7. Waste Control

Waste control is a critical aspect of green construction that focuses on minimizing the generation of waste and effectively managing the waste that is produced during construction and demolition processes. By adopting sustainable practices, green construction aims to reduce the environmental impact of waste, conserve resources, and promote responsible waste disposal. [5]

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From the National Waste Report, construction and demolition waste take the largest percentage of Australia's wastes in the recent decades. And the figure is still growing in the recent years, which reveals that green construction need to be processed urgently and effectively.[6]

YearTotal Waste Generation(Mt)Construction and Demolition Waste(Mt)Percentage

Data source from National Waste Report 2022

  1. Segregation
  • Implement a waste segregation system on-site. 
  • Separate different types of waste materials into designated containers or bins. 
  • Common categories may include concrete, wood, metal, plastics, cardboard, and hazardous materials. 
  1. Designated disposal areas
  • Designate specific areas on the construction site for waste storage and disposal. 
  • Clearly mark and label waste disposal zones to ensure proper waste segregation.
  • If landscaping is involved, compost organic waste like plant trimmings and wood scraps to reduce landfill waste and create nutrient-rich soil for future landscaping projects.
  1. Hazardous waste handling

If hazardous materials are present, such as asbestos, lead-based paint, or chemical waste, handle them with extreme caution. Follow all local regulations for the safe disposal of hazardous waste.

  1. Recycling & Reusing
  • Maximize recycling efforts by collecting and recycling materials like concrete, metal, and plastics that can be reused in future projects. Partner with local recycling facilities to ensure proper disposal.
  • Whenever possible, explore opportunities to reuse materials on-site or in other construction projects. Salvage materials that are still in good condition and can serve another purpose.
  1. Waste collection and document
  • Establish a regular waste collection schedule to avoid accumulation and maintain a clean and organized construction site. 
  • Store waste materials in covered containers or bins to prevent them from being exposed to the elements, which can lead to contamination and environmental hazards. 
  • Keep records of waste disposal, including the types and quantities of waste materials removed from the site, as well as their final destination (recycling facility, landfill, etc.).
  1. Waste tracking and reporting
  • Implement a waste tracking system to monitor and report on the amount and type of waste generated during construction. 
  • Analyze data to identify areas for improvement. 
  • Collaborate with suppliers to minimize excessive packaging when delivering materials to the construction site. 
  • Offer incentives to contractors and workers who actively participate in waste reduction efforts during construction.
  • Waste Management and Recycling: Implement a robust waste management plan on the construction site. 
  • Sort and recycle construction waste, such as concrete, metals, and plastics, to divert materials from landfills.[7]

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