The following conclusions can be drawn:
GIS is a suitable tool for the management of demolitionwaste in
quantifying the waste flows from the building demolition by
using spatial and temporal dimensions.
Concrete waste is the largest share of the total waste, followed
by brick and the glass waste. It is worth noting that other mixed
waste (e.g. timber, plastic, paint, etc.) accounts for 9% of the
total.
Rapidly developing city like Shenzhen will rapidly renew again
in the future. This situation will likely result in a series of severe
issues such as peak in the generation of demolition waste.
Compared to the worst-case scenario, the optimum scenario
would reduce the amount of waste to be disposed in landfills by
80% and increase the value of recycling by 65%. It is imperative to
improve the recycling rate and raise the potential economic
benefits of demolition waste.
Acknowledgments
This study was supported by the Australian Research Council
Project “Re-considering Sustainable Building and Design: A Cultural
Change Approach” (LP110100156); the Scientific Research Foundation
of Introduced High Talent Financial Subsidies of Shenzhen
University; Research Center of Urban Resource Recycling Technology
of Graduate School at Shenzhen, Tsinghua University and
Shenzhen Green Eco-Manufacturer High-Tech, Co. Ltd.
(URRT2014002) for funding and support. In addition, the authors
would like to acknowledge Mr. T. Ned Miller for valuable
comments.