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Construction and demolition waste in Western Australia: Application of existing methods to measure demolition waste

Hin Tung, Ian (2020) Construction and demolition waste in Western Australia: Application of existing methods to measure demolition waste. Honours thesis, Murdoch University.

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In Australia, the construction and demolition industry contribute up to half the majority of the total waste generated. Western Australia is not only one of the largest construction and demolition (C&D) waste producer, but also one of the worst in term of recycling rate. One of the main barriers for a proper waste management plan is the lack of data quality for waste measurement. This unique study aims to compare three measurement methods from research paper with two unique sets of data. From literature reviews, the different techniques were never applied in the same case. This project also compares the different scenario to show the economic potential of source separation and sending the waste to a recovery centre. A comparison was made with Reunion Island where similar problems related to C&D are present. Different solutions are proposed to solve those problems and to reach a Circular Economy system. It will analyse the data to perform the calculation were collected from the demolition of a high school in Hamilton Hill and Councils for the third method. The direct measurement using a map to calculate the mass of waste produced by the walls made of asphalts have a percentage of error at only 0.75%. The second method using the trucks and the density of the materials for the mass calculation had only a 4.16% percentage error. The third measurement aimed to calculate the mass of demolition over the years, according to demolition permit could not be performed due to the lack of data available. Direct measurement was found to be the calculation which has the highest potential to be accurate, but it will require much more time to collect all the measurements. The scenario for the economic comparison shown a source separation to send clean waste to resource recovery centre allowed a saving up to 80% from the price of a landfill. The creation of a coefficient of expansion seems to be a potential project to improve the quality for volumetric calculation of waste in Western Australia.

Item Type: Thesis (Honours)
Murdoch Affiliation(s): Engineering and Energy
United Nations SDGs: Goal 12: Responsible Consumption and Production
Supervisor(s): Anda, Martin
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