Construction waste quantification and benchmarking in Libya

• Main Authors: Alsadey, S., Hamid, S., Omran, A.
• Format: Conference Proceeding
• Language: English
• Subjects: Benchmarks; Construction; Construction industry; Construction materials; Decision making; Incentives; Pollution sources; Residential buildings; Waste management
• ISSN: 0094-243X; 1551-7616
• DOI: 10.1063/5.0108219

One of the main sources of environmental pollution is the construction industry. The implementation of waste minimization program relies heavily on estimates of amount of construction waste. In the assessment of potential for waste reduction, it is important to have projection of construction waste amount. Quantified measurements expressed in numerical terms provide the foundation for decision-making in minimizing waste generated. It is thus possible to attain a better comprehension of generation of construction waste, in terms of sources and causes. Insufficient benchmarking would challenge the implantation of environmental-friendly practices in the industry. This research's aim is to set up benchmarks on construction waste generation rate in Bani Walid city, Libya based on suitable approach of waste quantification. For the purpose of this investigation, six projects in Bani Walid that was constructed between the years 2010 to 2020 were chosen. This includes commercial and residential building projects that were carried out by a wide range of contractors using conventional systems. In this investigation, waste index and level of wastage methods have been used as a means of quantifying waste and aiding assessment of environment. At present, there is still insufficient awareness among construction parties in Libya in terms of minimizing waste. This is seen in the lack of sorting of wastage and recycling practices, inefficient record-keeping of wastes, and insufficient support from clients, authorities, and top management. Attainment of desired levels in waste generation rate in the context of Libya relies heavily on the role of construction authorities. As the policy-maker and enforcer, construction authorities play a role in developing and issuing incentives or regulations to promote waste management practices and the usage of environmental-friendly technology, introduce beneficial measures and guidelines, set up standardized systems for record-keeping of quantitative information, carry out training and education in order to promote sustainability and better environmental awareness among the construction parties of Libya.