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CIB Conferences

Abstract

In recent years, the zero-waste objective has garnered significant attention from researchers and policymakers as a promising approach to mitigate the environmental impacts of the construction industry, with the goal of diverting 100% of waste from landfills and maximising resource recovery. In New Zealand (NZ), while various policies and initiatives have been implemented across the country, limited empirical studies have investigated the status of waste diversion in construction projects. To address this research gap, the authors analysed 160 residential projects across six cities in NZ, using waste reports and site waste management plans (SWMPs) to evaluate current waste diversion practices. Quantitative data in the waste report was used to calculate the landfill waste rate (LWR), waste generation rate (WGR), and waste diversion rate (WDR) for descriptive analysis. These results were further investigated through an analysis of SWMPs. The findings reveal regional differences in the amount of construction waste (CW) sent to landfills, influenced by on-site sorting practices and the availability of local off-site sorting and recycling infrastructure. These insights are crucial for waste managers and policymakers in developing strategies and regulations to minimise waste in the construction sector.

The paper will be presented:

Online

Primary U.N. Sustainable Development Goals (SDG)

Sustainable Cities and Communities - - Make cities and human settlements inclusive, safe, resilient and sustainable

Secondary U.N. Sustainable Development Goals (SDG)

Responsible Consumption and Production - - Ensure sustainable consumption and production patterns

Primary CIB Task Group OR Working commission

TG124 – Net Zero Carbon Building Design and Construction Practices

Secondary CIB Task Group OR Working commission

W116 – Smart and Sustainable Built Environments

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