on the original structure. Moreover, this sector is considered a labour-intensive industry. The effective management and reduction of waste from construction depends on co-operation, attitudes, and behaviour of the people involved in the construction process. Based on the findings, it can be seen that the two primary causes of the on-site generation of refurbishment waste are mainly due to the human resource factors such as inexperienced and the unskilled workers. Thus, this study suggests that by having: ● well-trained workers with proper awareness of waste management, ● incentives offered by the employer, ● sufficient knowledge and expertise of contractors, ● frequent monitoring by the site supervisors, ● implementation of an effective waste management plan, and ● effective communications between the owner and the contractors, could change the bad culture influencing the listed factors and would support the reduction of refurbishment waste generated on-site when undertaking future construction projects. Acknowledgement We would like to express our gratitude to the Faculties of Science and Engineering, University of Malaya for providing us with the relevant literature, data and information in publishing this paper. Additional technical support, advice and guidance were provided by The Construction Research Institute of Malaysia (CREAM) and the Construction Industry Development Board of Malaysia (CIDB). Finally, to the Environmental Preservation and Innovation Centre Sdn Bhd (EPIC) for the financial support provided to carry out the publishing of this article. 23