The construction and demolition (C&D) industry is one of the largest waste producing industries in New Zealand. In New Zealand C&D waste represents about 18% of all waste going to landfill and around 40 - 60% of waste going to cleanfill (Waste Disposal Levy Report, 2017). An estimated 28% of all waste generated is recovered, and of that about a third is recovered within the C&D industry.
C&D resource recovery has several benefits:
Waka Kotahi is committed to increasing the level of resource recovery on state highway projects – capital and maintenance. Transport-related C&D waste that can be recycled or reused typically includes soil, concrete and asphalt, steel, iron, brick, plastic piping and electrical fixtures.
Efficient resource recovery can generate significant cost savings compared with landfill disposal costs. Transport costs can also be reduced; if waste is reused on-site or recycling sites can be identified in closer proximity than landfills or cleanfills.
Planning for resource recovery should ideally start during the pre-implementation phase of a project. This includes:
Implementation of resource recovery happens at the final design and construction phases of the project.
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